Not only does LeetCode prepare candidates for technical interviews, we also help companies identify top technical talent. From sponsoring contests to providing online assessments and …

Limited Time Offer. Save up to 34% off for the LeetCode Premium annually for a continued lifetime at $119!

Can you solve this real interview question? Number of Islands - Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the ...

On LeetCode, you can use tutorials and study plans to learn fundamental and advanced data structures and algorithms, compete in contests, use guides to prepare for top companies, …

Can you solve this real interview question? Longest Common Prefix - Write a function to find the longest common prefix string amongst an array of strings. If there is ...

With a vast amount of technical resources and over 2000 authentic company interview questions, LeetCode is the leading professional online tech platform to help you enhance your skills, …

Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.

LeetCode 75 Summary 75 Essential & Trending Problems Must-do problem list for interview prep Best for 1~3 month of prep time

What others are saying about us? “I gained all my coding skills from LeetCode, the reward is two on-site interviews with Facebook and Linkedln, respectively. I am lucky to get Facebook’s job …

Must-do List for Interview Prep