Algorithms, Explained Visually.

Pick a problem to explore with interactive animations.

Longest Substring Without Repeating Characters

Sliding Window

Subarray Sum Equals K

Prefix Sum + HashMap

Top K Frequent Elements

Heap / PriorityQueue

Capacity To Ship Packages Within D Days

Binary Search

Merge Intervals

Greedy + Sorting

Two Sum

Array + HashMap

Learn Data Structures

Arrays

Linked List

Stack

Queue