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 Wren          ② Phix          ③ Julia         ④ Raku          ⑤ Go           
    ⑥ Perl          ⑦ Python        ⑧ Nim           ⑨ J             ⑩ C            

As of 2023-03-19T20:22:13Z :: Tasks: 1214 :: Draft Tasks:391 :: Total Tasks: 1605 :: Total Examples: 90318

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
554	Hello world/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
369	99 bottles of beer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
360	FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
345	100 doors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
301	Comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
295	Fibonacci sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
291	Factorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
290	A+B	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
284	Empty program	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
249	Loops/Infinite	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
242	Reverse a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
240	Arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
239	Ackermann function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
237	Function definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
233	Loops/For	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
224	Conditional structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
224	Loops/While	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
213	Array concatenation	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
211	Arithmetic/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
201	Repeat a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
199	Increment a numerical string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
198	Greatest common divisor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
196	Averages/Arithmetic mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
196	Even or odd	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
195	Sieve of Eratosthenes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
192	Hello world/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
191	Array length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
190	Copy a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
189	String concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
188	Binary digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
187	Sum and product of an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
186	Integer comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
185	Boolean values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Loops/Downward for	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Towers of Hanoi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
182	Character codes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
181	Apply a callback to an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
181	Hello world/Newline omission	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
181	Integer sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
179	Generic swap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
179	Rot-13	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
178	String length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
176	Empty string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
176	String case	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
176	Tokenize a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
175	Sum of a series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
174	Loops/For with a specified step	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
174	Loops/Foreach	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
174	Palindrome detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
172	Quine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
171	Loops/Break	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
170	Dot product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
167	Logical operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
166	Loops/Do-while	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
165	Filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
165	Sum of squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
163	Hailstone sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
161	Associative array/Creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Loops/N plus one half	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Remove duplicate elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Sorting algorithms/Quicksort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	Leap year	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	Sort an integer array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	Caesar cipher	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
154	System time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Generate lower case ASCII alphabet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Loop over multiple arrays simultaneously	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Luhn test of credit card numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Stack	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Higher-order functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Zero to the zero power	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	User input/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Determine if a string is numeric	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Factors of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Guess the number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	Hello world/Standard error	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
146	Sorting algorithms/Bubble sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Bitwise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Check that file exists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Create a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Primality by trial division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Read entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
144	Mutual recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	ABC problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Loops/Continue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
142	Least common multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
142	Sleep	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
141	Balanced brackets	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Count in octal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Roman numerals/Encode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Ethiopian multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	File input/output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	Day of the week	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	Happy numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	Literals/String	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	Variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
137	Date format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
137	Program termination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
136	Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	Flatten a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Compound data type	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	Literals/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Mandelbrot set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
132	Function composition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
132	Knuth shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
132	Roman numerals/Decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Loops/Nested	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	N-queens problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	String matching	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Detect division by zero	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Matrix transposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Null object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Sorting algorithms/Insertion sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Averages/Root mean square	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Count occurrences of a substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Pick random element	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Read a file line by line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Real constants and functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Return multiple values	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	Case-sensitivity of identifiers	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
126	Align columns	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
126	Anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
126	Letter frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
126	Strip a set of characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Babbage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Delete a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Binary search	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Haversine formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Look-and-say sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Matrix multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Averages/Median	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Conway's Game of Life	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	File size	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Hash from two arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Identity matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Perfect numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Input loop	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Environment variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Assertions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Call a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	String interpolation (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Classes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Find limit of recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Sierpinski triangle	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	String append	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Substring/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Arithmetic/Complex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Harshad or Niven series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Temperature conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	HTTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Pangram checker	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Variadic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Hostname	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Infinity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Arithmetic-geometric mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Bulls and cows	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Levenshtein distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Multiplication tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Search a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Anonymous recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Comma quibbling	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Formatted numeric output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Horner's rule for polynomial evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Reverse words in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Run-length encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Sum digits of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Averages/Pythagorean means	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Evaluate binomial coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	N'th	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Strip whitespace from a string/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Sum multiples of 3 and 5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	The Twelve Days of Christmas	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Accumulator factory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Ordered words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Program name	