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Challenges

Code challenges of all types. For questions about golfing, bowling, etc, use Q&A. For questions about this community, use Meta. To get feedback on a challenge before posting it, use Sandbox.

100 posts · Subscribe
66%
+2 −0
Run-length encode a byte sequence

2 answers  ·  posted 7mo ago by celtschk‭  ·  last activity 7mo ago by Moshi‭

66%
+2 −0
Convert integer to English

3 answers  ·  posted 8mo ago by celtschk‭  ·  last activity 7mo ago by Moshi‭

71%
+3 −0
Find good coalitions

2 answers  ·  posted 8mo ago by celtschk‭  ·  last activity 8mo ago by Moshi‭

81%
+7 −0
Truthify an array

10 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

84%
+9 −0
Obligatory Quine Challenge

9 answers  ·  posted over 1 year ago by ATaco‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

66%
+2 −0
Encode and decode floating point integers

2 answers  ·  posted 8mo ago by celtschk‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

66%
+2 −0
77%
+5 −0
Recreate the Stack Overflow logo

2 answers  ·  posted 11mo ago by IDoYTSoSubHaha‭  ·  last activity 8mo ago by Anonymous‭

75%
+4 −0
The Ludic Numbers

3 answers  ·  posted 8mo ago by Razetime‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

75%
+4 −0
Decode periodic decimal fractions

2 answers  ·  posted 8mo ago by celtschk‭  ·  edited 8mo ago by IDoYTSoSubHaha‭

66%
+2 −0
Reverse your quine

4 answers  ·  posted 8mo ago by IDoYTSoSubHaha‭  ·  last activity 8mo ago by celtschk‭

66%
+2 −0
Expand a polynomial

4 answers  ·  posted 8mo ago by Moshi‭  ·  last activity 8mo ago by Moshi‭

71%
+3 −0
Abbreviate everything

3 answers  ·  posted 8mo ago by IDoYTSoSubHaha‭  ·  last activity 8mo ago by Hakerh400‭

84%
+9 −0
Create an Alphabet Diamond

11 answers  ·  posted over 1 year ago by dzaima‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

60%
+1 −0
Getting perfect squares, differently

7 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 8mo ago by IDoYTSoSubHaha‭

71%
+3 −0
When The Ternary Is Balance

3 answers  ·  posted 8mo ago by Razetime‭  ·  last activity 8mo ago by Moshi‭

71%
+3 −0
My house is destroyed! Can you make me one?

10 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 8mo ago by Quintec‭

88%
+13 −0
Output 256 in many different ways

12 answers  ·  posted over 1 year ago by dzaima‭  ·  last activity 9mo ago by snail_‭

80%
+6 −0
In The Jailhouse Now

6 answers  ·  posted 9mo ago by Shaggy‭  ·  last activity 9mo ago by snail_‭

75%
+4 −0
Tile pyramids on top of each other!

9 answers  ·  posted over 1 year ago by Dion‭  ·  last activity 9mo ago by A username‭

71%
+3 −0
Multiply two strings

6 answers  ·  posted 9mo ago by celtschk‭  ·  last activity 9mo ago by Hakerh400‭

75%
+4 −0
Generate Lewis Caroll's Jabberwocky

4 answers  ·  posted over 1 year ago by celtschk‭  ·  last activity 9mo ago by IDoYTSoSubHaha‭

80%
+6 −0
Beaver Code Decryption

6 answers  ·  posted 1y ago by rak1507‭  ·  last activity 9mo ago by Shaggy‭

75%
+4 −0
Ratio limits of fibonacci-like series

3 answers  ·  posted 1y ago by rak1507‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

80%
+6 −0
Is it a near-anagram?

5 answers  ·  posted 1y ago by snail_‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

71%
+3 −0
Longest Increasing Subsequence

4 answers  ·  posted over 1 year ago by Quintec‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

71%
+3 −0
Win a War (or at least a few battles)

2 answers  ·  posted over 1 year ago by Quintec‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

71%
+3 −0
The Camelot Wheel

2 answers  ·  posted over 1 year ago by Quintec‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

80%
+6 −0
Juggler sequences

9 answers  ·  posted 1y ago by caird coinheringaahing‭  ·  last activity 9mo ago by Shaggy‭

66%
+2 −0
Golf me a polygonal loader

1 answer  ·  posted over 1 year ago by Razetime‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

71%
+3 −0
Towering Cistercian Representation

1 answer  ·  posted over 1 year ago by Razetime‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

77%
+5 −0
Shuffle a subset of a list

4 answers  ·  posted 11mo ago by user‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

77%
+5 −0
Versatile self-printer

1 answer  ·  posted 11mo ago by AndrewTheCodegolfer‭  ·  last activity 9mo ago by IDoYTSoSubHaha‭

77%
+5 −0
83%
+8 −0
Length of a Sumac Sequence

9 answers  ·  posted over 1 year ago by Razetime‭  ·  edited 9mo ago by IDoYTSoSubHaha‭

77%
+5 −0
Guess the language! (Cops' Thread)

16 answers  ·  posted 10mo ago by AndrewTheCodegolfer‭  ·  last activity 9mo ago by Shaggy‭

71%
+3 −0
Guess the language! (Robbers' Thread)

12 answers  ·  posted 10mo ago by AndrewTheCodegolfer‭  ·  last activity 9mo ago by m90‭

81%
+7 −0
Backspace an array

6 answers  ·  posted 12mo ago by rak1507‭  ·  last activity 10mo ago by Shaggy‭

77%
+5 −0
Gamer Meme Creator

4 answers  ·  posted 10mo ago by Razetime‭  ·  last activity 10mo ago by user‭

66%
+2 −0
Three Number Monte

2 answers  ·  posted 10mo ago by Quintec‭  ·  last activity 10mo ago by Moshi‭

75%
+4 −0
Add two negabinary integers

3 answers  ·  posted 10mo ago by Moshi‭  ·  last activity 10mo ago by Shaggy‭

60%
+1 −0
75%
+4 −0
Create a Sudoku

4 answers  ·  posted 11mo ago by AndrewTheCodegolfer‭  ·  last activity 11mo ago by Shaggy‭

81%
+7 −0
Evaluation order of an APL n-train

7 answers  ·  posted 11mo ago by rak1507‭  ·  last activity 11mo ago by Shaggy‭

77%
+5 −0
Longest parallel lines

1 answer  ·  posted over 1 year ago by rak1507‭  ·  edited 12mo ago by rak1507‭

87%
+12 −0
Print the Great Numeric Pyramid

5 answers  ·  posted over 1 year ago by Sisyphus‭  ·  last activity 1y ago by Marshall Lochbaum‭

71%
+3 −0
Really Cool Numbers

3 answers  ·  posted 1y ago by Quintec‭  ·  last activity 1y ago by user‭

75%
+4 −0
Calculate a person's age

0 answers  ·  posted over 1 year ago by Razetime‭

81%
+7 −0
Integer to Roman numeral

3 answers  ·  posted over 1 year ago by Lundin‭  ·  last activity over 1 year ago by Lundin‭

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