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| Spec | HackerRank | LeetCode | Codewars |
|---|---|---|---|
| Category | Education & Learning | Education & Learning | Education & Learning |
| Pricing | Free practice + paid hiring products | Free + Premium | Free + Premium |
| Rating | 4.5 (186,000) | 4.6 (92,000) | 4.7 (186,000) |
| Community | 87/100 | 90/100 | 92/100 |
| Tier | featured | featured | featured |
| Best for | coding, interview, algorithms, practice | algorithms, interview, coding, practice | coding, katas, practice, languages |
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