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Zig-zag matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Calculating the value of e	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Catalan numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Middle three digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Queue/Definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Sorting algorithms/Merge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	String prepend	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Combinations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Create a two-dimensional array at runtime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Exceptions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Random numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Trigonometric functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Vector products	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Arbitrary-precision integers (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Sequence of non-squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Shell one-liner	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Enumerations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Regular expressions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Short-circuit evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Sorting algorithms/Selection sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	24 game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Amicable pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Evolutionary algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Power set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Prime decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Time a function	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	Abundant, deficient and perfect number classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Gray code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Range extraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Collections	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Execute Brain****	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Map range	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Sorting algorithms/Gnome sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Y combinator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Almost prime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Hello world/Newbie	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Interactive programming (repl)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
99	Create an HTML table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Range expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Sort using a custom comparator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Hamming numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	MD5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Nth root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	One-dimensional cellular automata	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Symmetric difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Averages/Mode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	First-class functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Hofstadter Q sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Random number generator (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Show ASCII table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Sorting algorithms/Cocktail sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	String comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Address of a variable	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Entropy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Langton's ant	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Monty Hall problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Sorting algorithms/Heapsort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Catamorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Number reversal game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Tree traversal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Inheritance/Single	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	JSON	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Number names	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Sierpinski carpet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Averages/Simple moving average	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Forward difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Josephus problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Menu	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Sorting algorithms/Bogosort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Terminal control/Clear the screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	CSV data manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Cumulative standard deviation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Five weekends	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Last Friday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Repeat	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Simple windowed application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Split a character string based on change of character	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Abstract type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Compare a list of strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Greatest subsequential sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	URL decoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Box the compass	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Count in factors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Floyd's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Hello world/Line printer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Literals/Floating point	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Modular inverse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Non-decimal radices/Convert	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Playing cards	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Queue/Usage	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	Window creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Anti-primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	CSV to HTML translation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Munchausen numbers	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	Find the last Sunday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Here document	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
87	Operator precedence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Population count	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Proper divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Top rank per group	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Department numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Order two numerical lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Price fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Read a specific line from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	SEDOLs	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	Strip comments from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	URL encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Word wrap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Bitmap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Closures/Value capture	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	File modification time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Lucas-Lehmer test	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	CRC-32	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Count the coins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Find common directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Find the missing permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Jump anywhere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Knapsack problem/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Multifactorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Pythagorean triples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Terminal control/Ringing the terminal bell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Dragon curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Dynamic variable names	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
83	Introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Jensen's Device	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Sockets	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Spiral matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Concurrent computing	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Fibonacci n-step number sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Kaprekar numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Keyboard input/Obtain a Y or N response	①	②	③	④	⑤	⑥	⑦	⑧		⑩
82	Long multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Man or boy test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Priority queue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Show the epoch	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Sorting algorithms/Counting sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	100 prisoners	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	15 puzzle game	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	Angle difference between two bearings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Animation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Call a foreign-language function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Call an object method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Empty directory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Linear congruential generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Monte Carlo methods	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Soundex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Web scraping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	XML/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Gamma function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Hello world/Web server	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Magic squares of odd order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Old lady swallowed a fly	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Rock-paper-scissors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Sequence of primes by trial division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Singly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Sorting algorithms/Comb sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Special characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Take notes on the command line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Convert seconds to compound duration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Currying	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Date manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Equilibrium index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Guess the number/With feedback (player)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Phrase reversals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	SHA-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Semordnilap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Sudoku	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Thue-Morse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Unicode variable names	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Write entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Additive primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Calendar	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Execute HQ9+	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Flow-control structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	List comprehensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Sort disjoint sublist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Averages/Mean angle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Combinations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Enforced immutability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Non-decimal radices/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Pernicious numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Read a configuration file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Rep-string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Vigenère cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	AKS test for primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Benford's law	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Draw a sphere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Four bit adder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Fractal tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Quaternion type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Write float arrays to a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Multiple distinct objects	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Roots of unity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	SHA-256	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Sort three variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Unix/ls	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Van der Corput sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Attractive numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Barnsley fern	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Bitmap/Bresenham's line algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Damm algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Exceptions/Catch an exception thrown in a nested call	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Horizontal sundial calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	I before E except after C	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Largest int from concatenated ints	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Sorting algorithms/Stooge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Special variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Stair-climbing puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Constrained random points on a circle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	General FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Longest common subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Maze generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Nested function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Parsing/RPN calculator algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Square but not cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Stern-Brocot sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Arithmetic/Rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Catalan numbers/Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Chinese remainder theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Exponentiation order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Fast Fourier transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	IBAN	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Jewels and stones	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Named parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Numerical integration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Polymorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Probabilistic choice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Runtime evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
72	Strip control codes and extended characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Yin and yang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Zeckendorf number representation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Amb	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Closest-pair problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Compile-time calculation	①	②	③	④	⑤	⑥	O	⑧	⑨	⑩
71	Continued fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Fork	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Get system command output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Self-describing numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Semiprime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Sorting algorithms/Pancake sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Text processing/Max licenses in use	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Trabb Pardo–Knuth algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Van Eck sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Variable size/Get	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Dutch national flag problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Euler method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Gapful numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Host introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Isqrt (integer square root) of X	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Memory allocation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Morse code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Narcissistic decimal number	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	Singly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Word frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Abundant odd numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Best shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Binary strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Circles of given radius through two points	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Euler's sum of powers conjecture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Extract file extension	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	ISBN13 check digit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	One of n lines in a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	RPG attributes generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Roots of a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Sort stability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Write language name in 3D ASCII	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	4-rings or 4-squares puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Determine if a string is collapsible	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Modular exponentiation	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	Tau function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	XML/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	9 billion names of God the integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Animate a pendulum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Cholesky decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Documentation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Emirp primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Factors of a Mersenne number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Integer overflow	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Magic 8-ball	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	McNuggets problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Mouse position	①	②	③	④	⑤	⑥	⑦	⑧		⑩
67	Optional parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Plot coordinate pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Runge-Kutta method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Subleq	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Two sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Undefined values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Base64 decode data	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Cartesian product of two or more lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Globally replace text in several files	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	HTTPS	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Hofstadter-Conway $10,000 sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Inheritance/Multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Leonardo numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Long year	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Non-decimal radices/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Reduced row echelon form	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
65	Determine if a string has all the same characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Draw a clock	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Draw a cuboid	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Draw a pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Longest common prefix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Remove vowels from a string	①	②	③	④	⑤	⑥	⑦	⑧		⑩
65	Roots of a quadratic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Smith numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Test a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Tic-tac-toe	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Two identical strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Vector	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Arithmetic evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Averages/Mean time of day	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Bitmap/Write a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	CUSIP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Cantor set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Chinese zodiac	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Copy stdin to stdout	①	②	③	④	⑤	⑥	⑦	⑧		⑩
64	Knapsack problem/Continuous	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Ludic numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Miller–Rabin primality test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Quickselect algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	2048	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	24 game/Solve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Base64 encode data	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	DNS query	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Generator/Exponential	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Huffman coding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	JortSort	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	Ternary logic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Unicode strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Farey sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Knapsack problem/Unbounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Mad Libs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Pascal matrix generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Stem-and-leaf plot	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Truncatable primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Add a variable to a class instance at runtime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
61	Brownian tree	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	O
61	Disarium numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Fusc sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Kernighans large earthquake problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Longest common substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Random number generator (device)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Sattolo cycle	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	Truncate a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	User input/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Call a function in a shared library	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Dinesman's multiple-dwelling problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Doubly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	FASTA format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Fibonacci word	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Grayscale image	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Hash join	①	②	③	④	⑤	⑥	⑦	⑧	⑨
60	Keyboard input/Keypress check	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	LZW compression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Left factorials	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Matrix-exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Pointers and references	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Tau number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Terminal control/Coloured text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Unbias a random generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Bernoulli numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Deal cards for FreeCell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Dijkstra's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Discordian date	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Maximum triangle path sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Multisplit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Nim game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Odd word problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Runtime evaluation/In an environment	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
