Posts

All the articles I've posted.

• 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? System Design Basics, websockets

• LeetCode 2450 LintCode 3841 Number of Distinct Binary Strings After Applying Operations

  Updated:Feb 22, 2025 |  at 06:23 AM

  Solutions for LeetCode 2450 LintCode 3841, medium, tags: math, string.

• LeetCode 206 LintCode 35 Reverse Linked List

  Published:Jan 30, 2025 |  at 06:23 AM

  Solutions for LeetCode 206 LintCode 35, easy, tags: linked list, recursion; companies: bytedance.

• LeetCode 1166 LintCode 3677 Design File System

  Published:Jan 28, 2025 |  at 06:23 AM

  Solutions for LeetCode 1166 LintCode 3677, medium, tags: hash table, trie, string, design.

• How could we interview job candidates to find the right teammates? Why should we care?

  Updated:Jan 23, 2025 |  at 10:12 AM

  how should we interview other job candidates to find the teammates we like? tips and suggestions on how to interview teammate or junior engineers.