Magnetic

#include <iostream> using namespace std; int main() { //freopen("input.txt", "r", stdin); for(int tc = 1; tc <= 10; tc++) { int n, a[100][100]; int cnt = 0; cin >> n; for(int i = 0; i < n; i++) for(int j = 0; j < n; j++) cin >> a[i][j]; //--------------------------- //duyet tung cot for(int j = 0; j < n; j++) { bool check = false; for(int i = 0; i < n; i++) { if(a[i][j] == 1) check = true; if(check == true && a[i][j] == 2) { cnt++; check = false; } } } cout << "#" << tc << " " << cnt << endl; } return 0; }