59	Singleton	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
59	Words containing "the" substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Associative array/Merging	①	②	③	④	⑤	⑥	⑦	⑧	⑨
58	Convert decimal number to rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Delegates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Forest fire	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Iterated digits squaring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Loops/Increment loop index within loop body	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Loops/With multiple ranges	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Perfect shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Sorting algorithms/Permutation sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Stack traces	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Sum of divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Sum of first n cubes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Abbreviations, automatic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Archimedean spiral	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Chaos game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Find the intersection of two lines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Handle a signal	①	②	③	④	⑤	⑥	⑦	⑧		⑩
57	Inverted syntax	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Largest proper divisor of n	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Primality by Wilson's theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Rosetta Code/Rank languages by popularity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Days between dates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Determine if a string has all unique characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Egyptian division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Extreme floating point values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	First-class functions/Use numbers analogously	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
56	Holidays related to Easter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Modulinos	①	②	③	④	⑤	⑥	⑦		⑨	⑩
56	Naming conventions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Password generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Perfect totient numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Pig the dice game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Shoelace formula for polygonal area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Sort numbers lexicographically	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Statistics/Basic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Validate International Securities Identification Number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	XML/XPath	①	②	③	④	⑤	⑥	⑦	⑧		⑩
55	Greyscale bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Move-to-front algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Non-continuous subsequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Rate counter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Search a list of records	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Send email	①	②	③	④	⑤	⑥	⑦	⑧	O	⑩
55	Seven-sided dice from five-sided dice	①	②		④	⑤	⑥	⑦	⑧	⑨	⑩
55	Strip block comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	⑩
55	XML/DOM serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Bell numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Code Golf: Code Golf	①	②	③	④	⑤	⑥	⑦		⑨
54	Extensible prime generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Heronian triangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Jaro similarity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Kronecker product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Longest increasing subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Polynomial regression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Recaman's sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Strange plus numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Text processing/2	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Wireworld	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Zebra puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Average loop length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Determine if a string is squeezable	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/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Fractran	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Gaussian elimination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Halt and catch fire	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Hofstadter Figure-Figure sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Longest string challenge	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	Sierpinski triangle/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Smallest square that begins with n	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Spinning rod animation/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Water collected between towers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Bioinformatics/base count	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Compare length of two strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Convex hull	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Determinant and permanent	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Doubly-linked list/Traversal	①	②	③	④	⑤		⑦	⑧	⑨	⑩
52	Execute a Markov 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	Generate Chess960 starting position	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Metaprogramming	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Text processing/1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	The Name Game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Totient function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Aliquot sequence classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Append a record to the end of a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Musical scale	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Respond to an unknown method call	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
51	Stable marriage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Taxicab numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Text between	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Ulam spiral (for primes)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	21 game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	ABC words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Bitmap/Flood fill	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Chowla numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Colour bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Digital root/Multiplicative digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Echo server	①	②	③	④	⑤	⑥	⑦	⑧		⑩
50	Elementary cellular automaton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Floyd-Warshall algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	History variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
50	Image noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Last letter-first letter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Mertens function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Munching squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Polymorphic copy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Polynomial long division	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 of the digits of n is substring of n	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	Abbreviations, easy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Colour pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Doubly-linked list/Definition	①	②	③	④	⑤		⑦	⑧	⑨	⑩
49	Element-wise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Hilbert curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	MAC vendor lookup	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Numbers divisible by their individual digits, but not by the product of their digits.	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	OpenGL	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Send an unknown method call	①	②	③	④	⑤	⑥	⑦	O	⑨	O
49	Set consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Sorting algorithms/Radix sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	UTF-8 encode and decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Verify distribution uniformity/Naive	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Active object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Approximate equality	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Casting out nines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Determine if only one instance is running	①	②	③	④	⑤	⑥	⑦	⑧		⑩
48	GUI/Maximum window dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Start from a main routine	①	②	③	④	⑤	⑥	O	⑧	⑨	⑩
48	Strange numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Substitution cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Variable size/Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Bitmap/Midpoint circle algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Bitmap/Read a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Color of a screen pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Currency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Deepcopy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Knapsack problem/Bounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Parsing/Shunting-yard algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Permutations/Derangements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Problem of Apollonius	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Sorting Algorithms/Circle Sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Speech synthesis	①	②	③	④	⑤	⑥	⑦	⑧		⑩
47	Sum to 100	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Terminal control/Dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Twelve statements	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	Base 16 numbers needing a to f	①	②	③	④	⑤	⑥	⑦	⑧
46	Bulls and cows/Player	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	Continued fraction/Arithmetic/Construct from rational number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Factorions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Feigenbaum constant calculation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Find words which contains more than 3 e vowels	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Fivenum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Flipping bits game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Keyboard input/Flush the keyboard buffer	①	②	③	④	⑤	⑥	⑦	⑧		⑩
46	Loops/Wrong ranges	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 by swapping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Rosetta Code/Count examples	①	②	③	④	⑤	⑥	⑦	⑧	⑨
46	Secure temporary file	①	②	③	④	⑤	⑥	⑦	⑧		⑩
46	Shift list elements to left by 3	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Sort a list of object identifiers	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	Special divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Subtractive generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Sutherland-Hodgman polygon clipping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Truth table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Atomic updates	①	②	③	④	⑤	⑥	⑦	⑧	O	⑩
45	Brazilian numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Coprimes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Display a linear combination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	File extension is in extensions list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Input/Output for pairs of 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	Nice primes	①	②	③	④	⑤	⑥		⑧	⑨	⑩
