Posts

All the articles I've posted.

• LeetCode 2415 Reverse Odd Levels of Binary Tree

  Updated: 1 May, 2025

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

• LeetCode 2466 LintCode 3854 Count Ways to Build Good Strings (Number of Good Binary Strings)

  Updated: 1 May, 2025

  Solutions for LeetCode 2466 LintCode 3854, medium, tags: array, dynamic programming.

• LeetCode 3167 HackerRank Better Compression

  Updated: 1 May, 2025

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

• LeetCode 423 LintCode 1247 Reconstruct Original Digits from English

  Updated: 1 May, 2025

  Solutions for LeetCode 423 LintCode 1247, medium, tags: hash table, simulation, math, string.

• LeetCode 542 LintCode 974 01 Matrix and LeetCode 1765 Map of Highest Peak

  Updated: 1 May, 2025

  Solutions for LeetCode 542, LeetCode 1765, and LintCode 974, hard, tags: array, queue, sliding window, heap, monotonic queue.

• 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.