题解 | 四季

#include <iostream>
using namespace std;

int main() {
    long long a;
    cin>>a;
    int b=a%100;
    if(b==3||b==4||b==5){
        cout<<"spring";
    }else if(b==6||b==7||b==8){
        cout<<"summer";
    }else if(b==9||b==10|b==11){
        cout<<"autumn";
    }else{
        cout<<"winter";
    }
    return 0;
}
// 64 位输出请用 printf("%lld")