45	Palindrome dates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Product of divisors	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	Sailors, coconuts and a monkey problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Yellowstone sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Balanced ternary	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Brace expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Carmichael 3 strong pseudoprimes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Combinations and permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Count how many vowels and consonants occur in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Cramer's rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Cycle detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Digit fifth powers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
44	Euler's identity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Find prime numbers of the form n*n*n+2	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Hickerson series of almost integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Humble numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Idiomatically determine all the lowercase and uppercase letters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Input/Output for lines of text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Julia set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Lah numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Largest number divisible by its digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Long 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	Primorial numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Safe primes and unsafe primes	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	⑩
44	Voronoi diagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Calendar - for "REAL" programmers	①	②	③	④	⑤	⑥	O	⑧	⑨	⑩
43	Find prime n such that reversed n is also prime	①	②	③	④	⑤	⑥	⑦	⑧		⑩
43	Find square difference	①	②	③	④	⑤	⑥	⑦		⑨	⑩
43	Find words which contains all the vowels	①	②	③	④	⑤	⑥	⑦	⑧	⑨
43	Four is magic	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	Inverted index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Kahan summation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Matrix with two diagonals	①	②	③	④	⑤	⑥	⑦		⑨	⑩
43	Odd and square numbers	①	②	③	④	⑤	⑥	⑦		⑨
43	Permutations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Prime conspiracy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Pythagorean quadruples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Sequence: smallest number with exactly n divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Table creation/Postal addresses	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Terminal control/Hiding the cursor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Unique characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Variable-length quantity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Cheryl's birthday	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Extra primes	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	Find the intersection of a line with a plane	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Function prototype	①	②	③	④	⑤	⑥	O	⑧	⑨	⑩
42	Knuth's algorithm S	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Magic squares of doubly even order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Mersenne primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
42	Parallel calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Pathological floating point problems	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Penney's game	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	Scope/Function names and labels	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Statistics/Normal distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Topswops	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Triplet of three numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Bitwise IO	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Create a file on magnetic tape	①	②	③	④	⑤		⑦	⑧		⑩
41	Cuban primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Find palindromic numbers in both binary and ternary bases	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Find words whose first and last three letters are equal	①	②	③	④	⑤	⑥	⑦	⑧	⑨
41	Implicit type conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Integer roots	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Maze solving	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Metered concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Parametric polymorphism	①	②	③	④	⑤	O	O	⑧	⑨	⑩
41	Permutation test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Primes whose sum of digits is 25	①	②	③	④	⑤	⑥	⑦	⑧		⑩
41	Pseudo-random numbers/Middle-square method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	QR decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Ray-casting algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Sorting algorithms/Strand sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Sudan function	①	②	③	④	⑤	⑥	⑦		⑨	⑩
41	Test integerness	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Vampire number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Arithmetic-geometric mean/Calculate Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Ascending primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
40	Break OO privacy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
40	Church numerals	①	②	③	④	⑤	⑥	⑦	⑧	⑨
40	Cousin primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Dice game probabilities	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Frobenius numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Koch curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	LU decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Lychrel numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
40	Multiple regression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Numbers with prime digits whose sum is 13	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Old Russian measure of length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Parsing/RPN to infix conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Pythagoras tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Sequence: smallest number greater than previous term with exactly n divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Solve the no connection puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	10001th prime	①	②	③	④	⑤	⑥	⑦		⑨	⑩
39	Alternade words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Apply a digital filter (direct form II transposed)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Check output device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Constrained genericity	①	②	③	④	⑤	O	O	⑧	⑨	O
39	Draw a rotating cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Events	①	②	③	④	⑤	⑥	⑦	⑧		⑩
39	Find words with alternating vowels and consonants	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Length of an arc between two angles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Longest common suffix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Metronome	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Minesweeper game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Minimum number of cells after, before, above and below NxN squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Multi-dimensional array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Mutex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Numerical integration/Gauss-Legendre Quadrature	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Order disjoint list items	①	②	③	④	⑤	⑥	⑦	⑧	⑨
39	Pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	RSA code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Sort the letters of string in alphabetical order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Square-free integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Terminal control/Unicode output	①	②	③	④	⑤	⑥	⑦	⑧		⑩
38	Algebraic data types	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
38	Bitmap/Bézier curves/Cubic	①	②	③	④	⑤		⑦	⑧	⑨	⑩
38	Change e letters to i in words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Circular primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Conjugate transpose	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Create an object at a given address	①	②	③	④	⑤	⑥	O	⑧	⑨	⑩
38	Determine if two triangles overlap	①	②	③	④	⑤	⑥	⑦	⑧		⑩
38	Eban numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Entropy/Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Machine code	①	②	③	④	⑤		⑦	⑧		⑩
38	Multiline shebang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Numbers whose binary and ternary digit sums are prime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Object serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
38	Pentagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Show the (decimal) value of a number of 1s appended with a 3, then squared	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Smarandache prime-digital sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Strong and weak primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Subset sum problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Sum of elements below main diagonal of matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Word wheel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Zumkeller numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
37	AVL tree	①	②	③	④	⑤		⑦	⑧	⑨	⑩
37	Bacon cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Chaocipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Diversity prediction theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Find first and last set bit of a long integer	①	②	③	④	⑤	⑥	⑦		⑨	⑩
37	Greedy algorithm for Egyptian fractions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	MD4	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Negative base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Numbers in base-16 representation that cannot be written with decimal digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Ordered partitions	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	Polyspiral	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	RIPEMD-160	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Steady squares	①	②	③	④	⑤	⑥	⑦		⑨	⑩
37	Strange unique prime triplets	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Successive prime differences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Superellipse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Faulhaber's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	First power of 2 that has leading decimal digits of 12	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Galton box animation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Gauss-Jordan matrix inversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Modular arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Numbers with equal rises and falls	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	Perlin noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Poker hand analyser	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Sexy primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Terminal control/Preserve screen	①	②	③	④	⑤	⑥	⑦	⑧		⑩
36	Textonyms	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Twin primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	URL parser	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Angles (geometric), normalization and conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Bitmap/Bézier curves/Quadratic	①	②	③	④	⑤		⑦	⑧	⑨	⑩
35	Calkin-Wilf sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Canonicalize CIDR	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Check input device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧	O	⑩
35	Color wheel	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Death Star	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Decimal floating point number to binary	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	FTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Find first missing positive	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Minimum positive multiple in base 10 using only 0 and 1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Motzkin numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Möbius function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Numbers with same digit set in base 10 and base 16	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Parameterized SQL statement	①	②	③	④	⑤	⑥	⑦	⑧	O	⑩
