#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
if (!(n % 5 == 0) && (n % 3 == 0 && n <= 20) || (n % 5 == 0) && !(n % 3 == 0 && n <= 20))
cout << "YES";
else if (n == 15)
cout << "YES";
else
cout << "NO";
return 0;
}
共 3 条回复
👍 @lyhldy
看这个:https://st.cpolar.cn/article/4103
n=15不应该输出no吗