trichoplax
Coding challenges
Posts
See all »This is a fixed output challenge. It is similar to a standard Kolmogorov complexity challenge, except you get to choose your own fixed output. Given no input, output 55 fruits. You may choose any 5...
5 answers · posted 1y ago by trichoplax · last activity 7mo ago by trichoplax
Given a chess board with some knights on it, say how many squares are neither attacked by a knight nor containing a knight. Input An 8 by 8 grid where each square is either a knight or empty T...
3 answers · posted 1y ago by trichoplax · last activity 8mo ago by Karl Knechtel
Given a sequence of letters, output only the vowels. Input A sequence of letters This may be a string or any ordered data structure of characters (provided it is consistent between inputs) Th...
9 answers · posted 1y ago by trichoplax · last activity 1y ago by taoh
Given a string, convert all of its letters using ROT13, and all of its digits using ROT5. This is sometimes referred to as ROT13.5. Input A sequence of printable ASCII characters (character cod...
4 answers · posted 1y ago by trichoplax · last activity 1y ago by Razetime
The probability of rolling every number from 1 to 6 with $N$ six-sided dice. Input A positive integer $N$. Your code must work for inputs up to and including 10, but may crash, error, or give ...
4 answers · posted 10mo ago by trichoplax · last activity 10mo ago by RubenVerg
posted 1y ago by trichoplax · edited 1y ago by trichoplax
I see the Sandbox as a vital part of challenge design. When I visit the Sandbox I'd like to be able to show only proposals that are not finalized, so I can focus feedback where it is needed. In th...
3 answers · posted 1y ago by trichoplax · last activity 1y ago by Monica Cellio
This is a fixed output challenge. Output a textual representation of a chessboard hosting 8 queens, none of which are attacking each other. There are 92 ways of arranging them, 12 if rotations and...
5 answers · posted 1y ago by trichoplax · last activity 1y ago by m90
Given a positive integer as input, indicate which base from 2 to 16 gives the most holes in the representation of the input in that base. The digits used are 0123456789ABCDEF. Note that these incl...
6 answers · posted 1y ago by trichoplax · last activity 1y ago by Razetime
Given a sequence of letters, omit those with the highest or lowest pop count. Terminology The pop count or population count of a binary string is the number of 1s in it. For this challenge, the ...
6 answers · posted 1y ago by trichoplax · last activity 1y ago by A username
Given a string of printable ASCII characters, convert them all to lowercase, except not just the letters. ASCII characters that are letters have a bit in their binary representation that is 0 for ...
7 answers · posted 1y ago by trichoplax · edited 8mo ago by trichoplax
Given a sequence of lower case letters, sort them into order of height. Heights The heights of letters are dependent on font, so for this challenge the height order to be used is as defined below...
5 answers · posted 1y ago by trichoplax · last activity 9mo ago by Taeir
Given a hinged tetromino, give it a unique, consistent label independent of location, rotation, and reflection. Tetrominoes A tetromino is a connected subset of the square tiling, composed of 4 s...
2 answers · posted 10mo ago by trichoplax · last activity 9mo ago by RubenVerg
This is a language specific challenge, for HTML only. Your answer is the content of a self contained HTML file, that when opened in a web browser gives a plain black page. Requirements The HTM...
4 answers · posted 3mo ago by trichoplax · last activity 3mo ago by Razetime
Given a string of Roman numerals, decide whether it forms a valid Roman number. If not, output the substring that proves this, from the list of 50 strings described below. Relevant fact This chal...
2 answers · posted 1mo ago by trichoplax · last activity 3h ago by Arpad Horvath
Reputation | 785 | |
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Number of edits made | 385 |
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