C++ 判断数字正负 - 完整代码示例

#include <iostream>
using namespace std;

int main() {
    int N;
    cin >> N;
    
    if (N > 0) {
        cout << 'positive' << endl;
    } else if (N == 0) {
        cout << 'zero' << endl;
    } else {
        cout << 'negative' << endl;
    }
    
    return 0;
}