Coding Challenges

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

Easy

Find two numbers that add up to a target.

50 XP Start Challenge

Beginner

Implement binary search algorithm.

100 XP Start Challenge

Easy

Detect a cycle in a linked list.

50 XP Start Challenge

Intermediate

Print numbers with fizz/buzz rules.

250 XP Start Challenge

Easy

Print numbers from 1 to 100 with Fizz for multiples of 3, Buzz for 5, and FizzBuzz for both.

50 XP Start Challenge

Easy

Check if a given string is a palindrome.

50 XP Start Challenge