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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
71%
+3 −0
Caesar shift cipher

7 answers  ·  posted 3mo ago by Mark Giraffe‭  ·  edited 7d ago by Mark Giraffe‭

57%
+2 −1
Make $2 + 2 = 5$

11 answers  ·  posted 2mo ago by Mark Giraffe‭  ·  last activity 7d ago by Mark Giraffe‭

85%
+10 −0
Reverse an ASCII string

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

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
99 Shortened Bottles of Beer

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

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

2 answers  ·  posted 19d ago by celtschk‭  ·  last activity 11d ago by Moshi‭

71%
+3 −0
Operation "Find The Operator"

3 answers  ·  posted 18d ago by Mark Giraffe‭  ·  edited 16d ago by Mark Giraffe‭

66%
+2 −0
Convert integer to English

3 answers  ·  posted 26d ago by celtschk‭  ·  last activity 19d ago by Moshi‭

71%
+3 −0
Find good coalitions

2 answers  ·  posted 20d ago by celtschk‭  ·  last activity 20d ago by Moshi‭

91%
+20 −0
"Hello, World!"

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

81%
+7 −0
Truthify an array

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

57%
+2 −1
"Hello, {name}!"

12 answers  ·  posted 2mo ago by Mark Giraffe‭  ·  last activity 21d ago by Mark Giraffe‭

84%
+9 −0
Obligatory Quine Challenge

9 answers  ·  posted 11mo ago by ATaco‭  ·  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

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

2 answers  ·  posted 23d ago by celtschk‭  ·  last activity 21d ago by Mark Giraffe‭

84%
+9 −0
1, 2, Fizz, 4, Buzz!

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

75%
+4 −0
Repeat the characters

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

66%
+2 −0
Define a mathematical expression in English

1 answer  ·  posted 2mo ago by Mark Giraffe‭  ·  edited 26d 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

75%
+4 −0
Word Count Tool

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

75%
+4 −0
The Ludic Numbers

3 answers  ·  posted 1mo ago by Razetime‭  ·  last activity 29d ago by Mark Giraffe‭

75%
+4 −0
Decode periodic decimal fractions

2 answers  ·  posted 1mo ago by celtschk‭  ·  edited 29d ago by Mark Giraffe‭

60%
+1 −0
Stairs? Stairs! Stairs.

6 answers  ·  posted 2mo ago by Mark Giraffe‭  ·  last activity 1mo ago by A username‭

66%
+2 −0
Reverse your quine

4 answers  ·  posted 1mo ago by Mark Giraffe‭  ·  last activity 1mo ago by celtschk‭

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

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

66%
+2 −0
Compute the determinant

6 answers  ·  posted 2mo ago by Moshi‭  ·  last activity 1mo ago by Peter Taylor‭

83%
+8 −0
It's Hip to be Square

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

66%
+2 −0
Expand a polynomial

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

71%
+3 −0
Abbreviate everything

3 answers  ·  posted 1mo ago by Mark Giraffe‭  ·  last activity 1mo ago by Hakerh400‭

84%
+9 −0
Create an Alphabet Diamond

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

60%
+1 −0
Getting perfect squares, differently

7 answers  ·  posted 2mo ago by Mark Giraffe‭  ·  last activity 1mo ago by Mark Giraffe‭

71%
+3 −0
A number adder, not a death adder

9 answers  ·  posted 4mo ago by AndrewTheCodegolfer‭  ·  last activity 1mo ago by Mark Giraffe‭

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

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

71%
+3 −0
When The Ternary Is Balance

3 answers  ·  posted 2mo ago by Razetime‭  ·  last activity 1mo ago by Moshi‭

71%
+3 −0
Digit Sum Integer Sequence (working title)

3 answers  ·  posted 2mo ago by Shaggy‭  ·  last activity 2mo ago by Mark Giraffe‭

83%
+8 −0
Are All Elements Equal?

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

75%
+4 −0
Diagonalized alphabet

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

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

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

80%
+6 −0
Word Set Square

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

80%
+6 −0
Golf a FRACTRAN interpreter

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

66%
+2 −0
Make my value binary

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

66%
+2 −0
Generalized Sort

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

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

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

75%
+4 −0
Roll n fair dice

5 answers  ·  posted 2mo ago by Moshi‭  ·  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_‭

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

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

71%
+3 −0
Write a Deadfish Interpreter

4 answers  ·  posted 9mo ago by Razetime‭  ·  last activity 2mo ago by A username‭

71%
+3 −0
Multiply two strings

6 answers  ·  posted 2mo ago by celtschk‭  ·  last activity 2mo ago by Hakerh400‭

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