Posts

All the articles I've posted.

• LeetCode 986 Interval List Intersections

  13 Aug, 2026

  Solutions for LeetCode 986, medium, tags: array, two pointers.

• LeetCode 227 Basic Calculator II

  13 Aug, 2026

  Solutions for LeetCode 227, medium, tags: math, string, stack.

• LeetCode 2616 Minimize the Maximum Difference of Pairs

  12 Aug, 2026

  Solutions for LeetCode 2616, medium, tags: array, binary search, greedy, sorting.

• LeetCode 221 Maximal Square

  12 Aug, 2026

  Solutions for LeetCode 221, medium, tags: dynamic programming, matrix.

• System Design - How CPU Memory Ordering and Memory Models Work

  12 Aug, 2026

  How CPU memory ordering works: why instructions execute out of order, store buffers, the x86-TSO and ARM/RISC-V relaxed models, memory barriers, and how languages like C++ and Go map atomic operations to hardware fences.

• LeetCode 332 Reconstruct Itinerary

  11 Aug, 2026

  Solutions for LeetCode 332, hard, tags: graph, depth-first search, Eulerian path.