# Rosetta Code/Count examples/Full list

Full output for the Rosetta Code/Count examples#Raku task. Updated periodically.

This is something of a experiment. The languages have their completed task entries marked with a circled digit in the table so you can sort on the language to see which tasks have been done. Hold down control and click on several columns to do secondary, tertiary, etc. sorts.

Languages that omit a certain task have an uppercase O filled in for that task.

Ideally it would be nice to be able to generate the table on demand for any language but it is fairly intensive to generate. Once a week is ok, on demand would be unsustainable.

More than about 10 languages per page gets unwieldy and difficult to navigate. Generate reports for the top N languages in groups of 10. (N == 40 for now.)

See Rosetta_Code/Rank_languages_by_popularity/Full_list for a full language/task completion table.

Top tier | Second tier | Third tier | Fourth tier |

First ten programming languages by number of task examples completed: ① Phix ② Wren ③ Julia ④ Raku ⑤ Nim ⑥ Go ⑦ Perl ⑧ Python ⑨ J ⑩ Java

Count | Task | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |
---|---|---|---|---|---|---|---|---|---|---|---|

594 | Hello world/Text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

384 | FizzBuzz | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

381 | 99 bottles of beer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

356 | 100 doors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

310 | Comments | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

310 | Factorial | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

309 | Fibonacci sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

301 | A+B | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

290 | Empty program | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

263 | Loops/Infinite | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

251 | Reverse a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

249 | Ackermann function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

247 | Arrays | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

244 | Function definition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

239 | Loops/For | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

232 | Loops/While | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

231 | Conditional structures | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

224 | Array concatenation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

217 | Arithmetic/Integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

213 | Greatest element of a list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

206 | Even or odd | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

206 | Greatest common divisor | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

204 | Increment a numerical string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

204 | Repeat a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

204 | Sieve of Eratosthenes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

202 | Array length | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

197 | Averages/Arithmetic mean | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

197 | Binary digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

197 | Hello world/Graphical | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

196 | Towers of Hanoi | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

194 | Copy a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

193 | String concatenation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

191 | Rot-13 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

190 | Boolean values | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

190 | Loops/Downward for | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

190 | Sum and product of an array | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

188 | Integer comparison | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

187 | Apply a callback to an array | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

187 | Character codes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

187 | Hello world/Newline omission | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

187 | Palindrome detection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

185 | Integer sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

185 | Loops/For with a specified step | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

183 | String length | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

181 | String case | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

180 | Tokenize a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

179 | Loops/Foreach | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

179 | Sum of a series | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

178 | Loops/Break | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

177 | Empty string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

176 | Quine | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

174 | Logical operations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

174 | Sum of squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

173 | Dot product | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

172 | Filter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

172 | Hailstone sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

169 | Loops/Do-while | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

164 | Loops/N plus one half | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

163 | Generic swap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

162 | Associative array/Creation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

162 | Caesar cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

161 | Leap year | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

160 | Sort an integer array | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

158 | Determine if a string is numeric | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

158 | Luhn test of credit card numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

156 | Generate lower case ASCII alphabet | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

156 | System time | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

156 | User input/Text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

155 | Command-line arguments | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

155 | Execute a system command | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

155 | Stack | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

154 | Factors of an integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

154 | Higher-order functions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

153 | ABC problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

153 | Loops/Continue | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

153 | Zero to the zero power | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

152 | Hello world/Standard error | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

152 | Sorting algorithms/Quicksort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

151 | Bitwise operations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

151 | Mutual recursion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

150 | Loop over multiple arrays simultaneously | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

150 | Sorting algorithms/Bubble sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

149 | Guess the number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

149 | Primality by trial division | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

148 | Read entire file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

147 | Check that file exists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

147 | Remove duplicate elements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

146 | Create a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

146 | Least common multiple | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

145 | Balanced brackets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

145 | Count in octal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

144 | Ethiopian multiplication | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

144 | Happy numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

144 | Roman numerals/Encode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

144 | Sleep | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

143 | File input/output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

142 | Day of the week | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

142 | Mandelbrot set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

141 | Program termination | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

140 | Date format | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

140 | Literals/String | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

140 | Pascal's triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

139 | Count occurrences of a substring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

139 | Literals/Integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

139 | Substring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

139 | Variables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

136 | Compound data type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

136 | Function composition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

136 | Knuth shuffle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

136 | Strip a set of characters from a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

135 | N-queens problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

134 | Loops/Nested | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

134 | Sorting algorithms/Insertion sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

133 | Babbage problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

133 | Include a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

133 | Letter frequency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

133 | Pick random element | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | Align columns | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | Averages/Median | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | Detect division by zero | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | Matrix transposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | Null object | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

131 | String matching | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

130 | File size | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

130 | Look-and-say sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

129 | Averages/Root mean square | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

129 | Flatten a list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

129 | Read a file line by line | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

129 | Return multiple values | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

129 | String append | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

128 | Anagrams | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

128 | Binary search | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

127 | Associative array/Iteration | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

127 | Delete a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

127 | Guess the number/With feedback | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

127 | Hash from two arrays | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

127 | Matrix multiplication | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

126 | Conway's Game of Life | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

126 | Perfect numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

125 | Harshad or Niven series | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

125 | Identity matrix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

124 | Find limit of recursion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

124 | Haversine formula | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

124 | Input loop | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

123 | Call a function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

123 | Case-sensitivity of identifiers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

123 | Environment variables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

123 | Roman numerals/Decode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

123 | Sierpinski triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

122 | Assertions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

122 | Comma quibbling | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

122 | Levenshtein distance | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

121 | Classes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

121 | Real constants and functions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Bulls and cows | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Pangram checker | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Run-length encoding | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Search a list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | String interpolation (included) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Substring/Top and tail | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

120 | Variadic function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

119 | Arithmetic/Complex | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

118 | HTTP | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

118 | Rename a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

118 | Sum multiples of 3 and 5 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

117 | Formatted numeric output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

117 | Horner's rule for polynomial evaluation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

117 | Multiplication tables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

117 | Reverse words in a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

117 | The Twelve Days of Christmas | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Accumulator factory | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Averages/Pythagorean means | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Create a two-dimensional array at runtime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Evaluate binomial coefficients | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Infinity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

116 | Strip whitespace from a string/Top and tail | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

115 | Hostname | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

115 | Ordered words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

115 | Program name | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

115 | Sum digits of an integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

114 | Anonymous recursion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

114 | Permutations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

114 | Sequence of non-squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

114 | Temperature conversion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

113 | Digital root | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

113 | Sorting algorithms/Merge sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

113 | String prepend | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

113 | Zig-zag matrix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

112 | Calculating the value of e | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Amicable pairs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Catalan numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Combinations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Middle three digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Queue/Definition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

111 | Trigonometric functions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

110 | 24 game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

110 | Exceptions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

110 | Random numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

109 | Abundant, deficient and perfect number classifications | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

109 | Evolutionary algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

109 | Shell one-liner | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

109 | Vector products | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

108 | Arbitrary-precision integers (included) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

108 | Prime decomposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

108 | Short-circuit evaluation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

108 | Time a function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

107 | Arithmetic-geometric mean | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

107 | Hello world/Newbie | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

106 | Enumerations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

106 | Symmetric difference | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

105 | N'th | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

105 | Regular expressions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

105 | Show ASCII table | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

105 | Tree traversal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

104 | Power set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

104 | Sorting algorithms/Selection sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

