解题

#include <bits/stdc++.h>
using namespace std;
string hanshu(int n){
    if(n%100 == 0){
        if(n%400 == 0){
            return "YES";
        }else{
            return "NO";
        }
    }else if(n%4 == 0){
        return "YES";
    }else{
        return "NO";
    }
}
int main(){
    int n;cin>>n;
    cout<<hanshu(n);
}