Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did you use extra space?A straight forward solution using O(mn) space is probably a bad idea.A simple improvement uses O…

Set Matrix Zeroes Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did you use extra space?A straight forward solution using O(mn) space is probably a bad idea.A simple…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. (二)解题 题目大意:给定一个M*N的数组,如果(i,j)为0,则将第i行第j列全部元素置为0. 这道题目意思很简单,如果考虑…

问题描述:将二维数组中值为0的元素,所在行或者列全set为0:https://leetcode.com/problems/set-matrix-zeroes/ 问题分析:题中要求用 constant space 的辅助空间.自然想到位优化.一个int可以存储31个元素的信息.这里刚好用到了字符串论文里面常用的优化处理方法.类似桶分的思想.好吧,这么看来这长时间的论文没白看. 附上代码: void setZeroes(vector<vector<int>>& matrix)…

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 原地操作 新建数组 队列 日期 题目地址:https://leetcode.com/problems/set-matrix-zeroes/description/ 题目描述 Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-pl…

题目: Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. Follow up: Did you use extra space? A straight forward solution using O(mn) space is probably a bad idea. A simple improvement uses O(m + n) space, but…

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. 这题要注意的就是应该是就地执行,所以可以先采取一个数组将所有0元素的位置记下来,然后一次性的全部置成0即可: class Solution { public: void setZeroes(vector<vector<int>>& matrix) { int szHor = matrix.…

Set Matrix Zeroes Total Accepted: 18139 Total Submissions: 58671My Submissions Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. 题意:给定矩阵,假设矩阵的某个位置为0.则把那一行那一列的全部元素都置为0 思路:用两个bool数组,分…

Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in-place. Example 1: Input: [   [1,1,1],   [1,0,1],   [1,1,1] ] Output: [   [1,0,1],   [0,0,0],   [1,0,1] ] Example 2: Input: [   [0,1,2,0],   [3,4,5,2],   [1,3,1,5]…

原题地址 用矩形的第一行和第一列充当mask 代码: void setZeroes(vector<vector<int> > &matrix) { ].empty()) return; bool firstRow = false; bool firstCol = false; int m = matrix.size(); ].size(); ; i < m; i++) ] == ) { firstCol = true; break; } ; j < n; j++…