103 | Averages/Mode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

103 | Hofstadter Q sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

103 | Walk a directory/Non-recursively | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

102 | Collections | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

102 | Exponentiation operator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

102 | Floyd's triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

102 | Hamming numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

102 | Map range | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Create an HTML table | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Execute Brain**** | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Interactive programming (repl) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Nth root | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Range expansion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

101 | Y combinator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

100 | Entropy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

100 | Sort using a custom comparator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

100 | String comparison | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

99 | First-class functions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

99 | MD5 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

99 | Modular inverse | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

99 | Number reversal game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

99 | Sorting algorithms/Cocktail sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

98 | Address of a variable | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

98 | Catamorphism | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

98 | Gray code | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

98 | Random number generator (included) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

98 | Sorting algorithms/Bogosort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Compare a list of strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Langton's ant | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Monty Hall problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Range extraction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Sierpinski carpet | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Sorting algorithms/Heapsort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

97 | Split a character string based on change of character | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

96 | Forward difference | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

96 | Last Friday of each month | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

96 | Menu | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

96 | Repeat | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

96 | Sorting algorithms/Gnome sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | Abstract type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | Averages/Simple moving average | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | CSV data manipulation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | Inheritance/Single | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | JSON | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | Number names | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | One-dimensional cellular automata | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

95 | Terminal control/Clear the screen | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

94 | Almost prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

94 | Cumulative standard deviation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

94 | Greatest subsequential sum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

94 | Munchausen numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Anti-primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Box the compass | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Count in factors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Five weekends | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Population count | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

93 | Simple windowed application | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

92 | Additive primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

92 | Department numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

92 | Literals/Floating point | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

92 | Multifactorial | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

92 | Non-decimal radices/Convert | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

91 | Count the coins | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

91 | Set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | CSV to HTML translation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Find common directory path | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Find the last Sunday of each month | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Hello world/Line printer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Long multiplication | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Operator precedence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Order two numerical lists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Playing cards | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Queue/Usage | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Thue-Morse | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | URL decoding | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

90 | Window creation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

89 | CRC-32 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

89 | Price fraction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

89 | SEDOLs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

89 | Sort an array of composite structures | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

89 | Word wrap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | 100 prisoners | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Benford's law | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Bitmap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Here document | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Josephus problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Proper divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Strip comments from a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Terminal control/Ringing the terminal bell | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Top rank per group | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

88 | Walk a directory/Recursively | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

87 | 15 puzzle game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

87 | Closures/Value capture | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

87 | Introspection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

87 | Read a specific line from a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

87 | URL encoding | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Angle difference between two bearings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Attractive numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Call an object method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Dynamic variable names | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | File modification time | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Jump anywhere | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Knapsack problem/0-1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Lucas-Lehmer test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Pi | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Pythagorean triples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Singly-linked list/Traversal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Spiral matrix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

86 | Take notes on the command line | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Convert seconds to compound duration | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Extend your language | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Find the missing permutation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Priority queue | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Show the epoch | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

85 | Sorting algorithms/Shell sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Fibonacci n-step number sequences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Kaprekar numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Monte Carlo methods | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Rep-string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Sockets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

84 | Sorting algorithms/Counting sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Date manipulation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Dragon curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Gamma function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Keyboard input/Obtain a Y or N response | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

83 | Linear congruential generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Man or boy test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Old lady swallowed a fly | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Pernicious numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Sequence of primes by trial division | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Soundex | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | Special characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

83 | XML/Input | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Animation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Calendar | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Call a foreign-language function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Concurrent computing | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Currying | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Equilibrium index | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Jewels and stones | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Quaternion type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Semordnilap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Sort disjoint sublist | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Unicode variable names | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Web scraping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

82 | Write entire file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Anagrams/Deranged anagrams | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Empty directory | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Flow-control structures | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Jensen's Device | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Rock-paper-scissors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Singly-linked list/Element definition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Sorting algorithms/Comb sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Vigenère cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

81 | Zeckendorf number representation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | AKS test for primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Averages/Mean angle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Euler method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Exponentiation order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Fractal tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Guess the number/With feedback (player) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

80 | Narcissistic decimal number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Chinese remainder theorem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Draw a sphere | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Four bit adder | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | General FizzBuzz | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Hello world/Web server | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | ISBN13 check digit | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | List comprehensions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Maze generation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Non-decimal radices/Output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | SHA-1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Sort three variables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Square but not cube | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Sudoku | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

79 | Van Eck sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | Damm algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | Execute HQ9+ | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | I before E except after C | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | McNuggets problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | Read a configuration file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | Semiprime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

78 | Stern-Brocot sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Bitmap/Bresenham's line algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Catalan numbers/Pascal's triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Enforced immutability | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Largest int from concatenated ints | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Phrase reversals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Roots of unity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Self-describing numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Sorting algorithms/Stooge sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Unix/ls | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Van der Corput sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Write float arrays to a text file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

77 | Yin and yang | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

76 | Combinations with repetitions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

76 | Exceptions/Catch an exception thrown in a nested call | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

76 | Multiple distinct objects | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

76 | Stair-climbing puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

76 | Trabb Pardo–Knuth algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | Constrained random points on a circle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | Magic 8-ball | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | Parsing/RPN calculator algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | SHA-256 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | Special variables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

75 | Strip control codes and extended characters from a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | 4-rings or 4-squares puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Amb | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Continued fraction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Longest common subsequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Nested function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Numerical integration | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Polymorphism | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

74 | Runtime evaluation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Barnsley fern | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Closest-pair problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Determine if a string is collapsible | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Isqrt (integer square root) of X | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Magic squares of odd order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Named parameters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Probabilistic choice | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Tau function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

73 | Variable size/Get | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Abundant odd numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Arithmetic/Rational | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Compile-time calculation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | O | ⑨ | ⑩ |

72 | Fast Fourier transform | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Get system command output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | IBAN | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Leonardo numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Morse code | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | RPG attributes generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Smith numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Sorting algorithms/Pancake sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Subleq | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Text processing/Max licenses in use | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

72 | Word frequency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Best shuffle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Chinese zodiac | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Circles of given radius through two points | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Disarium numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Dutch national flag problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Euler's sum of powers conjecture | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Extract file extension | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Modular exponentiation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | One of n lines in a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Primality by Wilson's theorem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Roots of a function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Singly-linked list/Element insertion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Two identical strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

71 | Two sum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Binary strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Cartesian product of two or more lists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Emirp primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Factors of a Mersenne number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Host introspection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Long year | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Memory allocation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Reduced row echelon form | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Remove lines from a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Sort stability | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

70 | Write language name in 3D ASCII | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Animate a pendulum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Arithmetic evaluation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Base64 decode data | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | CUSIP | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Cholesky decomposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Determine if a string has all the same characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Documentation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Draw a clock | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Draw a cuboid | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Draw a pixel | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Fork | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Integer overflow | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Mouse position | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

69 | Non-decimal radices/Input | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Remove vowels from a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

69 | Runge-Kutta method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | 9 billion names of God the integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Hofstadter-Conway $10,000 sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Longest common substring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Miller–Rabin primality test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Plot coordinate pairs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Roots of a quadratic function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Sorting algorithms/Sleep sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Tic-tac-toe | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | Undefined values | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

68 | XML/Output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Averages/Mean time of day | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Base64 encode data | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Cantor set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Copy stdin to stdout | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

