# Tasks not implemented in Python

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## Tasks not implemented in Python

### A

### C

### D

### E

### F

### G

### I

### M

### N

### P

- P-Adic numbers, basic
- P-Adic square roots
- Pairs with common factors
- Pan base non-primes
- Peripheral drift illusion
- Pinstripe/Printer
- Prime numbers whose neighboring pairs are tetraprimes

### Q

### R

### S

### U

### W

## Draft tasks not implemented in Python

### 1

### 3

### A

- ASCII control characters
- Anaprimes
- Assertions in design by contract
- Audio frequency generator
- Audio overlap loop
- Autogram checker

### B

### C

- CLI-based maze-game
- Centroid of a set of N-dimensional points
- Color separation
- Combinations with repetitions/Square digit chain
- Compiler/Simple file inclusion pre processor
- Compiler/Verifying syntax
- Continued fraction convergents
- Convert CSV records to TSV
- Create an executable for a program in an interpreted language
- Create your own text control codes
- Cross compilation
- Curve that touches three points

### D

- Diophantine linear system solving
- Distinct palindromes within decimal numbers
- Doubly-linked list/Element removal

### E

### F

### G

- Generalised floating point addition
- Generalised floating point multiplication
- Gradient descent
- Greed

### H

### I

### L

- Lagrange Interpolation
- Latin Squares in reduced form/Randomizing using Jacobson and Matthews' technique
- Launch rocket with countdown and acceleration in stdout
- Least m such that n! + m is prime
- Line circle intersection

### M

- Minimum primes
- Morpion solitaire
- Multidimensional Newton-Raphson method
- Multiplicatively perfect numbers

### N

### O

### P

- Palindromic primes in base 16
- Pandigital prime
- Parse EBNF
- Penholodigital squares
- Permuted multiples
- Piprimes
- Posit numbers/decoding
- Posit numbers/encoding
- Prime numbers p for which the sum of primes less than or equal to p is prime
- Primes which contain only one odd digit
- Primes whose first and last number is 3
- Process SMIL directives in XML data
- Protecting Memory Secrets

### R

- Raster bars
- Recursive descent parser generator
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Robots
- Rodrigues’ rotation formula
- Roots of a cubic polynomial
- Rosetta Code/List authors of task descriptions
- Rosetta Code/Run examples
- Rosetta Code/Tasks without examples

### S

- Safe mode
- Sanitize user input
- Segmentation fault protection
- Selective file copy
- Simulated annealing
- Singly-linked list/Reversal
- Solve a Rubik's cube
- Solving coin problems
- Sorting algorithms/Tree sort on a linked list
- Spoof game
- Square root by hand
- Starting a web browser
- Substring primes
- Sum data type
- Sum of primes in odd positions is prime
- Szymański's algorithm

### T

- Tamagotchi emulator
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Text completion
- Text to HTML
- Three word location
- Time-based one-time password algorithm
- Transportation problem
- Triangular numbers

### U

- Unicode polynomial equation
- Unit testing
- Untrusted environment
- Useless instructions
- User defined pipe and redirection operators
- Using a speech engine to highlight words

### V

### W

## Tasks omitted from Python

### C

- Calendar - for "REAL" programmers
- Compile-time calculation
- Constrained genericity
- Create an object at a given address

### F

### P

### S

### T

## End of List

Again, feel free to try your hand at any of the tasks listed on this page.