题解 | #实现四舍五入#

#include using namespace std;

int main() {

double d;
int c;
cin >> d;
c = d;
if (d < 0) {
    if (d - c < -0.5) {
        cout<< c - 1<< endl;
    }
    else {
        cout<< c<< endl;
    }
}
else {
    if (d - c > 0.5) {
        cout << c + 1 << endl;
    }
    else {
        cout<< c <<endl;
    }
}
return 0;

}