Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. 这道题可以巧妙地转化为[84. Largest ...

Input: matrix = [["1","0","1","0","0"], ["1","0","1","1","1"], ["1","1","1","1","1"], ["1","0","0","1","0"]] Output: 6 The largest rectangle of 1s has an area of 6 ...