Tag: a-hash-table

All the articles with the tag "a-hash-table".

• LeetCode 133 Clone Graph

  19 May, 2026

  Solutions for LeetCode 133, medium, tags: hash table, depth-first search, breadth-first search, graph.

• LeetCode 17 Letter Combinations of a Phone Number

  16 May, 2026

  Solutions for LeetCode 17, medium, tags: hash table, string, backtracking.

• LeetCode 139 Word Break

  8 May, 2026

  Solutions for LeetCode 139, medium, tags: dynamic programming, hash table, string, trie, memoization.

• LeetCode 128 Longest Consecutive Sequence

  26 Apr, 2026

  Solutions for LeetCode 128, medium, tags: array, hash table, union find.

• LeetCode 15 3Sum

  19 Apr, 2026

  Solutions for LeetCode 15, medium, tags: array, two pointers, sorting, hash table.

• LeetCode 347 Top K Frequent Elements

  18 Apr, 2026

  Solutions for LeetCode 347, medium, tags: array, hash table, divide and conquer, sorting, heap, bucket sort, counting, quickselect.