35	Parse command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Partition an integer x into n primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Peano curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Positive decimal integers with the digit 1 occurring exactly twice	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Reflection/List properties	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
35	Rosetta Code/Find unimplemented tasks	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Set puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Simple database	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Solve a Hidato puzzle	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Sorting algorithms/Cycle sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Terminal control/Cursor movement	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Topic variable	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
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		⑦	⑧	⑨	⑩
35	Weird numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Word break problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Zhang-Suen thinning algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Bitmap/Histogram	①	②	③	④	⑤		⑦	⑧	⑨	⑩
34	Burrows–Wheeler transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Chebyshev coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Chemical calculator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Decision tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Esthetic numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Executable library	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Faulhaber's formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Find if a point is within a triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Find words which contain the most consonants	①	②	③	④	⑤	⑥	⑦	⑧	⑨
34	First 9 prime Fibonacci number	①	②	③	④	⑤	⑥	⑦		⑨	⑩
34	Jacobi symbol	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Law of cosines - triples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Long literals, with continuations	①	②	③	④	⑤	⑥	⑦	⑧	⑨
34	Magnanimous numbers	①	②	③	④	⑤	⑥		⑧	⑨	⑩
34	Mayan numerals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Mian-Chowla sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Multiplicative order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Parallel brute force	①	②	③	④	⑤	⑥	⑦	⑧		⑩
34	Pierpont primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Straddling checkerboard	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Wieferich primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Write to Windows event log	①	②	③	④	⑤	⑥	⑦			⑩
34	Xiaolin Wu's line algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Abelian sandpile model	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Bin given limits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Bitcoin/address validation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Chat server	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Checkpoint synchronization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Common list elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨
33	Distinct power numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Doomsday rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Fairshare between two and more	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Largest prime factor	①	②	③	④	⑤	⑥	⑦		⑨	⑩
33	Maximum difference between adjacent elements of list	①	②	③	④	⑤	⑥	⑦	⑧	⑨
33	Minimum numbers of three lists	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Pragmatic directives	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Primes with digits in nondecreasing order	①	②	③	④	⑤	⑥	⑦	⑧	⑨
33	Random Latin squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Range consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Resistor mesh	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Set of real numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Sum and product puzzle	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Summarize primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Super-d numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Unique characters in each string	①	②	③	④	⑤	⑥	⑦	⑧
33	Verify distribution uniformity/Chi-squared test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Words from neighbour ones	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Common sorted list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Deconvolution/1D	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Execute SNUSP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Find squares n where n+1 is prime	①	②	③	④	⑤	⑥	⑦		⑨	⑩
32	Finite state machine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Generate random chess position	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Generate random numbers without repeating a value	①	②	③	④	⑤	⑥	⑦	⑧
32	Go Fish	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	HTTPS/Authenticated	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	Hunt the Wumpus	①	②	③	④	⑤	⑥	⑦	⑧
32	Keyboard macros	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	Memory layout of a data structure	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Monads/Maybe monad	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Neighbour primes	①	②	③	④	⑤	⑥	⑦	⑧
32	Nonoblock	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Numbers in base 10 that are palindromic in bases 2, 4, and 16	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Numeric error propagation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Rosetta Code/Fix code tags	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	State name puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Stirling numbers of the second kind	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Video display modes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
32	Window creation/X11	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	A* search algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Arena storage pool	①	②	③	④	⑤		⑦	⑧	⑨	⑩
31	Arithmetic numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Bioinformatics/Sequence mutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Biorhythms	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Check Machin-like formulas	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Compiler/virtual machine interpreter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Day of the week of Christmas and New Year	①	②	③	④		⑥	⑦		⑨	⑩
31	Exactly three adjacent 3 in lists	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Find minimum number of coins that make a given value	①	②	③	④	⑤	⑥	⑦	⑧
31	First class environments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	First perfect square in base n with n unique digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Increasing gaps between consecutive Niven numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Last list item	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	N-smooth numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Plasma effect	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Product of min and max prime factors	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Ramsey's theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Stirling numbers of the first kind	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Stream merge	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Sylvester's sequence	①	②	③	④	⑤	⑥	⑦	⑧
31	The ISAAC cipher	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
30	Birthday problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	De Bruijn sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨
30	Fermat numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Formal power series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Harmonic series	①	②	③	④	⑤	⑥	⑦	⑧	⑨
30	Honeycombs	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
30	Jacobsthal numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
30	Kronecker product based fractals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Largest five adjacent number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Natural sorting	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Next highest int from digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Reflection/List methods	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
30	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
30	Sierpinski pentagon	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Sorting algorithms/Cocktail sort with shifting bounds	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Sum of primes in odd positions is prime	①	②	③	④	⑤	⑥		⑧	⑨	⑩
30	Table creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Teacup rim text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Tonelli-Shanks algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Active Directory/Connect	①	②	③	④	⑤	⑥	⑦			⑩
29	Append numbers at same position in strings	①	②	③	④	⑤	⑥	⑦			⑩
29	Audio alarm	①	②	③	④	⑤		⑦	⑧
29	Cut a rectangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Find largest left truncatable prime in a given base	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Fixed length records	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Fraction reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Legendre prime counting function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Merge and aggregate datasets	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Minimum multiple of m where digital sum equals m	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Monads/List monad	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Mosaic matrix	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Odd words	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Play recorded sounds	①	②	③		⑤		⑦	⑧		⑩
29	Prime numbers which contain 123	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Pseudo-random numbers/PCG32	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Safe addition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Same fringe	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Sequence of primorial primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Shortest common supersequence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	Sleeping Beauty problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Snake and ladder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Solve a Holy Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Sum of square and cube digits of an integer are primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Summation of primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Sunflower fractal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Superpermutation minimisation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Thiele's interpolation formula	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	Almkvist-Giullera formula for pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Card shuffles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Changeable words	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	Cistercian numerals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Continued fraction/Arithmetic/G(matrix ng, continued fraction n)	①	②	③	④	⑤		⑦	⑧	⑨	⑩
28	Coprime triplets	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Deming's funnel	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Descending primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	Distributed programming	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Elliptic curve arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Exponentiation with infix operators in (or operating on) the base	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Find adjacent primes which differ by a square integer	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	Idiomatically determine all the characters that can be used for symbols	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Image convolution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Intersecting number wheels	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Nautical bell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Numeric separator syntax	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Order by pair comparisons	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Palindromic gapful numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Paraffins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Piprimes	①	②	③	④	⑤	⑥		⑧	⑨	⑩
