1 #include <iostream> 2 #include <vector> 3 using namespace std; 4 5 int main(){ 6 int r,c; 7 cin >>r>>c; 8 vector<bool> row(r,false),col(c,false); 9 char ch; 10 for(int i = 0 ; i < r; i ++ ){ 11 for(int j = 0 ; j < c; j ++){ 12 cin >> ch; 13 if(ch == 'S') row[i] = col[j] = true; 14 } 15 } 16 int cnt = 0; 17 for(int i = 0 ; i < r; i ++){ 18 for(int j = 0 ; j < c; j ++ ){ 19 if(!row[i] || ! col[j] ) cnt++; 20 } 21 } 22 cout<<cnt<<endl; 23 return 0; 24 }