Program in C++ to Calculate Age

Program in C++ to Calculate Age  

#include<iostream>
#include<conio.h>
 using namespace std;
  int main()
   {
      int y,m,d,td,pd,tm,pm,ty,py;
      cout<<"Enter Previous  Day, Month and Year:-";
      cin>>pd>>pm>>py;
      cout<<"Enter today Day , Month and Year:-";
      cin>>td>>tm>>ty;
      int mm[12]={31,py%4==0&&py%100!=0||py%400==0?29:28,31,30,31,30,31,31,30,31,30,31};
      if(pd>td)   //For Dates
       {
           td=td+mm[tm-2];
           d=td-pd;
           tm=tm-1;
       }
      else
         d=td-pd;
      if(pm>tm)   //For Months
        {
          tm=tm+12;
          ty=ty-1;
          m=tm-pm;
        }
      else
         m=tm-pm;
         y=ty-py;    //For Years

     cout<<"\nAge is "<<y<<" Years "<<m<<" Months and "<<d<<" Days.";
     return 0;
  }

Output:-