Posts

All the articles I've posted.

• LeetCode 23 LintCode 104 Merge K Sorted Lists

  Published:Jun 21, 2025 |  at 06:23 AM

  Solutions for LeetCode 23 and LintCode 104, hard, tags: heap, divide and conquer, linked list, merge sort.

• System Design - All about Caching

  Published:Jun 18, 2025 |  at 06:23 AM

  system design basics, all about caching (cache)

• LeetCode 21 LintCode 165 Merge Two Sorted Lists

  Published:Jun 5, 2025 |  at 06:23 AM

  Solutions for LeetCode 21 and LintCode 165, easy, tags: heap, divide and conquer, linked list, merge sort, companies: microsoft

• LeetCode 658 LintCode 460 Find K Closest Elements

  Published:Mar 24, 2025 |  at 06:23 AM

  Solutions for LeetCode 658 LintCode 460, medium, tags: array, binary-search, sliding-window, sorting, heap; companies: google.

• LeetCode 2539 LintCode 3855 Count the Number of Good Subsequences

  Published:Mar 21, 2025 |  at 06:23 AM

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

• System Design - How do Websockets Work

  Published:Mar 15, 2025 |  at 06:23 AM

  How do websockets work comparing to http?