Programming Puzzles

Explore coding challenges from the community

Reverse a String

Write a function to reverse a given string. The input string should be reversed character by character.

by @hackclub_reviewerabout 1 month ago
130.314 ms
Solve

Levenshtein Distance

The Levenshtein distance is a string metric for measuring the difference between two sequences. The Levenshtein distance between two words is the mini...

by @AlimadCoabout 1 month ago
116.5 ms
Solve

Decimal to Binary

Convert a decimal number to a binary number

by @programordieabout 2 months ago
0223 chars
Solve

Unique array elements

Given an array of random numbers, return all each unique number only once.

by @programordieabout 2 months ago
0222 chars
Solve

Is prime?

Check if a given number is a prime or not.

by @programordieabout 2 months ago
140.872 ms
Solve

Emoji Remover

Remove all emojis from a given string.

by @programordieabout 2 months ago
0150 chars
Solve

Roman to Integer

Convert a Roman numeral like "XIV" into its integer value (14).

by @programordieabout 2 months ago