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Challenges Q&A Sandbox Meta
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Testing ground for new challenges. Post here to get feedback, edit to adjust, and then when you're ready, post in Challenges.

122 posts   RSS
Activity Age Score Random
Filters (None)
81%
+7 −0
Reduce over the range [1..n] [FINALIZED]

posted 2y ago by user‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized array-manipulation blackbox-function
77%
+5 −0
Repeat the characters [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf string finalized
75%
+4 −0
From the smallest seed

posted 2y ago by Moshi‭  ·  edited 2y ago by Moshi‭

code-golf finalized
75%
+4 −0
Decode periodic decimal fractions [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

number finalized parsing
75%
+4 −0
Collatz conjecture; Count the tries to reach $1$ [released]

posted 2y ago by General Sebast1an‭  ·  edited 10mo ago by trichoplax‭

code-golf math number finalized
75%
+4 −0
Solve a Word Search!

posted 2y ago by Moshi‭  ·  edited 2y ago by Moshi‭

code-golf
75%
+4 −0
Find the IP address class [FINALIZED]

posted 2y ago by Razetime‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized internet
75%
+4 −0
Expand a polynomial [FINALIZED]

posted 2y ago by Moshi‭  ·  edited 2y ago by Moshi‭

code-golf math finalized
75%
+4 −0
Compute the determinant

posted 2y ago by Moshi‭  ·  edited 2y ago by Moshi‭

code-golf math
71%
+3 −0
Given the preorder and the inorder of a tree, output the postorder [FINALIZED]

posted 3y ago by Hakerh400‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized
71%
+3 −0
Word Set Square[FINALIZED]

posted 3y ago by Razetime‭  ·  edited 3y ago by Razetime‭

code-golf ascii-art finalized
71%
+3 −0
Draw a line over ASCII

posted 3y ago by dzaima‭  ·  edited 3y ago by dzaima‭

code-golf ascii-art
71%
+3 −0
Integer to Roman numeral

posted 3y ago by Lundin‭  ·  edited 3y ago by Lundin‭

code-golf kolmogorov-complexity
71%
+3 −0
Output 256 in many different ways [FINALIZED]

posted 3y ago by dzaima‭  ·  edited 10mo ago by trichoplax‭

alternative-scoring restricted-source finalized
71%
+3 −0
Generate Lewis Caroll's Jabberwocky [FINALIZED]

posted 3y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf kolmogorov-complexity finalized
71%
+3 −0
Shuffle a subset of a list [FINALIZED]

posted 3y ago by user‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized array-manipulation random
71%
+3 −0
Add two negabinary integers [FINALIZED]

posted 3y ago by Moshi‭  ·  edited 10mo ago by trichoplax‭

code-golf math finalized
71%
+3 −0
Run-length encode a byte sequence [FINALIZED]

posted 3y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized encoding
71%
+3 −0
Weave strings together[FINALIZED]

posted 3y ago by Razetime‭  ·  edited 3y ago by Razetime‭

code-golf string finalized
71%
+3 −0
Are All Elements Equal?[FINALIZED]

posted 2y ago by Razetime‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized decision-problem list
71%
+3 −0
Obligatory factorial challenge

posted 2y ago by user‭  ·  edited 2y ago by user‭

code-golf math factorial
71%
+3 −0
Encode and decode floating point integers [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf number finalized
71%
+3 −0
The Ludic Numbers[FINALIZED]

posted 2y ago by Razetime‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized sequence
71%
+3 −0
Find good coalitions [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized
71%
+3 −0
Operation "Find The Operator" [released]

posted 2y ago by General Sebast1an‭  ·  edited 10mo ago by trichoplax‭

code-golf math number finalized
71%
+3 −0
Balance my ternary[FINALIZED]

posted 2y ago by Razetime‭  ·  edited 2y ago by Razetime‭

code-golf number finalized base
71%
+3 −0
Golf golf challenge [FINALIZED]

posted 2y ago by Lundin‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized
71%
+3 −0
Keyword golfing [FINALIZED]

posted 2y ago by Lundin‭  ·  edited 10mo ago by trichoplax‭

code-golf alternative-scoring finalized
71%
+3 −0
Determine whether an integer is square-free [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized number-theory
71%
+3 −0
Looping counter [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized
71%
+3 −0
Create a range grid

posted 2y ago by Razetime‭

code-golf matrix
71%
+3 −0
Chequer checker [FINALIZED]

posted 1y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

code-golf string finalized decision-problem
71%
+3 −0
12-hour time is weird [finalized]

posted 2mo ago by honnza‭  ·  edited 2mo ago by honnza‭

code-golf finalized
66%
+2 −0
Decoding a non injective bit matrix encoding [FINALIZED]

posted 1y ago by Aftermost2167‭  ·  edited 1y ago by trichoplax‭

finalized optimization fastest-code encoding binary
66%
+2 −0
Expected value of highest dice rolled [FINALIZED]

posted 10mo ago by trichoplax‭  ·  edited 10mo ago by trichoplax‭

code-golf math finalized dice
66%
+2 −0
The 50 substrings that validate any string of Roman numerals [FINALIZED]

posted 2mo ago by trichoplax‭  ·  edited 2mo ago by trichoplax‭

code-golf math number string finalized
66%
+2 −0
Create a finite projective plane of order $n$

posted 2y ago by user‭  ·  edited 2y ago by user‭

code-golf math
66%
+2 −0
Implement Rule 110 [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized cellular-automaton
66%
+2 −0
Presumptuous base conversion [FINALIZED]

posted 1y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

code-golf number finalized base parsing
66%
+2 −0
Multiply two strings [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf string finalized
66%
+2 −0
Stairs? Stairs! Stairs. [released]

posted 2y ago by General Sebast1an‭  ·  edited 10mo ago by trichoplax‭

code-golf ascii-art string finalized
66%
+2 −0
Convert integer to English [FINALIZED]

posted 2y ago by celtschk‭  ·  edited 10mo ago by trichoplax‭

code-golf number string finalized
66%
+2 −0
Create an Alphabet Diamond [FINALIZED]

posted 3y ago by dzaima‭  ·  edited 10mo ago by trichoplax‭

code-golf kolmogorov-complexity finalized
66%
+2 −0
Caesar shift cipher [released]

posted 3y ago by General Sebast1an‭  ·  edited 10mo ago by trichoplax‭

code-golf string finalized encryption decryption
66%
+2 −0
Gamer Meme Creator[FINALIZED]

posted 2y ago by Razetime‭  ·  edited 2y ago by Razetime‭

code-golf ascii-art finalized gaming
66%
+2 −0
Recreate the Server Fault logo [released]

posted 3y ago by General Sebast1an‭  ·  edited 2y ago by General Sebast1an‭

code-golf graphical-output finalized
66%
+2 −0
Interleave multiple arrays at once

posted 3y ago by moony‭  ·  edited 3y ago by moony‭

code-golf
66%
+2 −0
A chunk of symbols is a calculation [released]

posted 2y ago by General Sebast1an‭  ·  edited 10mo ago by trichoplax‭

code-golf math finalized sequence decryption
66%
+2 −0
Is it a near-anagram? [FINALIZED]

posted 3y ago by snail_‭  ·  edited 3y ago by snail_‭

code-golf string finalized
66%
+2 −0
Evaluate a univariate polynomial [FINALIZED]

posted 3y ago by moony‭  ·  edited 10mo ago by trichoplax‭

code-golf finalized
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