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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
75%
+4 −0
Create a range grid

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

77%
+5 −0
Looping counter

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

84%
+9 −0
Can you give me half?

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

75%
+4 −0
Keyword golfing

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

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

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

71%
+3 −0
Find the IP address class

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

80%
+6 −0
Golf golf challenge

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

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

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

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

66%
+2 −0
Run-length encode a byte sequence

2 answers  ·  posted 7mo 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

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
Convert integer to English

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

66%
+2 −0
Reverse your quine

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

75%
+4 −0
The Ludic Numbers

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

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

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

75%
+4 −0
Decode periodic decimal fractions

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

71%
+3 −0
Abbreviate everything

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

66%
+2 −0
Expand a polynomial

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

77%
+5 −0
Repeat the characters

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

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

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

60%
+1 −0
Stairs? Stairs! Stairs.

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

71%
+3 −0
When The Ternary Is Balance

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

57%
+2 −1
"Hello, {name}!"

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

71%
+3 −0
Generalized Sort

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

66%
+2 −0
Make my value binary

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

75%
+4 −0
Compute the determinant

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

55%
+3 −2
Make $2 + 2 = 5$

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

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

77%
+5 −0
Roll n fair dice

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

80%
+6 −0
In The Jailhouse Now

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

71%
+3 −0
Multiply two strings

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

33%
+1 −4
Small integer swapping

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

84%
+9 −0
Coat of Many Colours

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

60%
+1 −0
Getting perfect squares, differently

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

84%
+9 −0
Are All Elements Equal?

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

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

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

77%
+5 −0
99 Shortened Bottles of Beer

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

84%
+9 −0
It's Hip to be Square

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

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

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

77%
+5 −0
Gamer Meme Creator

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

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

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

66%
+2 −0
Three Number Monte

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

71%
+3 −0
Caesar shift cipher

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

75%
+4 −0
Add two negabinary integers

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

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

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

77%
+5 −0
Shuffle a subset of a list

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

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