Program

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	// your code goes here
	int T, N, X;
	cin >> T;
	while (T--)
	{
	    cin >> N >> X;
	    cout << ( (N * X + 3) / 4 ) << '\n';
	    // a/b floors down so we add (b-1) to ceil up so when it floors down it floors down right
	}
	return 0;
}

Comments

your code goes here
a/b floors down so we add (b-1) to ceil up so when it floors down it floors down right