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DSA and Leetcode Resources

This page mirrors the DSA and Leetcode section from the community wiki, including starter tracks, practice portals, and books.

Source page on Reddit

Starter Guides

How to Start DSA - developersIndia community wiki
A guide to grinding Leetcode
Competitive Programming Resources
Competitive Programming Resources Part 2.1

Practice Platforms

LeetCode
HackerRank
CodeSignal
GeeksforGeeks
Codeforces
TopCoder
InterviewBit
Codewars
Project Euler
SPOJ

Courses and References

Khan Academy - Algorithms
Coursera - Algorithms Specialization
MIT OpenCourseWare - Introduction to Algorithms
CP-Algorithms
LeetCode Patterns
Big-O Cheat Sheet

Books

Cracking the Coding Interview
Introduction to Algorithms
A Common-Sense Guide to Data Structures and Algorithms
Grokking Algorithms
Competitive Programmer's Handbook