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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
80%
+6 −0
Word Count Tool

10 answers  ·  posted 11mo ago by Quintec‭  ·  last activity 1d ago by torres‭

84%
+9 −0
Can you give me half?

19 answers  ·  posted 3mo ago by Razetime‭  ·  last activity 1d ago by Razetime‭

80%
+6 −0
Collatz conjecture; Count the tries to reach $1$

14 answers  ·  posted 8mo ago by IDoYTSoSubHaha‭  ·  last activity 4d ago by Zakk‭

77%
+5 −0
Looping counter

13 answers  ·  posted 26d ago by celtschk‭  ·  last activity 10d ago by orthoplex‭

75%
+4 −0
Create a range grid

7 answers  ·  posted 18d ago by Razetime‭  ·  last activity 15d ago by south‭

55%
+3 −2
Make $2 + 2 = 5$

17 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 18d ago by Zakk‭

71%
+3 −0
The Pell Numbers

8 answers  ·  posted 1y ago by Razetime‭  ·  last activity 20d ago by Zakk‭

80%
+6 −0
Write a Deadfish Interpreter

8 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 20d ago by Zakk‭

84%
+9 −0
It's Hip to be Square

20 answers  ·  posted 10mo ago by Shaggy‭  ·  last activity 20d ago by Zakk‭

75%
+4 −0
Keyword golfing

5 answers  ·  posted 3mo ago by Lundin‭  ·  last activity 22d ago by Zakk‭

92%
+22 −0
"Hello, World!"

55 answers  ·  posted over 1 year ago by anna328p‭  ·  last activity 1mo ago by celtschk‭

86%
+11 −0
Reverse an ASCII string

27 answers  ·  posted over 1 year ago by moony‭  ·  last activity 1mo ago by celtschk‭

75%
+4 −0
Determine whether an integer is square-free

8 answers  ·  posted 4mo ago by celtschk‭  ·  last activity 2mo ago by south‭

81%
+7 −0
Solve Goldbach's Conjecture

9 answers  ·  posted over 1 year ago by Quintec‭  ·  last activity 2mo ago by south‭

84%
+9 −0
Are All Elements Equal?

15 answers  ·  posted 9mo ago by Razetime‭  ·  last activity 2mo ago by south‭

33%
+1 −4
Small integer swapping

7 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 3mo ago by south‭

75%
+4 −0
A number adder, not a death adder

13 answers  ·  posted 11mo ago by AndrewTheCodegolfer‭  ·  last activity 3mo ago by Olin Lathrop‭

57%
+2 −1
"Hello, {name}!"

14 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 3mo ago by IDoYTSoSubHaha‭

66%
+2 −0
Make my value binary

14 answers  ·  posted 9mo ago by IDoYTSoSubHaha‭  ·  last activity 3mo ago by Olin Lathrop‭

80%
+6 −0
Shape of an array

6 answers  ·  posted over 1 year ago by Adám‭  ·  last activity 3mo ago by south‭

81%
+7 −0
Golf a FRACTRAN interpreter

7 answers  ·  posted 1y ago by Razetime‭  ·  last activity 4mo ago by radarek‭

71%
+3 −0
Find the IP address class

5 answers  ·  posted 5mo ago by Razetime‭  ·  last activity 4mo ago by dino‭

87%
+12 −0
Partial Sums of Harmonic Series

10 answers  ·  posted over 1 year ago by Quintec‭  ·  last activity 4mo ago by Bubbler‭

60%
+1 −0
Stairs? Stairs! Stairs.

