Robina Li

Welcome to My Technical Blog

Exploring algorithms, data structures, and software engineering insights

Latest Posts

Oct 29, 2025

LeetCode Templates: Trees

Contents

leetcodetemplatestrees

Oct 29, 2025

LeetCode Templates: Math & Geometry

Contents

leetcodetemplatesmathgeometry

Oct 29, 2025

LeetCode Templates: Graph

Contents

leetcodetemplatesgraph

Oct 29, 2025

LeetCode Templates: Dynamic Programming

Contents

leetcodetemplatesdynamic-programming

Oct 29, 2025

LeetCode Templates: Data Structures

Contents

leetcodetemplatesdata-structures

Oct 29, 2025

LeetCode Templates: Arrays & Strings

Contents

leetcodetemplatesarraysstrings

View All Posts

All Posts

Oct 19, 2025

[Medium] 417. Pacific Atlantic Water Flow

leetcodealgorithmmediumcppdfsbfsgraphproblem-solving

Oct 19, 2025

[Medium] 406. Queue Reconstruction by Height

leetcodealgorithmmediumcppgreedysortinglistproblem-solving

Oct 18, 2025

[Medium] 1856. Maximum Sum of Minimum Product

leetcodealgorithmmediumcppstackmonotonic-stackprefix-sumproblem-solving

Oct 18, 2025

[Medium] 316. Remove Duplicate Letters

leetcodealgorithmmediumcppstackmonotonic-stackgreedyproblem-solving

Oct 17, 2025

[Medium] 648. Replace Words

leetcodealgorithmmediumcpptriehash-setstring-processingproblem-solving

Oct 17, 2025

[Medium] 300. Longest Increasing Subsequence

leetcodealgorithmmediumcppdynamic-programmingdpbinary-searchproblem-solving

Oct 17, 2025

[Medium] 503. Next Greater Element II

leetcodealgorithmmediumcppmonotonic-stackstackproblem-solving

Oct 17, 2025

[Medium] 2799. Count Complete Subarrays in an Array

leetcodealgorithmmediumcppsliding-windowhash-mapproblem-solving

Oct 17, 2025

[Medium] 2466. Count Ways To Build Good Strings

leetcodealgorithmmediumcppdynamic-programmingdpproblem-solving

Oct 16, 2025

[Medium] 1124. Longest Well-Performing Interval

leetcodealgorithmmediumcpphash-mapprefix-sumproblem-solving