【leetcode】1250. Check If It Is a Good Array

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【leetcode】1250. Check If It Is a Good Array

题目如下: Given an array nums of positive integers. Your task is to select some subset of nums, multiply each element by an integer and add all these numbers. The array is said to be good if you can obtain a sum of 1 from the array by any possible subset…

【LeetCode】1150. Check If a Number Is Majority Element in a Sorted Array 解题报告(C++)

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录题目描述题目大意解题方法字典二分查找日期题目地址:https://leetcode-cn.com/problems/check-if-a-number-is-majority-element-in-a-sorted-array/ 题目描述 Given an array nums sorted in non-decreasing order, and a number t…

【leetcode】1232. Check If It Is a Straight Line

题目如下: You are given an array coordinates, coordinates[i] = [x, y], where [x, y] represents the coordinate of a point. Check if these points make a straight line in the XY plane. Example 1: Input: coordinates = [[1,2],[2,3],[3,4],[4,5],[5,6],[6,7]] Ou…

【LeetCode】1003. Check If Word Is Valid After Substitutions 解题报告（Python）

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录题目描述题目大意解题方法循环日期题目地址:https://leetcode.com/problems/check-if-word-is-valid-after-substitutions/ 题目描述 We are given that the string "abc" is valid. From any valid string V, we may spli…

【LeetCode】958. Check Completeness of a Binary Tree 解题报告（Python & C++）

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录题目描述题目大意解题方法 BFS DFS 日期题目地址:https://leetcode.com/problems/check-completeness-of-a-binary-tree/ 题目描述 Given a binary tree, determine if it is a complete binary tree. Definition of a complete…

【leetcode】1003. Check If Word Is Valid After Substitutions

题目如下: We are given that the string "abc" is valid. From any valid string V, we may split V into two pieces X and Y such that X + Y (X concatenated with Y) is equal to V. (X or Y may be empty.) Then, X + "abc" + Y is also valid. If fo…

【leetcode】958. Check Completeness of a Binary Tree

题目如下: Given a binary tree, determine if it is a complete binary tree. Definition of a complete binary tree from Wikipedia:In a complete binary tree every level, except possibly the last, is completely filled, and all nodes in the last level are as fa…