Dev Leveling

Coding Challenges

Solve real-world problems, earn points, and level up your coding skills.

Latest Challenges

Matrix Transpose

Intermediate

Transpose a given 2D matrix.

250 XP Start Challenge

Count Vowels

Beginner

Count the number of vowels in a string.

100 XP Start Challenge

Caesar Cipher

Intermediate

Implement Caesar cipher for basic text encryption.

250 XP Start Challenge

Word Frequency Counter

Beginner

Count the frequency of each word in a sentence.

100 XP Start Challenge

Flatten Nested List

Expert

Flatten a deeply nested list into a flat one.

750 XP Start Challenge

LRU Cache

Legendary

Design and implement an LRU cache.

1000 XP Start Challenge