题解 | #实现四舍五入#

#include <iostream>
using namespace std;

int main() {
    double d;
    cin>>d;
    if(d > 0)
    {
        d +=0.5;
        int num = d/1;
        cout<<num;
    }
    else
    {
        d -=0.5;
        int num = d/1;
        cout<<num;

    }
    
}
// 64 位输出请用 printf("%lld")