67 | FASTA format | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Globally replace text in several files | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | HTTPS | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Longest common prefix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Optional parameters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Pascal matrix generation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Quickselect algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Tau number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Ternary logic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Test a function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

67 | Vector | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Farey sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Gapful numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Inheritance/Multiple | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Knight's tour | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Ludic numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Maximum triangle path sum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Terminal control/Display an extended character | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

66 | Totient function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | 2048 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | Bitmap/Write a PPM file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | JortSort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | Knapsack problem/Continuous | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | Knapsack problem/Unbounded | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | Truncatable primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

65 | Unicode strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | 24 game/Solve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Brownian tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Code Golf: Code Golf | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

64 | DNS query | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Days between dates | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Discordian date | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Fibonacci word | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Fusc sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Generator/Exponential | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Huffman coding | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Loops/Increment loop index within loop body | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Nim game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

64 | Sum of first n cubes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

63 | Add a variable to a class instance at runtime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Archimedean spiral | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Convert decimal number to rational | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Horizontal sundial calculations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Left factorials | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Odd word problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Partial function application | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Sattolo cycle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

63 | Smallest square that begins with n | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

63 | Sum of divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Dijkstra's algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Dinesman's multiple-dwelling problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Grayscale image | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Iterated digits squaring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Kernighans large earthquake problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | LZW compression | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Mad Libs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Matrix-exponentiation operator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | O |

62 | Random number generator (device) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Sort numbers lexicographically | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Terminal control/Coloured text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Truncate a file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

62 | Validate International Securities Identification Number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Deal cards for FreeCell | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Define a primitive data type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Doubly-linked list/Element definition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Find the intersection of two lines | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Hash join | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Largest proper divisor of n | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Loops/With multiple ranges | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Multisplit | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Pig the dice game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Pointers and references | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Scope modifiers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Sorting algorithms/Bead sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Topological sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Unbias a random generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | User input/Graphical | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

61 | Words containing "the" substring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

60 | Abbreviations, automatic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Bell numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Bernoulli numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Compare length of two strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Extreme floating point values | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Inverted syntax | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Keyboard input/Keypress check | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Perfect shuffle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Runtime evaluation/In an environment | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Shoelace formula for polygonal area | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Sierpinski triangle/Graphical | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Singleton | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

60 | Stem-and-leaf plot | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Call a function in a shared library | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Chaos game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Delegates | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | First-class functions/Use numbers analogously | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Forest fire | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Holidays related to Easter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Password generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Perfect totient numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Rosetta Code/Rank languages by popularity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Sorting algorithms/Permutation sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Tokenize a string with escaping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

59 | Universal Turing machine | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Egyptian division | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Halt and catch fire | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Handle a signal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

58 | Hofstadter Figure-Figure sequences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Kronecker product | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Modulinos | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Rate counter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Recaman's sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Search a list of records | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Seven-sided dice from five-sided dice | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Stack traces | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Statistics/Basic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | Wireworld | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

58 | XML/XPath | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

57 | Associative array/Merging | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Bioinformatics/base count | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Determine if a string has all unique characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Fractran | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Generate Chess960 starting position | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Heronian triangles | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Longest string challenge | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Naming conventions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Non-continuous subsequences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Polynomial regression | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Strange plus numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

57 | Water collected between towers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Extensible prime generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Gaussian elimination | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Jaro similarity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Longest increasing subsequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Move-to-front algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Send email | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | O | ⑩ |

56 | Set consolidation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Strip block comments | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | Ulam spiral (for primes) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

56 | XML/DOM serialization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Average loop length | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Casting out nines | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Execute a Markov algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Mertens function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Munching squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Odd and square numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

55 | Spinning rod animation/Text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Sum of the digits of n is substring of n | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

55 | Synchronous concurrency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

55 | Terminal control/Cursor positioning | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

55 | Text processing/2 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | 21 game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Aliquot sequence classifications | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Convex hull | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Determinant and permanent | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Determine if a string is squeezable | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Digital root/Multiplicative digital root | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Doubly-linked list/Element insertion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Elementary cellular automaton | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Greyscale bars/Display | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Hilbert curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Idiomatically determine all the lowercase and uppercase letters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Musical scale | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Substitution cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Text between | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | The Name Game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

54 | Zebra puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Append a record to the end of a text file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Chowla numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Currency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Dining philosophers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Doubly-linked list/Traversal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

53 | Image noise | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | MAC vendor lookup | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Make directory path | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Matrix with two diagonals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

53 | Numbers divisible by their individual digits, but not by the product of their digits. | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

52 | ABC words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | Find words which contains more than 3 e vowels | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

52 | Floyd-Warshall algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | GUI component interaction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | Metaprogramming | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | O |

52 | Polynomial long division | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | Problem of Apollonius | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | Respond to an unknown method call | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | O |

52 | Stable marriage problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

52 | Start from a main routine | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | O | ⑨ | O |

52 | Text processing/1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Abbreviations, easy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Bitmap/Flood fill | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Colour bars/Display | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Colour pinstripe/Display | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Doubly-linked list/Definition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

51 | History variables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Last letter-first letter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Permutations/Derangements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Polymorphic copy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Send an unknown method call | ① | ② | ③ | ④ | O | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Strange numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Taxicab numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Variable size/Set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

51 | Verify distribution uniformity/Naive | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Approximate equality | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Bitmap/Midpoint circle algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Bitmap/Read a PPM file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Brazilian numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Combinations and permutations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Coprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

50 | Humble numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Lah numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Nice primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Sequence: smallest number with exactly n divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Sorting Algorithms/Circle Sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Sorting algorithms/Radix sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Sparkline in unicode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Sum to 100 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Twelve statements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | UTF-8 encode and decode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

50 | Visualize a tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | 10001th prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Active object | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Deepcopy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Display a linear combination | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Element-wise operations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | File extension is in extensions list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Find prime n such that reversed n is also prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

49 | Find square difference | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

49 | Magnanimous numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Narcissist | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | OpenGL | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Parsing/Shunting-yard algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Permutations by swapping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Product of divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Shift list elements to left by 3 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

49 | Show the (decimal) value of a number of 1s appended with a 3, then squared | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

49 | Special divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

48 | Balanced ternary | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Bulls and cows/Player | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Color of a screen pixel | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Continued fraction/Arithmetic/Construct from rational number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Count how many vowels and consonants occur in a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

48 | Determine if only one instance is running | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

48 | Feigenbaum constant calculation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Fivenum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Flipping bits game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | GUI/Maximum window dimensions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Golden ratio/Convergence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Input/Output for pairs of numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Julia set | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Long primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Loops/Wrong ranges | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Palindrome dates | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Pseudo-random numbers/Middle-square method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Secure temporary file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

48 | Speech synthesis | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

48 | Steady squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

48 | Subtractive generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Sudan function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Truth table | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

48 | Yellowstone sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Ascending primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Base 16 numbers needing a to f | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

47 | Echo server | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

47 | Extra primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Factorions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Find words which contains all the vowels | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

47 | Keyboard input/Flush the keyboard buffer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

47 | Knapsack problem/Bounded | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Largest number divisible by its digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Mersenne primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Pythagorean quadruples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Sailors, coconuts and a monkey problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Sort a list of object identifiers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Sutherland-Hodgman polygon clipping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Table creation/Postal addresses | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

