随笔分类 - LeetCode
摘要：Serialize and Deserialize Binary Tree (H) 题目 Serialization is the process of converting a data structure or object into a sequence of bits so that it
阅读全文
摘要：Binary Tree Maximum Path Sum (H) 题目 A path in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge conne
阅读全文
摘要：Maximum Units on a Truck (E) 题目 You are assigned to put some amount of boxes onto one truck. You are given a 2D array boxTypes, where boxTypes[i] = [n
阅读全文
摘要：My Calendar I (M) 题目 Implement a MyCalendar class to store your events. A new event can be added if adding the event will not cause a double booking.
阅读全文
摘要：Construct Binary Tree from Preorder and Inorder Traversal (M) 题目 Given preorder and inorder traversal of a tree, construct the binary tree. Note: You
阅读全文
摘要：Min Cost Climbing Stairs (E) 题目 You are given an integer array cost where cost[i] is the cost of ith step on a staircase. Once you pay the cost, you c
阅读全文
摘要：Longest Consecutive Sequence (M) 题目 Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence. You must
阅读全文
摘要：Open the Lock (M) 题目 You have a lock in front of you with 4 circular wheels. Each wheel has 10 slots: '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'
阅读全文
摘要：Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts (M) 题目 Given a rectangular cake with height h and width w, and two arrays of intege
阅读全文
摘要：Interleaving String (M) 题目 Given strings s1, s2, and s3, find whether s3 is formed by an interleaving of s1 and s2. An interleaving of two strings s a
阅读全文
摘要：Max Area of Island (M) 题目 You are given an m x n binary matrix grid. An island is a group of 1's (representing land) connected 4-directionally (horizo
阅读全文
摘要：Search Suggestions System (M) 题目 Given an array of strings products and a string searchWord. We want to design a system that suggests at most three pr
阅读全文
摘要：Maximum Erasure Value (M) 题目 You are given an array of positive integers nums and want to erase a subarray containing unique elements. The score you g
阅读全文
摘要：Maximum Product of Word Lengths (M) 题目 Given a string array words, return the maximum value of length(word[i]) * length(word[j]) where the two words d
阅读全文
摘要：Partitioning Into Minimum Number Of Deci-Binary Numbers (M) 题目 A decimal number is called deci-binary if each of its digits is either 0 or 1 without a
阅读全文
摘要：Evaluate Reverse Polish Notation (M) 题目 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Eac
阅读全文
摘要：To Lower Case (E) 题目 Given a string s, return the string after replacing every uppercase letter with the same lowercase letter. Example 1: Input: s =
阅读全文
摘要：Find and Replace Pattern (M) 题目 Given a list of strings words and a string pattern, return a list of words[i] that match pattern. You may return the a
阅读全文
摘要：0102. Binary Tree Level Order Traversal (M) 题目 Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, le
阅读全文
摘要：Minimum Moves to Equal Array Elements II (M) 题目 Given an integer array nums of size n, return the minimum number of moves required to make all array e
阅读全文
浙公网安备 33010602011771号