题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin >> n;
    if (n > 0)  //大于0为正数
        cout << "positive";
    else if (n == 0)  //等于0
        cout << "zero";
    else
        cout << "negative";  //小于0为负数
	return 0;
}