47 | Terminal control/Dimensions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

47 | Triplet of three numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

47 | Type detection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Abbreviations, simple | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Arithmetic numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Arithmetic-geometric mean/Calculate Pi | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Atomic updates | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | O | ⑩ |

46 | Carmichael 3 strong pseudoprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Compiler/lexical analyzer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Find prime numbers of the form n*n*n+2 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

46 | Find the intersection of a line with a plane | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Hickerson series of almost integers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Integer roots | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Koch curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Pascal's triangle/Puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Permutations with repetitions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Primorial numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Rosetta Code/Count examples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Safe primes and unsafe primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Sequence: smallest number greater than previous term with exactly n divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Sorting algorithms/Patience sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

46 | Unique characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

45 | Cheryl's birthday | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Church numerals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Cramer's rule | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Cycle detection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Digit fifth powers | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

45 | Eban numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Euler's identity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Fairshare between two and more | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Find squares n where n+1 is prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

45 | First 9 prime Fibonacci number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Four is magic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Frobenius numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | MD5/Implementation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Numerical integration/Adaptive Simpson's method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Primes whose sum of digits is 25 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Ranking methods | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Read a file character by character/UTF8 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | S-expressions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Scope/Function names and labels | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

45 | Terminal control/Hiding the cursor | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

45 | Variable-length quantity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

45 | Voronoi diagram | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Brace expansion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Chaocipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Cuban primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Find words whose first and last three letters are equal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

44 | Function prototype | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | O | ⑨ | ⑩ |

44 | Input/Output for lines of text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Kahan summation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Magic squares of doubly even order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Modular arithmetic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Numbers with prime digits whose sum is 13 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Partition an integer x into n primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Percentage difference between images | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Prime conspiracy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Sort the letters of string in alphabetical order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

44 | Sorting algorithms/Strand sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Sum of elements below main diagonal of matrix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Summarize and say sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Terminal control/Inverse video | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

44 | Test integerness | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Topswops | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

44 | Vampire number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Bitwise IO | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

43 | Calendar - for "REAL" programmers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | O | ⑨ | O |

43 | Cousin primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

43 | Find palindromic numbers in both binary and ternary bases | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | GUI enabling/disabling of controls | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Implicit type conversion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Inverted index | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Knuth's algorithm S | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Metronome | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Parallel calculations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Parametric polymorphism | ① | ② | ③ | ④ | ⑤ | ⑥ | O | O | ⑨ | ⑩ |

43 | Pathological floating point problems | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Penney's game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Pythagoras tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Ray-casting algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Statistics/Normal distribution | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

43 | Xiaolin Wu's line algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Bitmap/Bézier curves/Cubic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

42 | Circular primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Dice game probabilities | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Fibonacci word/fractal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Length of an arc between two angles | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Longest common suffix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Maze solving | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Multi-dimensional array | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Multiple regression | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Numbers in base-16 representation that cannot be written with decimal digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

42 | Numbers whose binary and ternary digit sums are prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

42 | Numbers with same digit set in base 10 and base 16 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

42 | Old Russian measure of length | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Permutation test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Pinstripe/Display | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | QR decomposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

42 | Rosetta Code/Find bare lang tags | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

42 | Solve the no connection puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Alternade words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Apply a digital filter (direct form II transposed) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Canonicalize CIDR | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Constrained genericity | ① | ② | ③ | ④ | ⑤ | ⑥ | O | O | ⑨ | ⑩ |

41 | Create a file on magnetic tape | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

41 | Determine if two triangles overlap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

41 | Diversity prediction theorem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Draw a rotating cube | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Entropy/Narcissist | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Events | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

41 | Find words with alternating vowels and consonants | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

41 | Harmonic series | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | LU decomposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Lychrel numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Machine code | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

41 | Metered concurrency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Minimum multiple of m where digital sum equals m | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Minimum number of cells after, before, above and below NxN squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

41 | Möbius function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Numerical integration/Gauss-Legendre Quadrature | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | O'Halloran numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Parsing/RPN to infix conversion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Perlin noise | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Positive decimal integers with the digit 1 occurring exactly twice | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

41 | Smarandache prime-digital sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Strange unique prime triplets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

41 | Successive prime differences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | AVL tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

40 | Abelian sandpile model | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Break OO privacy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Calkin-Wilf sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Change e letters to i in words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Check output device is a terminal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Common list elements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Deceptive numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Doomsday rule | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Find first missing positive | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Find if a point is within a triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Find minimum number of coins that make a given value | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | First power of 2 that has leading decimal digits of 12 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Maximum difference between adjacent elements of list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Mosaic matrix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

40 | Motzkin numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Negative base numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Numbers with equal rises and falls | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Object serialization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Poker hand analyser | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Polyspiral | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Square-free integers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Strong and weak primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Word wheel | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

40 | Zumkeller numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Algebraic data types | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Angles (geometric), normalization and conversion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Append numbers at same position in strings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Bitmap/Bézier curves/Quadratic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

39 | Common sorted list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Conjugate transpose | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Create an object at a given address | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | O | ⑨ | O |

39 | Esthetic numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Find first and last set bit of a long integer | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

39 | Gauss-Jordan matrix inversion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Jacobi symbol | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Minesweeper game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Multiline shebang | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Mutex | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Neighbour primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Numbers in base 10 that are palindromic in bases 2, 4, and 16 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Order disjoint list items | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Parse command-line arguments | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Peano curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | RIPEMD-160 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

39 | RSA code | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Safe and Sophie Germain primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

39 | Set puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Subset sum problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Superellipse | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Terminal control/Unicode output | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

39 | Textonyms | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

39 | Twin primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Burrows–Wheeler transform | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Erdős-primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

38 | Faulhaber's triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | First perfect square in base n with n unique digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Four sides of square | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

38 | Greedy algorithm for Egyptian fractions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Jacobsthal numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | MD4 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Minimum numbers of three lists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

38 | Ordered partitions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Padovan sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Pentagram | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Pragmatic directives | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Sorting algorithms/Cycle sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Sum and product puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Summarize primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

38 | Unique characters in each string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

38 | Weird numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Bacon cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Bin given limits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Biorhythms | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Color wheel | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Death Star | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Decimal floating point number to binary | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Find words which contain the most consonants | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

37 | Galton box animation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Generate random numbers without repeating a value | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Giuga numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Mayan numerals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Pell's equation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Product of min and max prime factors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

37 | Pseudo-random numbers/PCG32 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Rosetta Code/Find unimplemented tasks | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

37 | Sexy primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Sylvester's sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

37 | Terminal control/Cursor movement | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

37 | Terminal control/Preserve screen | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

37 | Wieferich primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

37 | Words from neighbour ones | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Chebyshev coefficients | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Chemical calculator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Cullen and Woodall numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Day of the week of Christmas and New Year | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

36 | Deconvolution/1D | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Descending primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Exactly three adjacent 3 in lists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

36 | Faulhaber's formula | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Largest prime factor | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

36 | Law of cosines - triples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Long literals, with continuations | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Mian-Chowla sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Next highest int from digits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Numbers which are the cube roots of the product of their proper divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Partition function P | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Primes with digits in nondecreasing order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

36 | Random Latin squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Reflection/List properties | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | Solve a Hidato puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

36 | Super-d numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

36 | URL parser | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Bitmap/Histogram | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

