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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.

91 posts · Subscribe
91%
+20 −0
"Hello, World!"

52 answers  ·  posted 12mo ago by anna328p‭  ·  last activity 20d ago by Mark Giraffe‭

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

12 answers  ·  posted 11mo ago by dzaima‭  ·  last activity 2mo ago by snail_‭

87%
+12 −0
Print the Great Numeric Pyramid

5 answers  ·  posted 11mo ago by Sisyphus‭  ·  last activity 6mo ago by Marshall Lochbaum‭

87%
+12 −0
Partial Sums of Harmonic Series

9 answers  ·  posted 11mo ago by Quintec‭  ·  edited 2mo ago by Mark Giraffe‭

86%
+11 −0
Evaluate a single variable polynomial equation

17 answers  ·  posted 11mo ago by moony‭  ·  last activity 1mo ago by Moshi‭

85%
+10 −0
Reverse an ASCII string

25 answers  ·  posted 11mo ago by moony‭  ·  last activity 8d ago by Mark Giraffe‭

85%
+10 −0
Merge two strings

7 answers  ·  posted 6mo ago by rak1507‭  ·  last activity 2mo ago by bastolski‭

84%
+9 −0
1, 2, Fizz, 4, Buzz!

18 answers  ·  posted 11mo ago by Dion‭  ·  last activity 21d ago by Mark Giraffe‭

84%
+9 −0
Weave Strings Together

12 answers  ·  posted 11mo ago by Razetime‭  ·  last activity 21d ago by Mark Giraffe‭

84%
+9 −0
Create an Alphabet Diamond

11 answers  ·  posted 9mo ago by dzaima‭  ·  last activity 1mo ago by Mark Giraffe‭

84%
+9 −0
Obligatory Quine Challenge

9 answers  ·  posted 11mo ago by ATaco‭  ·  last activity 21d ago by Mark Giraffe‭

83%
+8 −0
Are All Elements Equal?

12 answers  ·  posted 2mo ago by Razetime‭  ·  last activity 2mo ago by celtschk‭

83%
+8 −0
It's Hip to be Square

14 answers  ·  posted 3mo ago by Shaggy‭  ·  last activity 1mo ago by user‭

83%
+8 −0
Length of a Sumac Sequence

9 answers  ·  posted 11mo ago by Razetime‭  ·  edited 2mo ago by Mark Giraffe‭

83%
+8 −0
Cumulative Counts

10 answers  ·  posted 6mo ago by rak1507‭  ·  last activity 3mo ago by snail_‭

81%
+7 −0
Integer to Roman numeral

3 answers  ·  posted 11mo ago by Lundin‭  ·  last activity 10mo ago by Lundin‭

81%
+7 −0
Solve Goldbach's Conjecture

4 answers  ·  posted 9mo ago by Quintec‭  ·  edited 2mo ago by Mark Giraffe‭

81%
+7 −0
Truthify an array

10 answers  ·  posted 10mo ago by Razetime‭  ·  last activity 20d ago by Mark Giraffe‭

81%
+7 −0
Coat of Many Colours

5 answers  ·  posted 2mo ago by Shaggy‭  ·  last activity 22d ago by Mark Giraffe‭

81%
+7 −0
Backspace an array

6 answers  ·  posted 5mo ago by rak1507‭  ·  last activity 3mo ago by Shaggy‭

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

7 answers  ·  posted 5mo ago by rak1507‭  ·  last activity 4mo ago by Shaggy‭

80%
+6 −0
Golf a FRACTRAN interpreter

6 answers  ·  posted 6mo ago by Razetime‭  ·  last activity 2mo ago by snail_‭

80%
+6 −0
Make my number a set

9 answers  ·  posted 6mo ago by Wezl‭  ·  last activity 3mo ago by hyper-neutrino‭

