Tag: leetcode-locked

All the articles with the tag "leetcode-locked".

• LeetCode 631 Design Excel Sum Formula

  4 Apr, 2026

  Solutions for LeetCode 631, hard, tags: design, graph, depth-first search, topological sort.

• LeetCode 2539 LintCode 3855 Count the Number of Good Subsequences

  21 Mar, 2025

  Solutions for LeetCode 2539 LintCode 3855, hard, tags: enumerate, string, hash table, math, combinatorics, counting.

• LeetCode 2450 LintCode 3841 Number of Distinct Binary Strings After Applying Operations

  Updated: 22 Feb, 2025

  Solutions for LeetCode 2450 LintCode 3841, medium, tags: math, string.

• LeetCode 1650 LintCode 474 Lowest Common Ancestor of a Binary Tree III

  9 Dec, 2024

  Solutions for LeetCode 1650 LintCode 474, medium, tags: binary tree, hash table, two pointers; companies: microsoft.

• LeetCode 408 LintCode 637 Valid Word Abbreviation

  9 Dec, 2024

  Solutions for LeetCode 408 LintCode 637, easy, tags: two pointers, string, companies: facebook, google.

• LeetCode 3167 HackerRank Better Compression

  26 Nov, 2024

  Solutions for LeetCode 3167 HackerRank Better Compression, tags: string, hash table, companies: salesforce.