7 answers  ·  posted 8mo ago by IDoYTSoSubHaha‭  ·  last activity 4mo ago by radarek‭

77%
+5 −0
Roll n fair dice

7 answers  ·  posted 9mo ago by Moshi‭  ·  last activity 4mo ago by radarek‭

80%
+6 −0
Operation "Find The Operator"

5 answers  ·  posted 7mo ago by IDoYTSoSubHaha‭  ·  last activity 4mo ago by radarek‭

84%
+9 −0
Cumulative Counts

11 answers  ·  posted 1y ago by rak1507‭  ·  last activity 4mo ago by radarek‭

77%
+5 −0
Diagonalized alphabet

7 answers  ·  posted 11mo ago by Razetime‭  ·  last activity 4mo ago by radarek‭

87%
+12 −0
Evaluate a single variable polynomial equation

20 answers  ·  posted over 1 year ago by moony‭  ·  last activity 4mo ago by south‭

75%
+4 −0
Given the preorder and the inorder of a tree, output the postorder

2 answers  ·  posted over 1 year ago by Hakerh400‭  ·  last activity 4mo ago by radarek‭

75%
+4 −0
Compute the determinant

8 answers  ·  posted 9mo ago by Moshi‭  ·  last activity 4mo ago by radarek‭

75%
+4 −0
Prime Difference

8 answers  ·  posted over 1 year ago by Quintec‭  ·  last activity 4mo ago by radarek‭

85%
+10 −0
Weave Strings Together

13 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 4mo ago by radarek‭

86%
+11 −0
Merge two strings

8 answers  ·  posted 1y ago by rak1507‭  ·  last activity 4mo ago by radarek‭

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

13 answers  ·  posted 9mo ago by user‭  ·  last activity 4mo ago by south‭

84%
+9 −0
Coat of Many Colours

6 answers  ·  posted 9mo ago by Shaggy‭  ·  last activity 4mo ago by radarek‭

77%
+5 −0
Repeat the characters

14 answers  ·  posted 8mo ago by celtschk‭  ·  last activity 4mo ago by south‭

63%
+5 −2
Multiply complex numbers.

5 answers  ·  posted 11mo ago by heav‭  ·  last activity 4mo ago by south‭

81%
+7 −0
Evens or Odds - you know this one

14 answers  ·  posted 11mo ago by AndrewTheCodegolfer‭  ·  last activity 4mo ago by radarek‭

81%
+7 −0
Make my number a set

10 answers  ·  posted 1y ago by Wezl‭  ·  last activity 4mo ago by radarek‭

75%
+4 −0
Digit Sum Integer Sequence (working title)

4 answers  ·  posted 8mo ago by Shaggy‭  ·  last activity 4mo ago by radarek‭

81%
+7 −0
Word Set Square

11 answers  ·  posted 1y ago by Razetime‭  ·  last activity 4mo ago by radarek‭

81%
+7 −0
Bytes to Segfault

10 answers  ·  posted over 1 year ago by moony‭  ·  last activity 4mo ago by radarek‭

71%
+3 −0
Generalized Sort

6 answers  ·  posted 9mo ago by Moshi‭  ·  last activity 4mo ago by radarek‭

80%
+6 −0
Golf golf challenge

5 answers  ·  posted 6mo ago by Lundin‭  ·  last activity 4mo ago by radarek‭

84%
+9 −0
1, 2, Fizz, 4, Buzz!

20 answers  ·  posted over 1 year ago by Dion‭  ·  last activity 6mo ago by celtschk‭

71%
+3 −0
Implement Rule 110

1 answer  ·  posted 6mo ago by celtschk‭  ·  last activity 6mo ago by Moshi‭

40%
+0 −1
Tiny Turing-completeness

0 answers  ·  posted 6mo ago by AndrewTheCodegolfer‭  ·  edited 6mo ago by AndrewTheCodegolfer‭

77%
+5 −0
99 Shortened Bottles of Beer

13 answers  ·  posted 10mo ago by IDoYTSoSubHaha‭  ·  last activity 6mo ago by IDoYTSoSubHaha‭

71%
+3 −0
Caesar shift cipher

7 answers  ·  posted 10mo ago by IDoYTSoSubHaha‭  ·  edited 7mo ago by IDoYTSoSubHaha‭

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