Posts

All the articles I've posted.

• LeetCode 31 Next Permutation

  15 Jun, 2026

  Solutions for LeetCode 31, medium, tags: array, two pointers.

• LeetCode 57 Insert Interval

  15 Jun, 2026

  Solutions for LeetCode 57, medium, tags: array.

• System Design - How JIT (Just-In-Time) Compilation Works

  15 Jun, 2026

  How JIT compilation works: interpreter warm-up, profiling, tiered compilation in the JVM HotSpot and V8 engines, inline caches, deoptimization, and source code walkthrough.

• System Design - How the Linux Page Cache Works

  14 Jun, 2026

  How the Linux page cache works: the kernel's transparent caching layer that sits between applications and disk. Covers address_space, radix tree (xarray), readahead, dirty page writeback, memory pressure eviction, and source code walkthrough from the Linux kernel.

• LeetCode 695 Max Area of Island

  14 Jun, 2026

  Solutions for LeetCode 695, medium, tags: array, depth-first search, breadth-first search, union find, matrix.

• LeetCode 115 Distinct Subsequences

  14 Jun, 2026

  Solutions for LeetCode 115, hard, tags: string, dynamic programming.