Posts

All the articles I've posted.

• LeetCode 735 Asteroid Collision

  2 May, 2026

  Solutions for LeetCode 735, medium, tags: array, stack, simulation.

• LeetCode 2257 Count Unguarded Cells in the Grid

  Updated: 1 May, 2026

  Solutions for LeetCode 2257, medium, tags: array, graph, simulation.

• LeetCode 2461 Maximum Sum of Distinct Subarrays With Length K

  Updated: 1 May, 2026

  Solutions for LeetCode 2461, medium, tags: array, sliding window, hash.

• LeetCode 1574 Shortest Subarray to be Removed to Make Array Sorted

  Updated: 1 May, 2026

  Solutions for LeetCode 1574, medium, tags: array, binary-search, two-pointers.

• LeetCode 1652 Defuse the Bomb

  Updated: 1 May, 2026

  Solutions for LeetCode 1652, easy, tags: array, sliding window.

• System Design - How Linux epoll Works

  1 May, 2026

  How Linux epoll works: the evolution from select/poll, epoll's internal architecture with red-black trees and ready lists, level-triggered vs edge-triggered modes, and a source code walkthrough from the Linux kernel.