#include<bits/stdc++.h> using namespace std; int tmp[1002][1002]; char mat[1002][1002]; int main() { int n, m; cin >> n >> m; for (int i = 1; i <= n; i++) { for (int j = 1; j <= m; j++) { cin >> mat[i][j]; if (mat[i][j] == '') tmp[i][j] = 1; } } for (int i = 1; i <= ...
