Ответ:
#include
using namespace std;
int main()
{
int YBorn , YNow ;
cout <<"what year where you born in?"<<endl;</p>
cin >>YBorn;
cout <<"what year is it now?"<<endl;</p>
cin >>YNow;
int YOld=YNow-YBorn;
cout<<"at the end of the year:"<<endl;</p>
cout << "you're " <<YOld << " years old"<<endl;</p>
int MOld = YOld*12;
cout<< "and "<<MOld<<" month old"<<endl;</p>
int DOld=YNow/4-YBorn/4+YOld*365;
cout<<"and "<<DOld<<" days old"<<endl;</p>
int HOld=DOld*24;
cout<<"and "<<HOld<<" hours old"<<endl;</p>
int MinOld=HOld*60;
cout<<"and "<<MinOld<<" minutes old"<<endl;</p>
int SOld=MinOld*60;
cout<<"and "<<SOld<<" seconds old"<<endl;</p>
cout<<"and "<<SOld<<"000 miliseconds old"<<endl;</p>
system("pause");
return 0;
}