题解

#include<iostream>
using namespace std;
int is_leap(int n){
    if((n % 100 != 0 && n % 4 == 0) || n % 400 == 0){
        return 1;
    }else{
        return 0; 
    }
}
int main() {
	int n;
	cin >> n;
	if(is_leap(n)) cout << "Y" << endl;
	else cout << "N" << endl;
    return 0;
}