28	Playfair cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Sierpinski arrowhead curve	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Spelling of ordinal numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Total circles area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	UPC	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Welch's t-test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Yahoo! search interface	①	②	③	④	⑤	⑥	⑦	⑧
27	Base58Check encoding	①	②	③	④	⑤	⑥	⑦	⑧
27	Deceptive numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
27	Erdős-primes	①	②	③	④	⑤	⑥		⑧	⑨
27	Four sides of square	①	②	③	④	⑤	⑥	⑦		⑨	⑩
27	Function frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	K-means++ clustering	①	②	③	④	⑤		⑦	⑧	⑨	⑩
27	Kolakoski sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Linux CPU utilization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Make a backup file	①	②	③	④	⑤	⑥	⑦	⑧
27	Matrix chain multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Mind boggling card trick	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Odd squarefree semiprimes	①	②	③	④	⑤	⑥	⑦	⑧
27	Padovan sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Parse an IP Address	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Percolation/Mean run density	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Permutations/Rank of a permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Permuted multiples	①	②	③	④	⑤	⑥		⑧	⑨	⑩
27	Prime triplets	①	②	③	④	⑤	⑥	⑦	⑧
27	Prime words	①	②	③	④	⑤	⑥	⑦	⑧	⑨
27	RCRPG	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Ramer-Douglas-Peucker line simplification	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Self numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Simulate input/Keyboard	①	②		④	⑤	⑥	⑦	⑧		⑩
27	Smallest multiple	①	②	③	④	⑤	⑥	⑦
27	Smallest power of 6 whose decimal expansion contains n	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Snake	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Special neighbor primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	15 puzzle solver	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Commatizing numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Consecutive primes with ascending or descending differences	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Cullen and Woodall numbers	①	②	③	④	⑤	⑥	⑦		⑨
26	File size distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Hough transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Kosaraju	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	List rooted trees	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Lucky and even lucky numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Magic squares of singly even order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Markov chain text generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Numbers whose count of divisors is prime	①	②	③	④	⑤	⑥		⑧	⑨
26	Orbital elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Palindromic primes	①	②	③	④	⑤	⑥	⑦	⑧
26	Quadrat special primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Rare numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Reverse the gender of a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Ulam numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	ASCII art diagram converter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Abelian sandpile model/Identity	①	②	③	④	⑤		⑦	⑧	⑨
25	Assertions in design by contract	①	②	③	④	⑤	⑥		⑧	⑨
25	Compiler/code generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Concatenate two primes is also prime	①	②	③	④	⑤	⑥		⑧
25	Create an object/Native demonstration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
25	Curzon numbers	①	②	③	④	⑤	⑥	⑦		⑨
25	EKG sequence convergence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Elementary cellular automaton/Random number generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Getting the number of decimal places	①	②	③	④	⑤	⑥	⑦			⑩
25	Index finite lists of positive integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
25	Joystick position	①	②	③	④	⑤		⑦			⑩
25	Longest substrings without repeating characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Mastermind	①	②	③	④	⑤	⑥	⑦	⑧
25	Next special primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Palindromic primes in base 16	①	②	③	④	⑤	⑥		⑧
25	Pseudo-random numbers/Xorshift star	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Record sound	①	②	③	④	⑤		⑦	⑧		⑩
25	Reflection/Get source	①	②	③	④	⑤	⑥	⑦	⑧	⑨	O
25	SOAP	①	②	③	④	⑤	⑥	⑦			⑩
25	Sine wave	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Solve a Hopido puzzle	①	②	③	④	⑤	⑥	⑦	⑧
25	Solve a Numbrix puzzle	①	②	③	④	⑤	⑥	⑦	⑧
25	Sum data type	①	②	③	④	⑤	⑥		⑧		⑩
25	Sum of two adjacent numbers are primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
25	Zeckendorf arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Active Directory/Search for a user	①	②	③	④	⑤	⑥	⑦			⑩
24	Addition chains	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Bilinear interpolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Compiler/syntax analyzer	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
24	Euler's constant 0.5772...	①	②	③	④		⑥		⑧	⑨	⑩
24	Find duplicate files	①	②	③	④	⑤	⑥	⑦	⑧
24	Levenshtein distance/Alignment	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Main step of GOST 28147-89	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Native shebang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Perceptron	①	②	③	④	⑤		⑦	⑧
24	Print debugging statement	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Pseudo-random numbers/Splitmix64	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Selectively replace multiple instances of a character within a string	①	②	③	④	⑤	⑥	⑦		⑨
24	Sequence: nth number with exactly n divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Sokoban	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Solve triangle solitare puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
24	The sieve of Sundaram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Untrusted environment	①	②		④	⑤	⑥		⑧	⑨	⑩
24	Vigenère cipher/Cryptanalysis	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Brilliant numbers	①	②	③	④	⑤	⑥	⑦		⑨
23	Cubic special primes	①	②	③	④	⑤	⑥	⑦	⑧
23	Cyclops numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Knuth's power tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Latin Squares in reduced form	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Line circle intersection	①	②	③	④	⑤	⑥		⑧		⑩
23	Median filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Metallic ratios	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	N-body problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Names to numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Nested templated data	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Nonogram solver	①	②	③	④	⑤	⑥	⑦	⑧
23	Permutations with some identical elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Pig the dice game/Player	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Polynomial synthetic division	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Primes whose first and last number is 3	①	②	③	④	⑤	⑥		⑧		⑩
23	Sierpinski curve	①	②	③	④	⑤	⑥	⑦	⑧
23	Singly-linked list/Element removal	①	②	③	④	⑤		⑦	⑧		⑩
23	Substring primes	①	②	③	④	⑤	⑥		⑧
23	Useless instructions	①	②	③	④	⑤	⑥		⑧	⑨	⑩
23	Variable declaration reset	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Vibrating rectangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Vogel's approximation method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Wilson primes of order n	①	②	③	④	⑤	⑥		⑧
22	Bitcoin/public point to address	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Collect and sort square numbers in ascending order from three lists	①	②	③	④	⑤	⑥	⑦
22	Colorful numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Data Encryption Standard	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Draw pixel 2	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Eertree	①	②	③	④	⑤	⑥	⑦	⑧
22	Elementary cellular automaton/Infinite length	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Juggler sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Largest product in a grid	①	②	③	④	⑤	⑥	⑦		⑨
22	Matrix digital rain	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Monads/Writer monad	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Montgomery reduction	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Own digits power sum	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Padovan n-step number sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Peaceful chess queen armies	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Practical numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Primes which contain only one odd digit	①	②	③	④	⑤	⑥		⑧
22	Print itself	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Pseudo-random numbers/Combined recursive generator MRG32k3a	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Riordan numbers	①	②	③	④		⑥	⑦		⑨
22	Selective file copy	①	②	③	④	⑤	⑥		⑧	⑨
22	Simulate input/Mouse	①	②	③	④	⑤		⑦			⑩
22	Soloway's recurring rainfall	①	②	③	④		⑥	⑦		⑨	⑩
22	Special factorials	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Window management	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Air mass	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
21	Compare sorting algorithms' performance	①	②	③	④	⑤		⑦	⑧	⑨	⑩
21	Cyclotomic polynomial	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Idoneal numbers	①	②		④	⑤	⑥	⑦		⑨
21	Imaginary base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Jaro-Winkler distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Just in time processing on a character stream	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	K-d tree	①	②	③	④	⑤		⑦	⑧	⑨	⑩
21	Klarner-Rado sequence	①	②	③	④		⑥	⑦		⑨	⑩
21	Largest difference between adjacent primes	①	②	③	④	⑤	⑥	⑦			⑩
21	Logistic curve fitting in epidemiology	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Nimber arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Pancake numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Percolation/Site percolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Primes - allocate descendants to their ancestors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Quoting constructs	①	②	③	④	⑤	⑥		⑧	⑨
21	Readline interface	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Separate the house number from the street name	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Smallest numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Sort primes from list to a list	①	②	③	④	⑤	⑥	⑦		⑨
21	Special pythagorean triplet	①	②	③	④	⑤	⑥	⑦	⑧
21	Transportation problem	①	②	③	④	⑤	⑥		⑧	⑨
21	Word ladder	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Wordle comparison	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Anadromes	①	②	③	④		⑥			⑨
20	Color quantization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Compiler/AST interpreter	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
20	Continued fraction/Arithmetic/G(matrix ng, continued fraction n1, continued fraction n2)	①	②	③	④	⑤		⑦	⑧		⑩
20	Determine sentence type	①	②	③	④	⑤	⑥	⑦
20	Factorial primes	①	②	③	④		⑥	⑦		⑨
20	HTTPS/Client-authenticated	①	②	③	④	⑤	⑥	⑦	⑧		O
20	Largest palindrome product	①	②	③	④	⑤	⑥	⑦
20	Magic constant	①	②	③	④	⑤	⑥	⑦		⑨
20	Minimum primes	①	②	③	④	⑤	⑥		⑧		⑩
20	Most frequent k chars distance	①	②		④	⑤	⑥	⑦	⑧	⑨
20	P-value correction	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Percolation/Mean cluster density	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	SQL-based authentication	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Safe and Sophie Germain primes	①	②	③	④	⑤	⑥	⑦		⑨
20	Self-hosting compiler	①	②	O	④	⑤		⑦	⑧	⑨
20	Sierpinski square curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Square root by hand	①	②	③	④	⑤	⑥		⑧	⑨
20	Terminal control/Positional read	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Two's complement	①	②	③	④		⑥			⑨	⑩
20	Word search	①	②	③	④	⑤	⑥	⑦	⑧	⑨
19	Aspect oriented programming	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Bitmap/Read an image through a pipe	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Chernick's Carmichael numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Code segment unload	①	②	③	④	⑤	⑥	⑦
19	Find URI in text	①	②	③	④	⑤	⑥
19	Free polyominoes enumeration	①	②	③		⑤	⑥	⑦	⑧	⑨
19	Goldbach's comet	①	②	③	④		⑥	⑦		⑨
19	Honaker primes	①	②	③	④		⑥	⑦		⑨
