陳昱瑋[Day 29] 30-Day LeetCoding Challenge — Binary Tree Maximum Path Sum(LC-124)Given a non-empty binary tree, find the maximum path sum.Apr 29, 2020Apr 29, 2020
陳昱瑋[Day 28] 30-Day LeetCoding Challenge — First Unique Number(New Question)You have a queue of integers, you need to retrieve the first unique integer in the queue.Apr 29, 2020Apr 29, 2020
陳昱瑋[Day 27] 30-Day LeetCoding Challenge — Maximal Square(LC-221)Given a 2D binary matrix filled with 0’s and 1’s, find the largest square containing only 1’s and return its area.Apr 28, 2020Apr 28, 2020
陳昱瑋[Day 26] 30-Day LeetCoding Challenge — Longest Common Subsequence(LC-1143)Given two strings text1 and text2, return the length of their longest common subsequence.Apr 28, 2020Apr 28, 2020
陳昱瑋[Day 25] 30-Day LeetCoding Challenge — Jump Game(LC-55)Given an array of non-negative integers, you are initially positioned at the first index of the array.Apr 25, 2020Apr 25, 2020
陳昱瑋[Day 24] 30-Day LeetCoding Challenge — LRU Cache(LC-146)Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and put.Apr 24, 2020Apr 24, 2020
陳昱瑋[Day 2] 30-Day LeetCoding Challenge — Bitwise AND of Numbers Range(LC-201)Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive.Apr 24, 2020Apr 24, 2020
陳昱瑋[Day 22] 30-Day LeetCoding Challenge — Subarray Sum Equals K(LC-560)Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k.Apr 22, 2020Apr 22, 2020
陳昱瑋[Day 21] 30-Day LeetCoding Challenge — Leftmost Column with at Least a One(New Question)(This problem is an interactive problem.)Apr 21, 2020Apr 21, 2020
陳昱瑋[Day 20] 30-Day LeetCoding Challenge — Construct Binary Search Tree from Preorder…Return the root node of a binary search tree that matches the given preorder traversal.Apr 20, 2020Apr 20, 2020