Solution of 'Equal Coins' (Codechef November Challenge 2021 Div 3)

Hola guys!!

Here's my solution to the problem- 'Equal Coins' from Codechef November Challenge 2021 Div3. If you have any suggestions do comment. Happy Coding!!

This question mainly tests your maths  skills.

Question Link: https://www.codechef.com/NOV21C/problems/EQUALCOIN

#include <bits/stdc++.h>

#define int long long

#define pb push_back

#define fi first

#define se second

#define pii pair<int,int>

using namespace std;

int32_t main()

{

    int t;

    cin>>t;

    while(t--){

        int x,y;

        cin>>x>>y;

        int sum=x+y*2;

        if(sum!=0){

            if(x!=0&&sum%2==0) cout<<"YES"<<'\n'; // like 4 3

            else if(x==0&&y%2==0) cout<<"YES"<<'\n'; // like 0 4

            else cout<<"NO"<<'\n'; //like 0 3

        }

        else cout<<"NO"<<'\n'; // like 1 4

    }

    return 0;

}