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

依葫芦画瓢，单词别打错就行

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a;
    cin>>a;
    if(a>0){
        cout<<"positive ";
    }
    if(a==0){
        cout<<"zero";
    }
    if(a<0){
        cout<<"negative";
    }
    return 0;
}

#include<bits/stdc++.h> using namespace std; int main() { int x; cin>>x; if(x > 0) { cout<<"positive"; } else { if(x == 0) { cout<<"zero"; } else { cout<<"negative"; } } return 0; }

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

#include<bits/stdc++.h> using namespace std; int main(){ long long a; cin>>a; if (a>0) {cout<<"positive";} if (a==0) {cout<<"zero";} if (a<0) {cout<<"negative";} return 0; }