Maximal Square Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area. For example, given the following matrix: 1 0 1 0 0 1 0 1 1 1 1 1 0 0 1 0 Return 4. Credits:Special thanks to @Freezen for…

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 动态规划 日期 题目地址: https://leetcode.com/problems/maximal-square/description/ 题目描述 Given a 2D binary matrix filled with 0's and 1's, find the largest square containing only 1's and r…

Maximal Square Given a 2D binary matrix filled with 0's and 1's, find the largest square containing only 1's and return its area. Example: Input: 1 0 1 0 0 1 0 1 1 1 1 1 1 1 1 1 0 0 1 0 Output: 4 解 动态规划,设\(dp[i][j]\)表示下标为(i, j)的左上角区域的最大正方形面积,当\(\math…

[LeetCode]593. Valid Square 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/valid-square/description/ 题目描述: Given the coordinates of four points in 2D space, return whether the four points could…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/maximal-rectangle/description/ 题目描述: Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. Exa…

Maximal Rectangle Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 如果用DP来做,判断(begin1,end1)~(begin2,end2)范围是否全1,会超时. 对于矩阵matrix,逐行构建height数组,调用Largest Rectangle in Histogram即可. 对matr…

Given a rows x cols binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. Example 1: Input: matrix = [["1","0","1","0","0"],["1","0"…

题目: Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. For example, given the following matrix: 1 0 1 0 0 1 0 1 1 1 0 0 1 0 Return 6   题解: 这个题是在 Largest Rectangle in Histogram上的延伸,二维矩…

package y2019.Algorithm.dynamicprogramming.easy; /** * @ProjectName: cutter-point * @Package: y2019.Algorithm.dynamicprogramming.easy * @ClassName: Rob * @Author: xiaof * @Description: 198. House Robber * You are a professional robber planning to rob…

问题描述: 题目链接:221 Maximal Square 问题找解决的是给出一个M*N的矩阵, 只有'1', '0',两种元素: 需要你从中找出 由'1'组成的最大正方形.恩, 就是这样. 我们看到, 这道题目的标签还是DP, 那么问题的关键就是要找到一个符合判断是否为正方形的递推式. 老套路, 先看基本型, 对于一个2*2的正方形,对于右下角的元素(1,1)而言, 他的上(0,1), 左(1,0), 左上(0,0)三个元素应该都是'1', 如此才能够组成一个合规的正方形: 那么如果是一个3*…