原题链接在这里:https://leetcode.com/problems/regions-cut-by-slashes/ 题目: In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank space.  These characters divide the square into contiguous regions. (Note that backslash chara…

In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank space.  These characters divide the square into contiguous regions. (Note that backslash characters are escaped, so a \ is represented as "\\".) Return the…

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 解题思路 代码 日期 题目地址:https://leetcode.com/problems/regions-cut-by-slashes/description/ 题目描述 In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank spac…

题目如下: In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank space.  These characters divide the square into contiguous regions. (Note that backslash characters are escaped, so a \ is represented as "\\".) Retu…

In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank space.  These characters divide the square into contiguous regions. (Note that backslash characters are escaped, so a \ is represented as "\\".) Return the…

在由 1 x 1 方格组成的 N x N 网格 grid 中,每个 1 x 1 方块由 /.\ 或空格构成.这些字符会将方块划分为一些共边的区域. (请注意,反斜杠字符是转义的,因此 \ 用 "\\" 表示.). 返回区域的数目. 示例 1: 输入: [   " /",   "/ " ] 输出:2 解释:2x2 网格如下: 示例 2: 输入: [   " /",   " " ] 输出:1 解释:2x2 网格…

Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'. A region is captured by flipping all 'O's into 'X's in that surrounded region. For example, X X X X X O O X X X O X X O X X After running your function, the board should…

在LeetCode中的Surrounded Regions 包围区域这道题中,我们发现用DFS方法中的最后一个条件必须是j > 1,如下面的红色字体所示,如果写成j > 0的话无法通过OJ,一直百思不得其解其中的原因,直到有网友告诉我说他验证了最后一个大集合在本地机子上可以通过,那么我也来验证看看吧. class Solution { public: void solve(vector<vector<char> >& board) { ; i < boar…

原题地址:https://oj.leetcode.com/problems/surrounded-regions/ 题意: Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'. A region is captured by flipping all 'O's into 'X's in that surrounded region. For example, X X X X X O O X…

Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'. A region is captured by flipping all 'O's into 'X's in that surrounded region . For example, X X X X X O O X X X O X X O X X After running your function, the board should…