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Example: coding challenges
Coding Challenge Websites: (Best 10 Websites)
// Just copy the url of a website and paste it on a new tab!
Beginner — Advanced
1. https://edabit.com/
2. https://www.codingame.com/start
3. https://www.codewars.com/
4. https://atcoder.jp/
Intermediate — Advanced
5. https://projecteuler.net/
6. https://www.hackerrank.com/dashboard
7. https://leetcode.com/
8. http://www.pythonchallenge.com/
9. https://www.codechef.com/
10. https://codeforces.com/