题解

#include<iostream>
using namespace std;
int n;
int b;
void scan ()
{
    cin >> n;
}
void check ()
{
    if (n > 0)
    {
        b = 1;
    }
    else if (n == 0)
    {
        b = 0;
    }
    else
    {
        b = -1;
    }
}
void print ()
{
    check();
    if (b == 1)
    {
        cout << "positive";
    }
    else if (b == 0)
    {
        cout << "zero";
    }
    else
    {
        cout << "negative";
    }
}
int main(){
    scan();
    print();
}