题解 | #实现四舍五入#

#include using namespace std;

int main() {

double d;
cin >> d;
int a = int(d);
if(d - a > 0.5){
    cout << ++a <<endl;// write your code here......
}else if (d - a < -0.5){
    cout << --a << endl;
}
else{
    cout << a << endl;
}

return 0;

}