Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed.  For example, flipping [1, 1, 0] horizontally results in [0,…

题目描述 给定一个二进制矩阵 A,我们想先水平翻转图像,然后反转图像并返回结果. 水平翻转图片就是将图片的每一行都进行翻转,即逆序.例如,水平翻转 [1, 1, 0] 的结果是 [0, 1, 1]. 反转图片的意思是图片中的 0 全部被 1 替换, 1 全部被 0 替换.例如,反转 [0, 1, 1] 的结果是 [1, 0, 0]. 示例 1: 输入: [[1,1,0],[1,0,1],[0,0,0]] 输出: [[1,0,0],[0,1,0],[1,1,1]] 解释: 首先翻转每一行: [[0…

Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed. For example, flipping [1, 1, 0] horizontally results in [0, 1…

题目要求 Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed.  For example, flipping [1, 1, 0] horizontally results in…

Question 832. Flipping an Image Solution 题目大意:将1列与最后n列对换,2列与n-1列对换-然后再将每个元素取反 思路:遍历二维数组的左半边,对每个元素先做对换再取反 Java实现: public int[][] flipAndInvertImage(int[][] A) { // flip and reverse for (int row=0; row<A.length; row++) { for (int col=0; col<=A[row].le…

problem 832. Flipping an Image solution1: class Solution { public: vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) { ].size(); vector<vector<int>> res(m); ; i<m; ++i) { ; j<n; ++j) { res[i].push…

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 翻转 + 异或 直接计算 日期 题目地址:https://leetcode.com/problems/flipping-an-image/description/ 题目描述 Given a binary matrix A, we want to flip the image horizontally, then invert it, and retu…

Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed.  For example, flipping [1, 1, 0] horizontally results in [0,…

On a table are N cards, with a positive integer printed on the front and back of each card (possibly different). We flip any number of cards, and after we choose one card. If the number X on the back of the chosen card is not on the front of any card…

1.题目描述 给定一个二进制矩阵 A,我们想先水平翻转图像,然后反转图像并返回结果. 水平翻转图片就是将图片的每一行都进行翻转,即逆序.例如,水平翻转 [1, 1, 0] 的结果是 [0, 1, 1]. 反转图片的意思是图片中的 0 全部被 1 替换, 1 全部被 0 替换.例如,反转 [0, 1, 1] 的结果是 [1, 0, 0]. 示例 1: 输入: [[,,],[,,],[,,]] 输出: [[,,],[,,],[,,]] 解释: 首先翻转每一行: [[,,],[,,],[,,]]: 然…

832. 翻转图像 给定一个二进制矩阵 A,我们想先水平翻转图像,然后反转图像并返回结果. 水平翻转图片就是将图片的每一行都进行翻转,即逆序.例如,水平翻转 [1, 1, 0] 的结果是 [0, 1, 1]. 反转图片的意思是图片中的 0 全部被 1 替换, 1 全部被 0 替换.例如,反转 [0, 1, 1] 的结果是 [1, 0, 0]. 示例 1: 输入: [[1,1,0],[1,0,1],[0,0,0]] 输出: [[1,0,0],[0,1,0],[1,1,1]] 解释: 首先翻转每一行…

Flipping an Image Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed.  For example, flipping [1, 1, 0] horizontal…

class Solution { public: vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) { for(vector<int> &vi:A) { for(int &i:vi) i^=; reverse(vi.begin(),vi.end()); } return A; } };…

解答 class Solution { public: vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) { for(auto it1=A.begin();it1!=A.end();++it1){ vector<int> & v_temp=*it1; reverse(v_temp.begin(),v_temp.end()); for(int it2=0;i…

Note: 后面数字n表明刷的第n + 1遍, 如果题目有**, 表明有待总结 Conclusion questions: [LeetCode] questions conclustion_BFS, DFS LeetCode questions conclustion_Path in Tree [LeetCode] questions conlusion_InOrder, PreOrder, PostOrder traversal [LeetCode] questions for Dynamic…

All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) .   Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…

804. Unique Morse Code Words (Easy)# International Morse Code defines a standard encoding where each letter is mapped to a series of dots and dashes, as follows: "a" maps to ".-", "b" maps to "-...", "c" m…

Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontally means that each row of the image is reversed.  For example, flipping [1, 1, 0] horizontally results in [0,…

这是悦乐书的第324次更新,第347篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第194题(顺位题号是832).给定二进制矩阵A,我们想要水平翻转图像,然后反转它,并返回结果图像. 水平翻转图像意味着图像的每一行都是相反的. 例如,水平翻转[1,1,0]会产生[0,1,1]. 反转图像意味着每个0替换为1,每个1替换为0.例如,反转[0,1,1]会产生[1,0,0]. 例如: 输入:[[1,1,0],[1,0,1],[0,0,0]] 输出:[[1,0,0],[0,…

We have a two dimensional matrix A where each value is 0 or 1. A move consists of choosing any row or column, and toggling each value in that row or column: changing all 0s to 1s, and all 1s to 0s. After making any number of moves, every row of this…

Description On a table are N cards, with a positive integer printed on the front and back of each card (possibly different). We flip any number of cards, and after we choose one card. If the number X on the back of the chosen card is not on the front…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/card-flipping-game/description/ 题目描述: On a table are N cards, with a positive integer printed on the front and back of each card (possibly different). We flip…

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 日期 题目地址:https://leetcode.com/problems/score-after-flipping-matrix/description/ 题目描述 We have a two dimensional matrix A where each value is 0 or 1. A move consists of choosing a…

给定一个二进制矩阵 A,我们想先水平翻转图像,然后反转图像并返回结果. 水平翻转图片就是将图片的每一行都进行翻转,即逆序.例如,水平翻转 [1, 1, 0] 的结果是 [0, 1, 1]. 反转图片的意思是图片中的 0 全部被 1 替换, 1 全部被 0 替换.例如,反转 [0, 1, 1] 的结果是 [1, 0, 0]. 示例 1: 输入: [[1,1,0],[1,0,1],[0,0,0]] 输出: [[1,0,0],[0,1,0],[1,1,1]] 解释: 首先翻转每一行: [[0,1,1]…

1.题目描述 2.题目分析 使用C++的迭代器 3.代码 vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) { for( vector<vector<int>>::iterator it = A.begin() ; it != A.end() ; it++ ) { ; it_b <= it_e ; it_b++ ,it_e-- ) { int t…

题目如下: 解题思路:本题需要知道一个数字规律,即pow(2,n) > sum(pow(2,0)+pow(2,1)+...+pow(2,n-1)).所以,为了获得最大值,要保证所有行的最高位是1,即需要优先进行行变换,把最高位变成1.接下来就是列变换,把0多于1的列做变换变成1多于0的列即可. 代码如下: class Solution(object): def matrixScore(self, A): """ :type A: List[List[int]] :rty…

请点击页面左上角 -> Fork me on Github 或直接访问本项目Github地址:LeetCode Solution by Swift    说明:题目中含有$符号则为付费题目. 如:[Swift]LeetCode156.二叉树的上下颠倒 $ Binary Tree Upside Down 请下拉滚动条查看最新 Weekly Contest!!! Swift LeetCode 目录 | Catalog 序        号 题名Title 难度     Difficulty  两数之…

Contest 81 (2018年11月8日,周四,凌晨) 链接:https://leetcode.com/contest/weekly-contest-81 比赛情况记录:结果:3/4, ranking: 440/2797.这次题目似乎比较简单,因为我比赛的时候前三题全做出来了(1:12:39),然后第四题有思路,正在写,没写完,比赛完了写完提交也对了. [821]Shortest Distance to a Character(第一题 4分) 给了一个单词(字符串)s,和单词中的任意一个字母…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 把自己刷过的所有题目做一个整理,并且用简洁的语言概括了一下思路,汇总成了一个表格. 题目的排列顺序是按照先Easy再Medium再Hard排列的,暂时还没有把题目全部整理完成.后序我会把刷过的所有的题目都整理到这个文档里. 题目 难度 解法 题目地址 566. Reshape the Matrix Easy 变长数组,求余法,维护行列计算在新的数组中的位置 https://blog.c…

You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip twoconsecutive "++" into "--". The game ends when a person can no longer…