Tag: a-backtracking

All the articles with the tag "a-backtracking".

• LeetCode 17 Letter Combinations of a Phone Number

  16 May, 2026

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

• LeetCode 22 Generate Parentheses

  3 May, 2026

  Solutions for LeetCode 22, medium, tags: string, dynamic programming, backtracking.

• LeetCode 39 Combination Sum

  26 Apr, 2026

  Solutions for LeetCode 39, medium, tags: array, backtracking.

• LeetCode 638 Shopping Offers

  28 Mar, 2026

  Solutions for LeetCode 638, medium, tags: array, dynamic programming, backtracking, bitmask, memoization.

• LeetCode 691 LintCode 1081 Stickers to Spell Word

  17 Dec, 2024

  Solutions for LeetCode 239, hard, tags: array, queue, sliding window, heap, monotonic queue.

• LeetCode 465 LintCode 707 Optimal Account Balancing

  Updated: 22 Nov, 2024

  Solutions for LeetCode 465 LintCode 707, hard, tags: bit, array, dynamic programming, backtracking, bitmask.