35 | Check input device is a terminal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | O | O |

35 | Decision tables | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Distinct power numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

35 | FTP | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Increasing gaps between consecutive Niven numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Klarner-Rado sequence | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

35 | Memory layout of a data structure | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Mind boggling card trick | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Minimum positive multiple in base 10 using only 0 and 1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Monads/Maybe monad | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Multiplicative order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Odd squarefree semiprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

35 | Odd words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Parallel brute force | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

35 | Parameterized SQL statement | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | O | ⑩ |

35 | Pierpont primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Prime numbers which contain 123 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

35 | Resistor mesh | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Set of real numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Sierpinski arrowhead curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

35 | Simple database | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Sleeping Beauty problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Stirling numbers of the first kind | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Stirling numbers of the second kind | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Straddling checkerboard | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Topic variable | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

35 | Unprimeable numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Use another language to call a function | ① | ② | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | ||

35 | Verify distribution uniformity/Chi-squared test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

35 | Window creation/X11 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

35 | Word break problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Bioinformatics/Sequence mutation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Bitcoin/address validation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

34 | Deming's funnel | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Duffinian numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Euler's constant 0.5772... | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

34 | Executable library | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Execute SNUSP | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Finite state machine | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Honaker primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Hunt the Wumpus | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

34 | Largest five adjacent number | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

34 | Last list item | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

34 | N-smooth numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Piprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

34 | Prime triplets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

34 | Range consolidation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Riordan numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

34 | Summation of primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

34 | Total circles area | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Video display modes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

34 | Write to Windows event log | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

34 | Zhang-Suen thinning algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Almkvist-Giullera formula for pi | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Checkpoint synchronization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Cistercian numerals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Compiler/virtual machine interpreter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Concatenate two primes is also prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

33 | Curzon numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Cut a rectangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | De Bruijn sequences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | First class environments | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Generate random chess position | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Go Fish | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | HTTPS/Authenticated | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

33 | Idiomatically determine all the characters that can be used for symbols | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Kronecker product based fractals | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Legendre prime counting function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Palindromic primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

33 | Plasma effect | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Ramer-Douglas-Peucker line simplification | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

33 | Sierpinski pentagon | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

33 | Sorting algorithms/Cocktail sort with shifting bounds | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

33 | Sum of primes in odd positions is prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

33 | Sum of square and cube digits of an integer are primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

32 | Arena storage pool | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

32 | Changeable words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Chat server | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

32 | Factorial primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

32 | Fermat numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Honeycombs | ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

32 | Keyboard macros | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

32 | Merge and aggregate datasets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Nonoblock | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Numbers whose count of divisors is prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

32 | Numeric error propagation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Own digits power sum | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Ramsey's theorem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Reflection/List methods | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Reverse the order of lines in a text file while preserving the contents of each line | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

32 | Rosetta Code/Fix code tags | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Selectively replace multiple instances of a character within a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Smallest multiple | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

32 | State name puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

32 | Stream merge | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

32 | Sunflower fractal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

32 | Table creation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | A* search algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Anadromes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Birthday problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Check Machin-like formulas | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Collect and sort square numbers in ascending order from three lists | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | De Polignac numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Find adjacent primes which differ by a square integer | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

31 | Formal power series | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Idoneal numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | Monads/List monad | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Numeric separator syntax | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

31 | Play recorded sounds | ① | ② | ③ | ⑤ | ⑥ | ⑧ | ⑩ | |||

31 | Prime words | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | Pseudo-random numbers/Splitmix64 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

31 | Quadrat special primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | Safe addition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Shortest common supersequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

31 | Snake and ladder | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Special neighbor primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

31 | Spelling of ordinal numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Teacup rim text | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | The ISAAC cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Tonelli-Shanks algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Update a configuration file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

31 | Wordle comparison | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Active Directory/Connect | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

30 | Audio alarm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

30 | Consecutive primes with ascending or descending differences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Cyclops numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Decorate-sort-undecorate idiom | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Determine sentence type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

30 | Euclidean rhythm | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

30 | Find largest left truncatable prime in a given base | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Fixed length records | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Function frequency | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Longest substrings without repeating characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Magic constant | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Magic squares of singly even order | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | N-grams | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | |||

30 | Natural sorting | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Next special primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Orbital elements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Order by pair comparisons | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Palindromic gapful numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Percolation/Mean run density | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Same fringe | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Smallest power of 6 whose decimal expansion contains n | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

30 | Sum of two adjacent numbers are primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

30 | Superpermutation minimisation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Thiele's interpolation formula | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | UPC | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

30 | Ulam numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Base58Check encoding | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

29 | Brilliant numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Calmo numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

29 | Card shuffles | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Continued fraction/Arithmetic/G(matrix ng, continued fraction n) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

29 | Coprime triplets | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

29 | Cubic special primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

29 | EKG sequence convergence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Exponentiation with infix operators in (or operating on) the base | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

29 | Fraction reduction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Hex words | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

29 | Intersecting number wheels | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Largest difference between adjacent primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

29 | Levenshtein distance/Alignment | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Make a backup file | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

29 | Matrix chain multiplication | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Nautical bell | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Padovan n-step number sequences | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Palindromic primes in base 16 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

29 | Paraffins | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Parse an IP Address | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Permutations/Rank of a permutation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Permuted multiples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

29 | Primes which contain only one odd digit | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

29 | Primes whose first and last number is 3 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

29 | Rare numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Record sound | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

29 | Self numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

29 | Sequence of primorial primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Soloway's recurring rainfall | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

29 | Solve a Holy Knight's tour | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Two's complement | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

29 | Welch's t-test | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | Wilson primes of order n | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

29 | World Cup group stage | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Abelian sandpile model/Identity | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

28 | Blum integer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Cipolla's algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Colorful numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Distributed programming | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

28 | Elementary cellular automaton/Random number generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Elliptic curve arithmetic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Euclid-Mullin sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | File size distribution | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Getting the number of decimal places | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

28 | Image convolution | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | K-means++ clustering | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

28 | Linux CPU utilization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Lucky and even lucky numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Playfair cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Print itself | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

28 | Pseudo-random numbers/Xorshift star | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

28 | Round-robin tournament schedule | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Snake | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | The sieve of Sundaram | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Wagstaff primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

28 | Yahoo! search interface | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | 15 puzzle solver | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | Achilles numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Camel case and snake case | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑩ | ||

27 | Commatizing numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Composite numbers k with no single digit factors whose factors are all substrings of k | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Kolakoski sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Kosaraju | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Largest product in a grid | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ||

27 | Main step of GOST 28147-89 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | Markov chain text generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Pisano period | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | RCRPG | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | Reverse the gender of a string | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Sierpinski curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | Simulate input/Keyboard | ① | ② | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | ||

27 | Solve a Numbrix puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

27 | Solve triangle solitaire puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

27 | Sort primes from list to a list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

27 | Special factorials | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

27 | Zeckendorf arithmetic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | ASCII art diagram converter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Assertions in design by contract | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

26 | Goldbach's comet | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

26 | Hough transform | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Inconsummate numbers in base 10 | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

26 | Index finite lists of positive integers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | List rooted trees | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Mastermind | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

26 | Monads/Writer monad | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Nested templated data | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

26 | Ormiston pairs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

26 | Pancake numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

26 | Periodic table | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Prime numbers p for which the sum of primes less than or equal to p is prime | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

