class Solution { public int maximalRectangle(char[][] matrix) { //dp[i][j][k],k=0是横向长,k=1是纵向宽 //dp[i][j][0]=dp[i][j-1][0]+1; //dp[i][j][1]=dp[i-1][j][1]+1; int dimX=matrix.length; if(dimX==0){ return 0; } int dimY=matrix[0].leng...