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Top 150 inteview Problems

This curated list contains 150 problems sorted by topic and difficulty to help you systematically grind and improve your problem-solving skills.


Array / String

Easy

Medium

Hard


Two Pointers

Easy

Medium


Matrix

Medium


Hashmap

Easy

Medium


Intervals

Easy

Medium


Stack

Easy

Medium

Hard


Linked List

Easy

Medium

Hard


Binary Tree

Easy

Medium

Hard


Graph

Medium

Hard


Trie

Medium


Backtracking

Medium

Hard


Easy

Medium

Hard


Heap

Medium

Hard


Sorting

Easy

Medium


Recursion

Easy

Medium


Dynamic Programming

Easy

Medium

Hard


Design

Medium

Hard


Bit Manipulation

Medium

Hard

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