这样也能错......大佬帮我调一下！

# include <iostream>
using namespace std;
int main(){
    long long n;
    if (n > 0) cout << "positive";
    else if (n == 0) cout << "zero";
    else cout << "negative";
    return 0;
}

https://www.luogu.com.cn/record/114643271