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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
92%
+23 −0
"Hello, World!"

58 answers  ·  posted almost 2 years ago by anna328p‭  ·  last activity 13h ago by __blackjack__‭

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

12 answers  ·  posted almost 2 years ago by dzaima‭  ·  last activity 1y ago by snail_‭

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

20 answers  ·  posted almost 2 years ago by moony‭  ·  last activity 8mo ago by south‭

87%
+12 −0
Print the Great Numeric Pyramid

5 answers  ·  posted almost 2 years ago by Sisyphus‭  ·  last activity over 1 year ago by Marshall Lochbaum‭

87%
+12 −0
Partial Sums of Harmonic Series

11 answers  ·  posted almost 2 years ago by Quintec‭  ·  last activity 1mo ago by south‭

86%
+11 −0
Weave Strings Together

13 answers  ·  posted almost 2 years ago by Razetime‭  ·  last activity 8mo ago by radarek‭

86%
+11 −0
Reverse an ASCII string

27 answers  ·  posted almost 2 years ago by moony‭  ·  last activity 6mo ago by celtschk‭

86%
+11 −0
Merge two strings

8 answers  ·  posted over 1 year ago by rak1507‭  ·  last activity 8mo ago by radarek‭

85%
+10 −0
Can you give me half?

20 answers  ·  posted 8mo ago by Razetime‭  ·  last activity 1d ago by south‭

85%
+10 −0
Are All Elements Equal?

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

85%
+10 −0
It's Hip to be Square

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

85%
+10 −0
Create an Alphabet Diamond

11 answers  ·  posted over 1 year ago by dzaima‭  ·  last activity 1y ago by General Sebast1an‭

85%
+10 −0
Cumulative Counts

18 answers  ·  posted over 1 year ago by rak1507‭  ·  last activity 1d ago by Moshi‭

84%
+9 −0
Obligatory Quine Challenge

9 answers  ·  posted almost 2 years ago by ATaco‭  ·  last activity 12mo ago by General Sebast1an‭

84%
+9 −0
Length of a Sumac Sequence

9 answers  ·  posted almost 2 years ago by Razetime‭  ·  edited 1y ago by General Sebast1an‭

84%
+9 −0
1, 2, Fizz, 4, Buzz!

20 answers  ·  posted almost 2 years ago by Dion‭  ·  last activity 10mo ago by celtschk‭

84%
+9 −0
Coat of Many Colours

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

83%
+8 −0
Looping counter

18 answers  ·  posted 5mo ago by celtschk‭  ·  last activity 13h ago by south‭

83%
+8 −0
Golf a FRACTRAN interpreter

8 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 4mo ago by torres‭

83%
+8 −0
Solve Goldbach's Conjecture

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

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

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

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

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

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

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

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

81%
+7 −0
Find n Niven Numbers

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

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

16 answers  ·  posted over 1 year ago by AndrewTheCodegolfer‭  ·  last activity 2mo ago by Olin Lathrop‭

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

7 answers  ·  posted over 1 year ago by rak1507‭  ·  last activity over 1 year ago by Shaggy‭

81%
+7 −0
Backspace an array

6 answers  ·  posted over 1 year ago by rak1507‭  ·  last activity 1y ago by Shaggy‭

81%
+7 −0
Make my number a set

10 answers  ·  posted over 1 year ago by Wezl‭  ·  last activity 8mo ago by radarek‭

81%
+7 −0
Word Set Square

11 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 9mo ago by radarek‭

81%
+7 −0
Bytes to Segfault

10 answers  ·  posted almost 2 years ago by moony‭  ·  last activity 9mo ago by radarek‭

81%
+7 −0
Integer to Roman numeral

3 answers  ·  posted almost 2 years ago by Lundin‭  ·  last activity almost 2 years ago by Lundin‭

81%
+7 −0
Truthify an array

10 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 12mo ago by General Sebast1an‭

80%
+6 −0
Is it a near-anagram?

5 answers  ·  posted over 1 year ago by snail_‭  ·  edited 1y ago by General Sebast1an‭

80%
+6 −0
Shape of an array

6 answers  ·  posted almost 2 years ago by Adám‭  ·  last activity 8mo ago by south‭

80%
+6 −0
Golf golf challenge

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

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_‭

80%
+6 −0
Versatile self-printer

1 answer  ·  posted over 1 year ago by AndrewTheCodegolfer‭  ·  last activity 1y ago by General Sebast1an‭

80%
+6 −0
Word Count Tool

9 answers  ·  posted over 1 year ago by Quintec‭  ·  last activity 4mo ago by torres‭

80%
+6 −0
Beaver Code Decryption

6 answers  ·  posted over 1 year ago by rak1507‭  ·  last activity 1y ago by Shaggy‭

80%
+6 −0
Juggler sequences

9 answers  ·  posted over 1 year ago by caird coinheringaahing‭  ·  last activity 1y ago by Shaggy‭

80%
+6 −0
Write a Deadfish Interpreter

8 answers  ·  posted over 1 year ago by Razetime‭  ·  last activity 5mo ago by Zakk‭

77%
+5 −0
Given the preorder and the inorder of a tree, output the postorder

2 answers  ·  posted almost 2 years ago by Hakerh400‭  ·  last activity 8mo ago by radarek‭

77%
+5 −0
Longest parallel lines

1 answer  ·  posted over 1 year ago by rak1507‭  ·  edited over 1 year ago by rak1507‭

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

4 answers  ·  posted 1y ago by Razetime‭  ·  last activity 1y ago by user‭

77%
+5 −0
99 Shortened Bottles of Beer

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

77%
+5 −0
Prime Difference

8 answers  ·  posted almost 2 years ago by Quintec‭  ·  last activity 8mo ago by radarek‭

77%
+5 −0
Repeat the characters

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

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