func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     int a;     for (int i = 0; i < t; i++) {       int n, m;       cin >> n >> m;       if (n == 1 && m == 1) {         cout << 1 << endl;       } else if ((n == 1 && m != 1) || (m == 1 && n != 1)) {         if ((n * m) % 2 == 0) {           a = (n * m) / 2;           cout << a << endl;         } else {           a = (n * m) / 2;           cout << a + 1 << endl;         }       }       if ((n * m) % 2 == 1 && n != 1 && m != 1) {         a = (n * m) / 2;         a++;         cout << a << endl;       }       if ((n * m) % 2 == 0 && n != 1 && m != 1) {         a = (n * m) / 2;         cout << a << endl;       }     }     return 0;   }   