int mround(double d)
{
return (int)floor(d + 0.5);
}
int main()
{
cout << mround(3.8) << endl;
cout << mround(-3.8) << endl;;
cout << mround(3.3) << endl;;
cout << mround(-3.3) << endl;;
cout << mround(-3.5) << endl;;
cout << mround(3.5) << endl;;
return 0;
}