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;
}

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