题目: 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. 题目链接:https://leetcode.com/problems/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 在给定的二维字符数组,找出最大全为1的矩形包含的1的个数: 注意这里相当于求面积而已,只要求出边长就很好办了.边长用dp很好求…
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…
Level Medium 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 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 思路分析: 动态规划思想,要找到最大的正方形,我们以dp[ i ] [ j ]表示,以第i行…
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: Return 4. 思路: DP,到达当前(非0)结点的最长边长square[i][j] = min(square[i-1][j-1], min(square[i-1][j], square…
Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. 求出0,1矩阵中的最大矩形区域: DP问题,可以使用数组记下当前行位置之前的所有1的个数,然后用一个三重循环来找以(i,j)为右下角的矩形的最大的面积,比较得到最大值.这样做复杂度还是比较高的.但是胜在简单,代码如下所示: class Solution { pub…
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. [题目分析] 这个问题是要在一个0-1矩阵中找到由1构成的最大最大的矩阵的面积. [思路] 如何下手呢?…
