Huachen Wang

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Huachen Wang

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#System Design 1 #Priority Queue 1 #Shortest Path 1 #Greedy 2 # Topological Sort 1 #Graph 2 #Matrix 2 #Breadth-First Search 4 # Depth-First Search 3 #Union Find 2 #Sorting 2 #Recursion 1 #Math 1 #Linked List 1 #Stack 1 #Two Pointers 3 #Dynamic Programming 5 #Divide and Conquer 1 #Array 11 #Sliding Window 1 #String 2 #Hash Table 3
LeetCode Study Note #Greedy#Array#Dynamic Programming

LeetCode Study Note | Problem 45: Jump Game II

🧩 Problem Summary You are given an integer array nums where each element represents your maximum jump length at that position. Your goal is to return

Administrator Administrator Published on 2025-05-19
LeetCode Study Note #Array#Dynamic Programming#Greedy

LeetCode Study Note | Problem 55: Jump Game

🧠 Problem Overview You’re given an integer array nums, where each element represents the maximum jump length from that position. Starting at index 0,

Administrator Administrator Published on 2025-05-19
LeetCode Study Note #Dynamic Programming#Array

LeetCode Study Note | Problem 198: House Robber

🏠 Problem Overview You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, but adjacen

Administrator Administrator Published on 2025-05-18
LeetCode Study Note #Array#Two Pointers#Dynamic Programming#Stack

LeetCode Study Note | Problem 42: Trapping Rain Water

🔍 Problem Description Given a non-negative integer array height[] representing the elevation map where the width of each bar is 1, compute how much w

Administrator Administrator Published on 2025-05-11
LeetCode Study Note #Array#Divide and Conquer#Dynamic Programming

LeetCode Study Note | Problem 53: Maximum Subarray

Problem Overview Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its s

Administrator Administrator Published on 2025-05-10