- www.leetcode.com/
- www.codeforces.com/
- www.codewars.com/
- www.codechef.com/
- www.algoleague.com/
- www.hackerrank.com/
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https://www.geeksforgeeks.org/top-10-algorithms-in-interview-questions/
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https://github.com/ombharatiya/FAANG-Coding-Interview-Questions#faang-must-do-problems ,
How to start Competitive Programming videos: https://www.youtube.com/watch?v=xAeiXy8-9Y8
- https://codeforces.com/
- https://cses.fi/problemset/
- https://www.hackerrank.com/
- https://leetcode.com/
- https://codeforwin.org/
- https://algoleague.com/
- https://www.youtube.com/watch?v=KJgsSFOSQv0
- https://codeforwin.org/
- https://www.youtube.com/watch?v=cYxpwHyPjT4&list=PLeBiefaYeU36bhvfFNQ69HjpP6OQhs1OC
- https://www.w3schools.com/c/
- https://www.freecodecamp.org/news/the-c-beginners-handbook/#arrays
- https://bcebakhtiyarpur.org/wp-content/uploads/2020/03/file_5e747d69ab58e.pdf (I think websites is better.)