19	Long stairs	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Numbers which are the cube roots of the product of their proper divisors	①	②		④	⑤	⑥	⑦		⑨
19	Periodic table	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Prime numbers p for which the sum of primes less than or equal to p is prime	①	②	③	④	⑤	⑥		⑧	⑨
19	Prime triangle	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Proof	①	②		④	⑤		O	⑧	⑨	O
19	SHA-256 Merkle tree	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Simulated annealing	①	②	③	④	⑤	⑥		⑧	⑨	⑩
19	Tarjan	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Two bullet roulette	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	VList	①	②	③	④	⑤			⑧	⑨	⑩
19	XML validation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Banker's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Bitmap/PPM conversion through a pipe	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Conjugate a Latin verb	①	②	③	④	⑤	⑥	⑦	⑧
18	Fortunate numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Giuga numbers	①	②	③	④	⑤	⑥	⑦		⑨
18	Gradient descent	①	②	③	④	⑤	⑥		⑧	⑨
18	Longest palindromic substrings	①	②	③	④	⑤	⑥	⑦	⑧
18	Minimal steps down to 1	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Modified random distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	NYSIIS	①	②	③	④	⑤	⑥	⑦	⑧
18	Non-transitive dice	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Numerical integration/Adaptive Simpson's method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Pandigital prime	①	②	③	④	⑤	⑥
18	Particle swarm optimization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Penrose tiling	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Percolation/Bond percolation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Ramanujan's constant	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Rendezvous	①	②	③	④	⑤		⑦	⑧	O	⑩
18	Retrieve and search chat history	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Safe mode	①	②		④	⑤	⑥
18	Suffix tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Tree from nesting levels	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Achilles numbers	①	②	③	④	⑤	⑥	⑦		⑨
17	Bioinformatics/Subsequence	①	②	③	④	⑤	⑥	⑦	⑧
17	Camel case and snake case	①	②	③	④		⑥	⑦
17	Canny edge detector	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Distribution of 0 digits in factorial series	①	②	③	④	⑤	⑥	⑦	⑧
17	Four is the number of letters in the ...	①	②	③	④	⑤	⑥	⑦	⑧		⑩
17	Geohash	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Geometric algebra	①	②	③	④	⑤		⑦	⑧	⑨
17	Overloaded operators	①	②	③	④		⑥		⑧
17	Pseudorandom number generator image	①	②	③	④	⑤	⑥		⑧
17	Sorting algorithms/Tree sort on a linked list	①	②	③		⑤			⑧	⑨	⑩
17	Three word location	①	②	③	④	⑤	⑥		⑧	⑨	⑩
17	Topological sort/Extracted top item	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
16	Binary coded decimal	①	②	③	④					⑨
16	De Polignac numbers	①	②		④		⑥	⑦		⑨
16	Hex words	①	②	③	④		⑥	⑦		⑨
16	Interactive help	①	②	③	④	⑤	⑥		⑧
16	Meissel–Mertens constant	①	②	③	④	⑤	⑥	⑦		⑨
16	OpenWebNet password	①	②	③	④	⑤	⑥	⑦	⑧
16	Pentomino tiling	①	②	③	④	⑤	⑥	⑦	⑧
16	Pisano period	①	②	③	④	⑤	⑥	⑦	⑧
16	Polynomial derivative	①	②	③	④	⑤	⑥			⑨
16	Railway circuit	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Rhonda numbers	①	②	③	④	⑤	⑥			⑨
16	Rodrigues’ rotation formula	①	②	③	④	⑤	⑥		⑧		⑩
16	Run as a daemon or service	①	②		④	⑤	⑥	⑦	⑧		⑩
16	Ruth-Aaron numbers	①	②	③	④	⑤	⑥			⑨
16	Sphenic numbers	①	②		④	⑤		⑦		⑨
16	Text completion	①	②	③	④	⑤	⑥		⑧
16	Unit testing	①	②	③	④	⑤			⑧
15	Composite numbers k with no single digit factors whose factors are all substrings of k	①	②	③	④	⑤	⑥	⑦		⑨
15	Count the coins/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Curve that touches three points	①	②	③	④	⑤	⑥		⑧	⑨
15	Duffinian numbers	①	②	③	④	⑤	⑥			⑨
15	Earliest difference between prime gaps	①	②	③	④	⑤	⑥	⑦		⑨
15	Euclid-Mullin sequence	①	②	③	④		⑥	⑦
15	Factorial base numbers indexing permutations of a collection	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Functional coverage tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Gotchas	①	②	③	④		⑥			⑨	⑩
15	Inconsummate numbers in base 10	①	②		④		⑥	⑦		⑨
15	Minkowski question-mark function	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Multi-base primes	①	②	③	④	⑤	⑥		⑧
15	One-time pad	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Repunit primes	①	②	③	④	⑤	⑥	⑦
15	Set right-adjacent bits	①	②	③	④	⑤	⑥	⑦		⑨
15	Tetris	①	②	③		⑤	⑥	⑦
15	Tropical algebra overloading	①	②	③	④	⑤		⑦	⑧
15	Untouchable numbers	①	②	③	④	⑤	⑥		⑧	⑨
15	Wagstaff primes	①	②		④		⑥	⑦		⑨
15	XXXX redacted	①	②	③	④	⑤	⑥				⑩
14	Audio frequency generator	①	②	③		⑤	⑥		⑧
14	Checksumcolor	①	②	③	④	⑤	⑥	⑦	⑧
14	Colour pinstripe/Printer	①	②	③	④	⑤		⑦	⑧
14	Deconvolution/2D+	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
14	Display an outline as a nested table	①	②	③	④	⑤	⑥	⑦	⑧	⑨
14	Equal prime and composite sums	①	②	③	④	⑤	⑥			⑨
14	Erdös-Selfridge categorization of primes	①	②	③	④	⑤	⑥			⑨
14	Even numbers which cannot be expressed as the sum of two twin primes	①	②	③	④	⑤	⑥	⑦		⑨
14	Find Chess960 starting position identifier	①	②	③	④	⑤	⑥	⑦	⑧	⑨
14	Generalised floating point addition	①	②	③	④	⑤	⑥			⑨
14	Greed	①	②	③	④	⑤	⑥		⑧
14	Hourglass puzzle	①	②	③	④	⑤	⑥	⑦	⑧
14	Jaccard index	①	②	③	④		⑥
14	Launch rocket with countdown and acceleration in stdout	①	②	③	④	⑤	⑥		⑧
14	Ormiston pairs	①	②		④	⑤		⑦		⑨
14	Powerful numbers	①	②	③	④	⑤	⑥	⑦	⑧
14	SEND + MORE = MONEY	①	②	③	④	⑤	⑥
14	Solve hanging lantern problem	①	②	③	④		⑥	⑦		⑨
14	Using a speech engine to highlight words	①	②	③	④	⑤			⑧
14	Verhoeff algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
14	War card game	①	②	③	④	⑤	⑥	⑦	⑧	⑨
13	Arithmetic derivative	①	②	③	④	⑤	⑥	⑦		⑨
13	Catmull–Clark subdivision surface	①	②	③		⑤		⑦	⑧	⑨	⑩
13	Distance and Bearing	①	②	③	④		⑥	⑦		⑨
13	Erdős-Nicolas numbers	①	②	③	④		⑥			⑨
13	Execute CopyPasta Language	①	②	③	④	⑤	⑥	⑦	⑧
13	Faces from a mesh	①	②	③	④	⑤	⑥	⑦	⑧	⑨
13	Fibonacci matrix-exponentiation	①	②	③	④	⑤	⑥	⑦	⑧
13	Gaussian primes	①	②	③	④		⑥	⑦		⑨
13	Graph colouring	①	②	③	④	⑤	⑥	⑦	⑧	⑨
13	Home primes	①	②	③	④	⑤	⑥		⑧	⑨
13	Isograms and heterograms	①	②	③	④		⑥			⑨
13	Iterators	①	②	③	④			⑦		⑨
13	Mayan calendar	①	②	③	④	⑤	⑥	⑦	⑧	⑨
13	O'Halloran numbers	①	②	③	④		⑥	⑦		⑨
13	Pell numbers	①	②	③	④	⑤	⑥			⑨
13	Round-robin tournament schedule	①	②	③	④	⑤	⑥			⑨
13	Spoof game	①	②	③	④	⑤	⑥		⑧		⑩
13	Time-based one-time password algorithm	①	②	③	④	⑤	⑥		⑧
13	Triangular numbers	①	②	③	④	⑤				⑨
13	Wordiff	①	②	③	④		⑥	⑦	⑧	⑨
12	16 puzzle game	①	②	③	④	⑤	⑥		⑧	⑨
12	ADFGVX cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨
12	Anaprimes	①	②	③	④	⑤				⑨
12	Combinations with repetitions/Square digit chain	①	②	③	④	⑤	⑥		⑧
12	Distinct palindromes within decimal numbers	①	②	③	④	⑤	⑥		⑧
12	External sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨
12	French Republican calendar	①	②	③	④	⑤	⑥		⑧
12	Magic numbers	①	②		④			⑦		⑨
12	Morpion solitaire	①	②	③		⑤	⑥		⑧	⑨	⑩
12	Ormiston triples	①	②	③	④	⑤		⑦		⑨
12	Pinstripe/Printer	①	②	③	④	⑤			⑧
12	Primes: n*2^m+1	①	②	③	④		⑥			⑨
12	Ramanujan primes	①	②	③	④	⑤	⑥		⑧
12	Range modifications	①	②	③	④	⑤	⑥	⑦	⑧
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		⑧
12	Simple turtle graphics	①	②	③			⑥	⑦		⑨
12	Square form factorization	①	②	③	④	⑤	⑥		⑧	⑨	⑩
12	Starting a web browser	①	②	③	④	⑤	⑥		⑧	⑨
12	Suffixation of decimal numbers	①	②	③	④	⑤	⑥	⑦	⑧
12	Terminal control/Restricted width positional input/No wrapping	①	②	③	④	⑤			⑧
12	Tree datastructures	①	②	③	④	⑤	⑥	⑦	⑧
12	Ultra useful primes	①	②	③	④	⑤	⑥			⑨
11	Bioinformatics/Global alignment	①	②	③	④	⑤	⑥	⑦	⑧
11	Brace expansion using ranges	①	②	③	④	⑤		⑦	⑧
11	Countdown	①	②	③	④			⑦		⑨
11	Discrete Fourier transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨
11	Execute Computer/Zero	①	②	③				⑦		⑨	O
11	IPC via named pipe	①	②		④	⑤	⑥				⑩
11	Numbers which are not the sum of distinct squares	①	②	③	④	⑤	⑥
11	Numerical and alphabetical suffixes	①	②	③	④	⑤	⑥	⑦	⑧
11	OpenGL/Utah teapot	①	②	③	④	⑤			⑧	⑨	⑩
11	Pan base non-primes	①	②	③	④		⑥			⑨	⑩
11	Parse EBNF	①	②	③	④	⑤	⑥
11	Penholodigital squares	①	②	③	④	⑤	⑥			⑨
11	Resistance calculator	①	②	③	④	⑤	⑥	⑦	⑧
11	Search in paragraph's text	①	②	③	④			⑦		⑨
11	Sieve of Pritchard	①	②	③	④		⑥	⑦		⑨
11	Sort an outline at every level	①	②	③	④	⑤	⑥	⑦	⑧	⑨
11	Terminal control/Restricted width positional input/With wrapping	①	②	③	④	⑤			⑧
11	URL shortener	①	②	③	④	⑤		⑦
11	Upside-down numbers	①	②	③	④	⑤	⑥	⑦
10	Addition-chain exponentiation	①	②	③		⑤		⑦	⑧		⑩
10	Boyer-Moore string search	①	②	③	④		⑥	⑦		⑨
10	Compiler/Verifying syntax	①	②	③	④	⑤	⑥		⑧		⑩
10	Elliptic Curve Digital Signature Algorithm	①	②	③	④	⑤	⑥	⑦	⑧		⑩
10	Integer long division	①	②	③	④		⑥		⑧
10	Knuth-Morris-Pratt string search	①	②	③	④		⑥	⑦		⑨
10	N-queens minimum and knights and bishops	①	②	③	④	⑤	⑥	⑦		⑨
10	Resistance network calculator	①	②	③	④	⑤	⑥	⑦	⑧
10	Robots	①	②	③	④	⑤				⑨
10	Solve equations with substitution method	①	②	③	④		⑥	⑦
10	Sub-unit squares	①	②	③	④		⑥			⑨
10	Super-Poulet numbers	①	②	③	④		⑥	⑦		⑨
10	Tamagotchi emulator	①	②	③		⑤			⑧
10	Text to HTML	①	②	③	④	⑤	⑥		⑧
10	User defined pipe and redirection operators	①	②	③	④	⑤	⑥			⑨
10	Zsigmondy numbers	①	②	③	④		⑥	⑦		⑨
9	B-spline	①	②	③	④		⑥
9	Black box	①	②	③		⑤			⑧	⑨
9	Doubly-linked list/Element removal	①	②	③	④	⑤			⑧
9	Fermat pseudoprimes	①	②	③	④		⑥
9	Fibonacci heap	①	②	③	④	⑤		⑦	⑧
9	Marching squares	①	②	③	④		⑥	⑦		⑨
9	Multidimensional Newton-Raphson method	①	②	③	④	⑤			⑧
9	OpenGL pixel shader	①	②			⑤					⑩
9	Pairs with common factors	①	②	③	④		⑥			⑨
9	Penta-power prime seeds	①	②		④		⑥	⑦
9	Price list behind API	①	②	③	④	⑤	⑥	⑦	⑧
9	Quad-power prime seeds	①	②		④		⑥	⑦
9	Ramanujan primes/twins	①	②	③	④	⑤	⑥		⑧
9	Random sentence from book	①	②	③	④		⑥	⑦	⑧
9	Rosetta Code/Run examples	①	②		④	⑤			⑧
9	Singular value decomposition	①	②	③	④	⑤		⑦			⑩
9	Smallest enclosing circle problem	①	②	③	④	⑤		⑦	⑧
9	Transliterate English text using the Greek alphabet	①	②	③	④		⑥			⑨
9	Worthwhile task shaving	①	②	③	④		⑥
8	Audio overlap loop	①	②	③		⑤			⑧
8	Babylonian spiral	①	②	③	④		⑥	⑦		⑨
8	Dating agency	①	②	③	④		⑥	⑦
8	Factor-perfect numbers	①	②	③	④		⑥	⑦		⑨
8	Hexapawn	①	②	③		⑤	⑥	⑦
8	Horse racing	①	②	③	④	⑤	⑥		⑧
8	I'm a software engineer, get me out of here	①	②	③	④	⑤	⑥			⑨
8	Inner classes	①	②	③	④	⑤				⑨
8	P-Adic numbers, basic	①	②	③	④	⑤			⑧
8	Peripheral drift illusion	①	②	③	④		⑥		⑧
8	Raster bars	①	②	③	④	⑤			⑧
8	Recursive descent parser generator	①	②	③	④	⑤	⑥			⑨
8	Remote agent/Agent logic	①	②	③		⑤	⑥				⑩
8	Remote agent/Simulation	①	②	③		⑤	⑥				⑩
8	Segmentation fault protection	①	②	③	④		⑥
8	Smallest number k such that k+2^m is composite for all m less than k	①	②	③	④	⑤	⑥
8	Strassen's algorithm	①	②	③	④	⑤		⑦	⑧
8	Wasteful, equidigital and frugal numbers	①	②	③	④		⑥			⑨
8	Waveform analysis/Doh ray me	①	②	③	④	⑤	⑥		⑧
8	WiktionaryDumps to words	①	②	③	④		⑥				⑩
7	Apéry's constant	①	②	③	④		⑥			⑨
7	Bifid cipher	①	②	③	④		⑥	⑦		⑨
7	Boids	①	②	③		⑤			⑧		⑩
7	Boustrophedon transform	①	②	③	④		⑥			⑨
7	Chess player	①	②			⑤	⑥	⑦
7	Compiler/Simple file inclusion pre processor	①	②	③	④					⑨
7	Engel expansion	①	②	③	④		⑥			⑨
7	Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique	①	②	③	④	⑤			⑧
7	Process SMIL directives in XML data	①	②		④	⑤	⑥		⑧
7	Remote agent/Agent interface	①	②	③		⑤					⑩
7	Sorensen–Dice coefficient	①	②		④		⑥	⑦		⑨
7	Statistics/Chi-squared distribution	①	②	③	④		⑥	⑦
6	Anagram generator	①	②	③	④					⑨
6	Autogram checker	①	②	③	④		⑥			⑨
6	Calmo numbers	①			④	⑤
6	Convert CSV records to TSV	①	②	③						⑨
6	Create an executable for a program in an interpreted language	①	②							⑨
6	Create your own text control codes	①	②	③	④
6	Divide a rectangle into a number of unequal triangles	①	②	③	④		⑥	⑦
6	Dominoes	①	②	③			⑥
6	OLE automation	①	②			⑤		⑦		O
6	P-Adic square roots	①	②	③					⑧
6	Particle fountain	①	②	③	④		⑥
6	Red black tree sort	①	②	③				⑦
6	Rosetta Code/List authors of task descriptions	①	②	③	④	⑤			⑧
6	Selection bias in clinical sciences	①	②	③	④		⑥	⑦
6	Solve a Rubik's cube	①	②	③		⑤			⑧
6	Use a REST API	①	②			⑤		⑦
6	Wave function collapse	①	②		④		⑥			⑨	⑩
5	Cycles of a permutation	①	②	③				⑦
5	Erdős–Woods numbers	①	②	③	④			⑦
5	Generalised floating point multiplication	①	②	③		⑤
5	Multiton	①	②	③	④		⑥
5	Number triplets game	①	②	③			⑥
5	Solving coin problems	①	②	③		⑤	⑥
5	Unicode polynomial equation	①	②	③		⑤			⑧
5	Waveform analysis/Top and tail	①	②	③		⑤			⑧
5	Weather routing	①	②	③		⑤			⑧
4	15 puzzle game in 3D	①	②			⑤
4	Blackjack strategy	①	②			⑤			⑧
4	CLI-based maze-game	①	②						⑧
4	Compiler/Preprocessor	①	②	③				⑦
4	Cross compilation	①	②	O						O
4	Diophantine linear system solving	①	②								⑩
4	IRC gateway	①	②			⑤
4	Protecting Memory Secrets	①	②	③						⑨
4	Sanitize user input	①	②		④
4	Ukkonen’s suffix tree construction	①	②	③		⑤
4	Uno (card game)	①	②	③				⑦
4	Vidir	①	②		④
4	WebGL rotating F	①	②	③						⑨
3	3d turtle graphics	①	②							⑨
3	Elevator simulation	①	②