26 | Print debugging statement | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Sine wave | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

26 | Sphenic numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

26 | Substring primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

26 | Sum data type | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

25 | Active Directory/Search for a user | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

25 | Arithmetic derivative | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2) | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

25 | Eertree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

25 | Find duplicate files | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

25 | Joystick position | ① | ② | ③ | ④ | ⑥ | ⑧ | ||||

25 | Matrix digital rain | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Median filter | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Metallic ratios | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Minimum primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

25 | Modified random distribution | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | N-body problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Native shebang | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

25 | Pandigital prime | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑨ | |||

25 | Perceptron | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

25 | Permutations with some identical elements | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

25 | Practical numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Radical of an integer | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

25 | Reflection/Get source | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | SOAP | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | |||

25 | Sequence: nth number with exactly n divisors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Set right-adjacent bits | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Sierpinski square curve | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Solve a Hopido puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

25 | Untrusted environment | ① | ② | ④ | ⑤ | ⑥ | ⑦ | ⑨ | |||

25 | Variable declaration reset | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

25 | Vibrating rectangles | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

24 | Addition chains | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

24 | Air mass | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

24 | Bilinear interpolation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Bitcoin/public point to address | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

24 | Compiler/code generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Compiler/syntax analyzer | ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

24 | Conjugate a Latin verb | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

24 | Create an object/Native demonstration | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Erdős-Nicolas numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Juggler sequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | K-d tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

24 | Largest palindrome product | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | |||

24 | Line circle intersection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

24 | Meissel–Mertens constant | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Peaceful chess queen armies | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

24 | Polynomial synthetic division | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

24 | Quoting constructs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

24 | Singly-linked list/Element removal | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

24 | Sokoban | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

24 | Vigenère cipher/Cryptanalysis | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Bifid cipher | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

23 | Double Twin Primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

23 | Draw pixel 2 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

23 | Elementary cellular automaton/Infinite length | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Fortunate numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Jordan-Pólya numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Knuth's power tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Latin Squares in reduced form | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Long stairs | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

23 | Montgomery reduction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

23 | Names to numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

23 | Nonogram solver | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

23 | Numbers which are not the sum of distinct squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

23 | Pairs with common factors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

23 | Percolation/Site percolation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Pig the dice game/Player | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

23 | Smallest numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

23 | Special pythagorean triplet | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

23 | Sub-unit squares | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

23 | Two bullet roulette | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

23 | Useless instructions | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

23 | Vogel's approximation method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Compare sorting algorithms' performance | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ||

22 | Cyclotomic polynomial | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Data Encryption Standard | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

22 | Equal prime and composite sums | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Iccanobif primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

22 | Imaginary base numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Logistic curve fitting in epidemiology | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

22 | Nimber arithmetic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Percolation/Mean cluster density | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Primes - allocate descendants to their ancestors | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Pseudo-random numbers/Combined recursive generator MRG32k3a | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

22 | Safe mode | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

22 | Selective file copy | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

22 | Separate the house number from the street name | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

22 | Simulate input/Mouse | ① | ② | ③ | ④ | ⑥ | ⑧ | ⑩ | |||

22 | Tarjan | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

22 | Window management | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

21 | Arithmetic coding/As a generalized change of radix | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Aspect oriented programming | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

21 | Bézier curves/Intersections | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

21 | Color quantization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | HTTPS/Client-authenticated | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

21 | Jaro-Winkler distance | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Just in time processing on a character stream | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

21 | Longest palindromic substrings | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

21 | Multiplicatively perfect numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

21 | Pell numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Penrose tiling | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Pseudorandom number generator image | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

21 | Readline interface | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

21 | Repunit primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Rhonda numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

21 | Ruth-Aaron numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

21 | Self-hosting compiler | ① | ② | O | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ||

21 | Simulated annealing | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

21 | Transportation problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

21 | Tree from nesting levels | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | Upside-down numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

21 | Word ladder | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

21 | XML validation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | Bitmap/Read an image through a pipe | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

20 | Code segment unload | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | ⑩ | ||

20 | Compiler/AST interpreter | ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

20 | Distribution of 0 digits in factorial series | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | Execute Computer/Zero | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

20 | Minimal steps down to 1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

20 | Most frequent k chars distance | ① | ② | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

20 | OpenWebNet password | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | Ormiston triples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

20 | P-value correction | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | Penta-power prime seeds | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

20 | Prime triangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

20 | Primes: n*2^m+1 | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

20 | Proof | ① | ② | ④ | ⑤ | ⑥ | O | ⑨ | O | ||

20 | Retrieve and search chat history | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | SEND + MORE = MONEY | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

20 | SQL-based authentication | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

20 | Square root by hand | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

20 | Steffensen's method | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

20 | Terminal control/Positional read | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

20 | Three word location | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

20 | Ultra useful primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

20 | Wolstenholme numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Banker's algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

19 | Bernstein basis polynomials | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

19 | Bitmap/PPM conversion through a pipe | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

19 | CalmoSoft primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Chernick's Carmichael numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Curve that touches three points | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

19 | Earliest difference between prime gaps | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Find URI in text | ① | ② | ③ | ④ | ⑥ | ⑦ | ||||

19 | Forbidden numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

19 | Free polyominoes enumeration | ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | |

19 | Geohash | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

19 | Gradient descent | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

19 | Home primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Minkowski question-mark function | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | Percolation/Bond percolation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

19 | Quad-power prime seeds | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

19 | SHA-256 Merkle tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

19 | VList | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑨ | |||

18 | Binary coded decimal | ① | ② | ③ | ④ | ⑤ | ⑨ | ||||

18 | Bioinformatics/Subsequence | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

18 | Even numbers which cannot be expressed as the sum of two twin primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

18 | Extreme primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ||

18 | Geometric algebra | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

18 | Jaccard index | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

18 | NYSIIS | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

18 | Non-transitive dice | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Pan base non-primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | ⑩ | ||

18 | Particle swarm optimization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Polynomial derivative | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

18 | Ramanujan primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Ramanujan's constant | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Rendezvous | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | O | O | |

18 | Sorting algorithms/Tree sort on a linked list | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑨ | ⑩ | ||

18 | Square form factorization | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

18 | Suffix tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Topological sort/Extracted top item | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Triangular numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

18 | Tropical algebra overloading | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

18 | Walsh matrix | ① | ② | ③ | ④ | ⑦ | ⑨ | ⑩ | |||

18 | War card game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | Word search | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

18 | XXXX redacted | ① | ② | ③ | ④ | ⑥ | ⑦ | ||||

18 | Zsigmondy numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

17 | ADFGVX cipher | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

17 | Audio frequency generator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

17 | Boustrophedon transform | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

17 | CORDIC | ① | ② | ③ | ④ | ⑦ | ⑧ | ⑨ | ⑩ | ||

17 | Canny edge detector | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

17 | Find Chess960 starting position identifier | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

17 | Four is the number of letters in the ... | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

17 | Gotchas | ① | ② | ③ | ④ | ⑦ | ⑨ | ⑩ | |||

17 | Iterators | ① | ② | ③ | ④ | ⑤ | ⑧ | ⑨ | |||

17 | Multi-base primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

17 | Overloaded operators | ① | ② | ③ | ④ | ⑤ | ⑦ | ||||

17 | Pentomino tiling | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

17 | Rodrigues’ rotation formula | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

