Upcoming Information 4 All

#include<bits/stdc++.h>
using namespace std;

int main()
{
    long long t,x,y,a,b;
    cin>>t;
    while(t--)
    {
        cin>>x>>y>>a>>b;
        if(x*y == a+b)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    return 0;
}

n=int(input())
for i in range(n):
    x,y,a,b=map(int,input().split())
    if x*y == a+b:
        print('Yes')
    else:
        print('No')

https://www.hackerearth.com/practice/python/getting-started/numbers/practice-problems/algorithm/binary-sequence-dbaf9d61/