Data Structure & Algorithm

Coding Question

What's Included

Practice the most tested coding interview topics: arrays, graphs, trees and dynamic programming. Problems tagged by company frequency and difficulty level.

Highlights

Real coding questions reported in top-tier technical interviews

Optimal solutions with time & space complexity explained

Covers arrays, trees, graphs, recursion & all core DSA topics

Tagged by company frequency & difficulty level

24k+students

20k+reported

598problems

100+hours

All Coding Questions

598 questions

Shopping Cart Checkout

+2 more

NEW

Asked by

Hash Table

Medium

Fault-Tolerant Work Queue

+1 more

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Asked by

Design

Hard

Referral Credit Tracker

+1 more

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Asked by

Design

Medium

Maximize Deployment Score

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Asked by

Sorting

Medium

Largest Tree Root

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Asked by

DFS

Medium

1 days ago

Delete a Forest Subtree

+1 more

Asked by

DFS

Medium

Apply Domain Request Limits

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Asked by

Hash Table

Medium

1 weeks ago

Minimum Nondecreasing Increment

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Asked by

Array

Easy

1 days ago

Maximum Distinct Split Sum

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Asked by

Array

Easy

Group Loans by Top-Level Company

+1 more

Asked by

Hash Table

Medium

1 months ago

Updated: Oct 10, 2026