17 | Solve hanging lantern problem | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

17 | Tetris | ① | ② | ③ | ⑥ | ⑦ | ⑧ | ⑩ | |||

17 | Unit testing | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑩ | |||

17 | Untouchable numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

17 | Verhoeff algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Boyer-Moore string search | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

16 | Count the coins/0-1 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

16 | Distance and Bearing | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

16 | Erdös-Selfridge categorization of primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

16 | Faces from a mesh | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Factorial base numbers indexing permutations of a collection | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Functional coverage tree | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Gaussian primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

16 | Graph colouring | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Interactive help | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

16 | Isograms and heterograms | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | ⑩ | ||

16 | Mayan calendar | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Railway circuit | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

16 | Rainbow | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑧ | |||

16 | Ramanujan primes/twins | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

16 | Run as a daemon or service | ① | ② | ④ | ⑤ | ⑥ | ⑦ | ⑧ | |||

16 | Search in paragraph's text | ① | ② | ③ | ④ | ⑤ | ⑧ | ⑨ | ⑩ | ||

16 | Simple turtle graphics | ① | ② | ③ | ⑦ | ⑧ | ⑨ | ⑩ | |||

16 | Sisyphus sequence | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

16 | Text completion | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

16 | Wordiff | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

15 | ASCII control characters | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

15 | Anaprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

15 | Binomial transform | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ||

15 | Catmull–Clark subdivision surface | ① | ② | ③ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | ||

15 | Centre and radius of a circle passing through 3 points in a plane | ① | ② | ③ | ④ | ||||||

15 | Centroid of a set of N-dimensional points | ① | ② | ③ | ④ | ⑥ | ⑦ | ||||

15 | Check if two polygons overlap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

15 | Display an outline as a nested table | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

15 | Fermat pseudoprimes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | ⑩ | ||

15 | Inventory sequence | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

15 | Magic numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

15 | One-time pad | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

15 | Penholodigital squares | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

15 | Prime numbers whose neighboring pairs are tetraprimes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑨ | ⑩ | ||

15 | Set, the card game | ① | ② | ③ | ④ | ⑧ | ⑨ | ⑩ | |||

15 | Sieve of Pritchard | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

15 | Smarandache-Wellin primes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | |

15 | Solve equations with substitution method | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | |||

15 | Tree datastructures | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

15 | Undulating numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | ⑩ | ||

14 | 16 puzzle game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

14 | Check if a polygon overlaps with a rectangle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑩ | ||

14 | Checksumcolor | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

14 | Colour pinstripe/Printer | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

14 | Deconvolution/2D+ | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

14 | Execute CopyPasta Language | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

14 | Fibonacci matrix-exponentiation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

14 | Generalised floating point addition | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑨ | ⑩ | ||

14 | Greed | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

14 | Hourglass puzzle | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

14 | Knuth-Morris-Pratt string search | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

14 | Launch rocket with countdown and acceleration in stdout | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

14 | Powerful numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

14 | Singly-linked list/Reversal | ① | ② | ③ | ④ | ⑤ | ⑨ | ||||

14 | Smallest number k such that k+2^m is composite for all m less than k | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

14 | Suffixation of decimal numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

14 | Super-Poulet numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

14 | Time-based one-time password algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

14 | Tupper's self-referential formula | ① | ② | ③ | ⑤ | ⑧ | ⑨ | ⑩ | |||

14 | Using a speech engine to highlight words | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

13 | Apéry's constant | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

13 | Bioinformatics/Global alignment | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

13 | Countdown | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

13 | Factorize string into Lyndon words | ① | ② | ③ | ④ | ⑩ | |||||

13 | French Republican calendar | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

13 | Least m such that n! + m is prime | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | |||

13 | One-two primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

13 | Prime reciprocal sum | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

13 | Range modifications | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

13 | Resistance calculator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

13 | Rice coding | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

13 | Singular value decomposition | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | ⑨ | ⑩ | |

13 | Sort an outline at every level | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ |

13 | Spoof game | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

13 | Terminal control/Restricted width positional input/No wrapping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

13 | Wasteful, equidigital and frugal numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | ⑩ | ||

12 | Babylonian spiral | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

12 | Brace expansion using ranges | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

12 | Combinations with repetitions/Square digit chain | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

12 | Distinct palindromes within decimal numbers | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

12 | Elliptic Curve Digital Signature Algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑩ | |

12 | External sort | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

12 | IPC via named pipe | ① | ② | ④ | ⑥ | ⑦ | |||||

12 | Morpion solitaire | ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑨ | ⑩ | ||

12 | Parse EBNF | ① | ② | ③ | ④ | ⑥ | ⑦ | ||||

12 | Particle fountain | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑩ | ||

12 | Peripheral drift illusion | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑩ | |||

12 | Pinstripe/Printer | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

12 | Rosetta Code/Rank languages by number of users | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

12 | Rosetta Code/Tasks without examples | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑩ | ||

12 | Starting a web browser | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

12 | Terminal control/Restricted width positional input/With wrapping | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

12 | Transliterate English text using the Greek alphabet | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

12 | Worthwhile task shaving | ① | ② | ③ | ④ | ⑤ | ⑦ | ||||

11 | Addition-chain exponentiation | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

11 | Discrete Fourier transform | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

11 | Doubly-linked list/Element removal | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

11 | GSTrans string conversion | ① | ② | ③ | ④ | ⑧ | ⑩ | ||||

11 | Greatest prime dividing the n-th cubefree number | ① | ② | ③ | ④ | ⑧ | |||||

11 | Integer long division | ① | ② | ③ | ④ | ⑤ | ⑦ | ||||

11 | N-queens minimum and knights and bishops | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | |

11 | Numbers k such that the last letter of k is the same as the first letter of k+1 | ① | ② | ③ | ④ | ⑧ | ⑨ | ⑩ | |||

11 | Numerical and alphabetical suffixes | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

11 | OpenGL/Utah teapot | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑨ | |||

11 | Price list behind API | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

11 | Smallest enclosing circle problem | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

11 | Sorensen–Dice coefficient | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ⑩ | |

11 | Statistics/Chi-squared distribution | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑩ | ||

11 | URL shortener | ① | ② | ③ | ④ | ⑥ | ⑧ | ||||

10 | Black box | ① | ② | ③ | ⑤ | ⑥ | ⑨ | ||||

10 | Compiler/Verifying syntax | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

10 | Cycles of a permutation | ① | ② | ③ | ④ | ⑤ | ⑧ | ⑩ | |||

10 | Factor-perfect numbers | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | ⑨ | ||

10 | Hashtron inference | ① | ② | ③ | ④ | ⑥ | ⑧ | ⑩ | |||

10 | Hex dump | ① | ② | ③ | ④ | ⑧ | ⑨ | ||||

10 | L-system | ① | ② | ③ | ④ | ||||||

10 | P-Adic numbers, basic | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑩ | |||

10 | Raster bars | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

10 | Resistance network calculator | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ||

10 | Robots | ① | ② | ③ | ④ | ⑥ | ⑨ | ⑩ | |||

10 | Strassen's algorithm | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

10 | Tamagotchi emulator | ① | ② | ③ | ⑤ | ⑥ | ⑩ | ||||

10 | Text to HTML | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

10 | Universal Lambda Machine | ① | ② | ⑦ | ⑧ | ||||||

10 | User defined pipe and redirection operators | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑨ | |||

