Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. Example: Input: [ [1,3,1], [1,5…
题面 Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. 给定二维数组,从(0, 0)开始,只能向右和向下走,找到最小…
题目描述 给出一个只包含0和1的二维矩阵,找出最大的全部元素都是1的长方形区域,返回该区域的面积. Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area. class Solution {public: int maximalRectangle(vector<vector<char> > &…