## 题目描述 给定一个仅包含 0 和 1 、大小为 rows x cols 的二维二进制矩阵，找出只包含 1 的最大矩形，并返回其面积。 ## 示例 **示例 1:** **输入:** matrix = [["1","0","1","0","0"],["1","0","1","1","1"],["1","1","1","1","1"],["1","0","0","1","0"]] **输出:** 6 **解释:** 最大矩形如上图所示。 **示例 2:** **输入:** matrix = [["0"]] **输出:** 0 **示例 3:** **输入:** matrix = [["1"]] **输出:** 1 ## 约束条件 rows == matrix.length cols == matrix[0].length 1 <= rows, cols <= 200 matrix[i][j] 为 '0' 或 '1' ## LeetCode 链接 https://leetcode.cn/problems/maximal-rectangle/