题解 | 统计数据正负个数

#include <iostream>
using namespace std;

int main() {
    int n, x = 0 ,y = 0;
    while(cin >>n ){
        if(n >= 0){
            x++;
        }
        if(n < 0){
            y++;
        }
    }
    cout << "positive:" <<x << endl;
    cout << "negative:" <<y << endl; 
}
// 64 位输出请用 printf("%lld")