Exercism
Code practice with human mentoring.
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About LeetCode
LeetCode is the standard platform for practicing algorithm and data-structure problems — the de facto preparation for software engineering interviews.
Key features
- 3,000+ curated problems
- Company-tagged questions
- Contests and discussion
Pros
- Directly maps to interviews
- Massive solution community
Cons
- Premium gates company lists
- Grind can eclipse real learning
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