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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.

108 posts · Subscribe
60%
+1 −0
50%
+0 −0
Rationalise recurring binary

0 answers  ·  posted 1d ago by trichoplax‭  ·  edited 1d ago by trichoplax‭

60%
+1 −0
Chequer checker

1 answer  ·  posted 6d ago by trichoplax‭  ·  edited 4d ago by trichoplax‭

71%
+3 −0
Presumptuous base conversion

5 answers  ·  posted 10d ago by trichoplax‭  ·  last activity 6d ago by Shaggy‭

66%
+2 −0
Mark my beacons

0 answers  ·  posted 17d ago by Razetime‭  ·  last activity 1d ago by Moshi‭

81%
+7 −0
Find n Niven Numbers

7 answers  ·  posted 2mo ago by Razetime‭  ·  last activity 20d ago by Shaggy‭

71%
+3 −0
Make a frequency table (histogram)

10 answers  ·  posted 3mo ago by Razetime‭  ·  last activity 16d ago by Moshi‭

71%
+3 −0
From the smallest seed

2 answers  ·  posted 4mo ago by Moshi‭  ·  last activity 4mo ago by orthoplex‭

75%
+4 −0
Create a range grid

8 answers  ·  posted 5mo ago by Razetime‭  ·  last activity 20d ago by Shaggy‭

83%
+8 −0
Looping counter

18 answers  ·  posted 5mo ago by celtschk‭  ·  last activity 14h ago by south‭

85%
+10 −0
Can you give me half?

20 answers  ·  posted 8mo ago by Razetime‭  ·  last activity 2d ago by south‭

75%
+4 −0
Keyword golfing

6 answers  ·  posted 8mo ago by Lundin‭  ·  last activity 4mo ago by Lundin‭

81%
+7 −0
Determine whether an integer is square-free

13 answers  ·  posted 9mo ago by celtschk‭  ·  last activity 3d ago by Shaggy‭

75%
+4 −0
Find the IP address class

6 answers  ·  posted 10mo ago by Razetime‭  ·  last activity 4mo ago by torres‭

80%
+6 −0
Golf golf challenge

5 answers  ·  posted 10mo ago by Lundin‭  ·  last activity 9mo ago by radarek‭

75%
+4 −0
Implement Rule 110

1 answer  ·  posted 11mo ago by celtschk‭  ·  last activity 11mo ago by Moshi‭

40%
+0 −1
Tiny Turing-completeness

0 answers  ·  posted 11mo ago by AndrewTheCodegolfer‭  ·  edited 11mo ago by AndrewTheCodegolfer‭

81%
+7 −0
Operation "Find The Operator"

5 answers  ·  posted 12mo ago by General Sebast1an‭  ·  last activity 8mo ago by radarek‭

71%
+3 −0
Run-length encode a byte sequence

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

71%
+3 −0
Find good coalitions

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

71%
+3 −0
Encode and decode floating point integers

2 answers  ·  posted 12mo ago by celtschk‭  ·  last activity 12mo ago by General Sebast1an‭

71%
+3 −0
Convert integer to English

3 answers  ·  posted 1y ago by celtschk‭  ·  last activity 12mo ago by Moshi‭

66%
+2 −0
Reverse your quine

4 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 1y ago by celtschk‭

75%
+4 −0
The Ludic Numbers

3 answers  ·  posted 1y ago by Razetime‭  ·  last activity 1y ago by General Sebast1an‭

81%
+7 −0
Collatz conjecture; Count the tries to reach $1$

15 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 4mo ago by torres‭

77%
+5 −0
Decode periodic decimal fractions

2 answers  ·  posted 1y ago by celtschk‭  ·  edited 1y ago by General Sebast1an‭

71%
+3 −0
Abbreviate everything

3 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 1y ago by Hakerh400‭

66%
+2 −0
Expand a polynomial

4 answers  ·  posted 1y ago by Moshi‭  ·  last activity 1y ago by Moshi‭

77%
+5 −0
Repeat the characters

14 answers  ·  posted 1y ago by celtschk‭  ·  last activity 8mo ago by south‭

66%
+2 −0
75%
+4 −0
Digit Sum Integer Sequence (working title)

4 answers  ·  posted 1y ago by Shaggy‭  ·  last activity 9mo ago by radarek‭

60%
+1 −0
Stairs? Stairs! Stairs.

7 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 8mo ago by radarek‭

75%
+4 −0
When The Ternary Is Balance

3 answers  ·  posted 1y ago by Razetime‭  ·  last activity 1y ago by Moshi‭

62%
+3 −1
"Hello, {name}!"

15 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 3mo ago by celtschk‭

71%
+3 −0
Generalized Sort

6 answers  ·  posted 1y ago by Moshi‭  ·  last activity 9mo ago by radarek‭

66%
+2 −0
Make my value binary

14 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 8mo ago by Olin Lathrop‭

75%
+4 −0
Compute the determinant

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

60%
+4 −2
Make $2 + 2 = 5$

18 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 4mo ago by south‭

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

10 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 1y ago by Quintec‭

80%
+6 −0
Roll n fair dice

9 answers  ·  posted 1y ago by Moshi‭  ·  last activity 4mo ago by south‭

80%
+6 −0
In The Jailhouse Now

6 answers  ·  posted 1y ago by Shaggy‭  ·  last activity 1y ago by snail_‭

71%
+3 −0
Multiply two strings

6 answers  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by Hakerh400‭

33%
+1 −4
Small integer swapping

7 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 7mo ago by south‭

84%
+9 −0
Coat of Many Colours

6 answers  ·  posted 1y ago by Shaggy‭  ·  last activity 8mo ago by radarek‭

60%
+1 −0
85%
+10 −0
Are All Elements Equal?

16 answers  ·  posted 1y ago by Razetime‭  ·  last activity 4mo ago by torres‭

81%
+7 −0
Reduce over the range [1..n]

14 answers  ·  posted 1y ago by user‭  ·  last activity 1mo ago by gifti‭

77%
+5 −0
99 Shortened Bottles of Beer

13 answers  ·  posted 1y ago by General Sebast1an‭  ·  last activity 11mo ago by General Sebast1an‭

85%
+10 −0
It's Hip to be Square

20 answers  ·  posted 1y ago by Shaggy‭  ·  last activity 5mo ago by Zakk‭

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