9 | Audio overlap loop | ① | ② | ③ | ⑤ | ⑥ | |||||

9 | B-spline | ① | ② | ③ | ④ | ⑦ | |||||

9 | Consistent overhead byte stuffing | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

9 | Dating agency | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

9 | Eisenstein primes | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | |||

9 | Engel expansion | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | |||

9 | Fibonacci heap | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑧ | |||

9 | I'm a software engineer, get me out of here | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑨ | ||

9 | Inner classes | ① | ② | ③ | ④ | ⑥ | ⑨ | ||||

9 | Marching squares | ① | ② | ③ | ④ | ⑦ | ⑧ | ⑨ | |||

9 | Multidimensional Newton-Raphson method | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

9 | OpenGL pixel shader | ① | ② | ⑥ | |||||||

9 | Random sentence from book | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | |||

9 | Rosetta Code/Run examples | ① | ② | ④ | ⑤ | ⑥ | |||||

9 | Sealed classes and methods | ① | ② | ③ | ⑤ | ⑥ | ⑨ | ||||

9 | Segmentation fault protection | ① | ② | ③ | ④ | ⑤ | ⑦ | ||||

9 | Selection bias in clinical sciences | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑧ | |||

9 | Variadic fixed-point combinator | ① | ② | ③ | ⑧ | ⑩ | |||||

8 | Exponential digital sums | ① | ② | ③ | ④ | ⑧ | |||||

8 | Hexapawn | ① | ② | ③ | ⑥ | ⑦ | ⑧ | ||||

8 | Horse racing | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

8 | JSON pointer | ① | ② | ③ | ⑥ | ⑧ | |||||

8 | Lagrange Interpolation | ① | ② | ③ | ④ | ⑨ | |||||

8 | Lucas-Carmichael numbers | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

8 | Lyndon word | ② | ③ | ④ | ⑩ | ||||||

8 | P-Adic square roots | ① | ② | ③ | ⑤ | ⑩ | |||||

8 | Recursive descent parser generator | ① | ② | ③ | ④ | ⑥ | ⑦ | ⑨ | |||

8 | Remote agent/Agent logic | ① | ② | ③ | ⑥ | ⑦ | |||||

8 | Remote agent/Simulation | ① | ② | ③ | ⑥ | ⑦ | |||||

8 | Simulated optics experiment/Data analysis | ① | ② | ③ | ⑤ | ⑧ | |||||

8 | Simulated optics experiment/Simulator | ① | ② | ③ | ⑤ | ⑧ | |||||

8 | Syntax highlighting using Mediawiki formatting | ① | ② | ③ | ⑧ | ||||||

8 | Waveform analysis/Doh ray me | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | |||

8 | WiktionaryDumps to words | ① | ② | ③ | ④ | ⑦ | ⑩ | ||||

7 | Anagram generator | ① | ② | ③ | ④ | ⑤ | ⑨ | ||||

7 | Autogram checker | ① | ② | ③ | ④ | ⑤ | ⑦ | ⑨ | |||

7 | Boids | ① | ② | ③ | ⑤ | ⑥ | ⑩ | ||||

7 | Chess player | ① | ② | ⑥ | ⑦ | ⑧ | |||||

7 | Compiler/Simple file inclusion pre processor | ① | ② | ③ | ④ | ⑨ | |||||

7 | Create an executable for a program in an interpreted language | ① | ② | ③ | ⑤ | ⑨ | |||||

7 | Divide a rectangle into a number of unequal triangles | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

7 | Dominoes | ① | ② | ③ | ⑤ | ⑦ | |||||

7 | English cardinal anagrams | ① | ② | ③ | ④ | ⑦ | ⑧ | ⑨ | |||

7 | Latin Squares in reduced form/Randomizing using Jacobson and Matthews' technique | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

7 | Process SMIL directives in XML data | ① | ② | ④ | ⑤ | ⑥ | ⑦ | ||||

7 | Red black tree sort | ① | ② | ③ | ⑤ | ⑧ | |||||

7 | Remote agent/Agent interface | ① | ② | ③ | ⑥ | ||||||

7 | Roots of a cubic polynomial | ① | ② | ③ | ④ | ⑨ | |||||

7 | Solve a Rubik's cube | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

7 | Wave function collapse | ① | ② | ④ | ⑤ | ⑦ | ⑨ | ||||

6 | CLI-based maze-game | ① | ② | ③ | ⑤ | ||||||

6 | Carmichael lambda function | ① | ② | ③ | ④ | ⑧ | |||||

6 | Convert CSV records to TSV | ① | ② | ③ | ⑨ | ||||||

6 | Create your own text control codes | ① | ② | ③ | ④ | ||||||

6 | Erdős–Woods numbers | ① | ② | ③ | ④ | ⑧ | |||||

6 | Goodstein Sequence | ① | ② | ③ | ④ | ⑧ | |||||

6 | Multiton | ① | ② | ③ | ④ | ⑦ | ⑧ | ||||

6 | OLE automation | ① | ② | ⑥ | ⑧ | O | O | ||||

6 | Posit numbers/encoding | ① | ② | ③ | ④ | ||||||

6 | Rosetta Code/List authors of task descriptions | ① | ② | ③ | ④ | ⑤ | ⑥ | ||||

6 | Sturmian word | ② | ③ | ④ | |||||||

6 | Szymański's algorithm | ① | ② | ③ | ④ | ||||||

6 | Ukkonen’s suffix tree construction | ① | ② | ③ | ⑤ | ⑥ | ⑩ | ||||

6 | Use a REST API | ① | ② | ⑥ | ⑧ | ⑩ | |||||

6 | Vidir | ① | ② | ④ | |||||||

6 | Visitor pattern | ① | ② | ③ | ④ | ⑤ | ⑧ | ||||

5 | Continued fraction convergents | ① | ② | ③ | ④ | ||||||

5 | Diophantine linear system solving | ① | ② | ⑤ | |||||||

5 | Extended Straddling Checkerboard | ① | ② | ③ | ⑧ | ||||||

5 | Generalised floating point multiplication | ① | ② | ③ | ⑥ | ||||||

5 | Number triplets game | ① | ② | ③ | ⑦ | ||||||

5 | Posit numbers/decoding | ① | ② | ③ | ④ | ||||||

5 | Sanitize user input | ① | ② | ③ | ④ | ||||||

5 | Solving coin problems | ① | ② | ③ | ⑥ | ⑦ | |||||

5 | Unicode polynomial equation | ① | ② | ③ | ⑤ | ⑥ | |||||

5 | Waveform analysis/Top and tail | ① | ② | ③ | ⑤ | ⑥ | |||||

5 | Weather routing | ① | ② | ③ | ⑤ | ⑥ | |||||

4 | 15 puzzle game in 3D | ① | ② | ⑥ | |||||||

4 | Blackjack strategy | ① | ② | ⑤ | ⑥ | ||||||

4 | Color separation | ① | ② | ||||||||

4 | Compiler/Preprocessor | ① | ② | ③ | ⑧ | ||||||

4 | Cross compilation | ① | ② | O | O | ||||||

4 | IRC gateway | ① | ② | ⑥ | |||||||

4 | Protecting Memory Secrets | ① | ② | ③ | ⑨ | ||||||

4 | Uno (card game) | ① | ② | ③ | ⑧ | ||||||

4 | WebGL rotating F | ① | ② | ③ | ⑨ | ||||||

3 | 3d turtle graphics | ① | ② | ⑨ | |||||||

3 | Elevator simulation | ① | ② |