80%
+6 −0
Beaver Code Decryption

6 answers  ·  posted 6mo ago by rak1507‭  ·  last activity 2mo ago by Shaggy‭

80%
+6 −0
In The Jailhouse Now

6 answers  ·  posted 2mo ago by Shaggy‭  ·  last activity 2mo ago by snail_‭

80%
+6 −0
Evens or Odds - you know this one

13 answers  ·  posted 4mo ago by AndrewTheCodegolfer‭  ·  last activity 1mo ago by Shaggy‭

80%
+6 −0
Reduce over the range [1..n]

11 answers  ·  posted 3mo ago by user‭  ·  last activity 2mo ago by celtschk‭

80%
+6 −0
Word Set Square

10 answers  ·  posted 8mo ago by Razetime‭  ·  last activity 2mo ago by Mark Giraffe‭

80%
+6 −0
Is it a near-anagram?

5 answers  ·  posted 8mo ago by snail_‭  ·  edited 2mo ago by Mark Giraffe‭

80%
+6 −0
Shape of an array

5 answers  ·  posted 11mo ago by Adám‭  ·  last activity 5mo ago by forestbeasts‭

80%
+6 −0
Bytes to Segfault

9 answers  ·  posted 11mo ago by moony‭  ·  last activity 3mo ago by user‭

77%
+5 −0
99 Shortened Bottles of Beer

13 answers  ·  posted 3mo ago by Mark Giraffe‭  ·  last activity 10d ago by Mark Giraffe‭

77%
+5 −0
Versatile self-printer

1 answer  ·  posted 4mo ago by AndrewTheCodegolfer‭  ·  last activity 2mo ago by Mark Giraffe‭

77%
+5 −0
Are they abundant, deficient or perfect?

8 answers  ·  posted 4mo ago by caird coinheringaahing‭  ·  last activity 2mo ago by Mark Giraffe‭

77%
+5 −0
Recreate the Stack Overflow logo

2 answers  ·  posted 4mo ago by Mark Giraffe‭  ·  last activity 27d ago by Istiak‭

77%
+5 −0
Shuffle a subset of a list

4 answers  ·  posted 4mo ago by user‭  ·  edited 2mo ago by Mark Giraffe‭

77%
+5 −0
Juggler sequences

9 answers  ·  posted 6mo ago by caird coinheringaahing‭  ·  last activity 2mo ago by Shaggy‭

77%
+5 −0
77%
+5 −0
Gamer Meme Creator

4 answers  ·  posted 3mo ago by Razetime‭  ·  last activity 3mo ago by user‭

77%
+5 −0
Collatz conjecture; Count the tries to reach $1$

10 answers  ·  posted 1mo ago by Mark Giraffe‭  ·  last activity 10d ago by Mark Giraffe‭

77%
+5 −0
Longest parallel lines

1 answer  ·  posted 9mo ago by rak1507‭  ·  edited 5mo ago by rak1507‭

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

9 answers  ·  posted 11mo ago by Dion‭  ·  last activity 2mo ago by A username‭

75%
+4 −0
Add two negabinary integers

3 answers  ·  posted 4mo ago by Moshi‭  ·  last activity 4mo ago by Shaggy‭

75%
+4 −0
Prime Difference

7 answers  ·  posted 11mo ago by Quintec‭  ·  edited 2mo ago by Mark Giraffe‭

75%
+4 −0
Roll n fair dice

5 answers  ·  posted 2mo ago by Moshi‭  ·  last activity 2mo ago by Shaggy‭

75%
+4 −0
Word Count Tool

4 answers  ·  posted 4mo ago by Quintec‭  ·  last activity 29d ago by carmysilna‭

75%
+4 −0
Create a Sudoku

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

75%
+4 −0
Diagonalized alphabet

6 answers  ·  posted 5mo ago by Razetime‭  ·  last activity 2mo ago by Mark Giraffe‭

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

4 answers  ·  posted 11mo ago by celtschk‭  ·  last activity 2mo ago by Mark Giraffe‭

75%
+4 −0
Repeat the characters

12 answers  ·  posted 2mo ago by celtschk‭  ·  last activity 22d ago by Mark Giraffe‭

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