# Hash Table

- [645. Set Mismatch](/practice/hash-table/645.-set-mismatch.md)
- [1488. Avoid Flood in The City](/practice/hash-table/1488.-avoid-flood-in-the-city.md)
- [138. Copy List with Random Pointer](/practice/hash-table/138.-copy-list-with-random-pointer.md)
- [1903. Department Statistics](/practice/hash-table/1903.-department-statistics.md)
