How Old are you C++ Written Program

This Program Is written in C++.
You can run it on any Compiler.

#include<iostream>
using namespace std;
int main ()
{
cout<<"Programmed by ProgramingPoint.blogspot.com \n "<<endl;
cout<<"Hint: write dates like this year/month/day yyyy/mm/dd \n \n";
long long int


f1,x2,x12,a2,b2,k2,i2,j2,n2,C2,n,Y1,Y2,M1,M2,D1,D2,C,r,a,b,c,x1,N,i,j,k,x,y,m,d

,y1,y2,m1,m2,d1,d2; char c1,c5,c3,c4;


x2=0;x12=0;a2=0;b2=0;k2=0;i2=0;j2=0;n2=0;C2=0;n=0;C=0;N=0;c=0;y=0;m=0;d=0;
cout<<"Enter your birthday date : ";
cin>>y1>>c1>>m1>>c5>>d1;
cout<<endl;
cout<<"Enter date of today : ";
cin>>y2>>c3>>m2>>c4>>d2;
    cout<<endl;
     r=d2;Y1=y1;Y2=y2;M1=m1;M2=m2;D1=d1;D2=d2;
     if ((y1*10000+m1*100+d1)>(y2*10000+m2*100+d2))
     {
      cout<<"Error"<<endl;
}
else
{
    if (m2>m1)
    y=y2-y1;
    if (m2<m1)
    y=y2-y1-1;
    if (m2==m1)
{
    if (d2>=d1)
    y=y2-y1;
    else
    y=y2-y1-1;
    }
    if (m2>m1)
    {
    if (d2>=d1)
    m=m2-m1;
    else
    m=m2-m1-1;
}
if (m2==m1)
{
if (d2>=d1)
    m=m2-m1;
    else
    m=11;
    }
    if (m2<m1)
{
if (d2>=d1)
    m=12+m2-m1;
    else
    m=11+m2-m1;
    }
    if (d2>=d1)
    d=d2-d1;
    else
    {
    if (m2-1==1) d=31+d2-d1;
    if (m2-1==2)
    { if (y1%4==0 && y1%400!=100 && y1%400!=200 && y1%400!=300)
    d=29+d2-d1;
    else
    d=28+d2-d1;
}
    if (m2-1==3) d=31+d2-d1;
    if (m2-1==4) d=30+d2-d1;
    if (m2-1==5) d=31+d2-d1;
    if (m2-1==6) d=30+d2-d1;
    if (m2-1==7) d=31+d2-d1;
    if (m2-1==8) d=31+d2-d1;
    if (m2-1==9) d=30+d2-d1;
    if (m2-1==10) d=31+d2-d1;
    if (m2-1==11) d=30+d2-d1;
    if (m2-1==12) d=31+d2-d1;
    }
    if (20000101<(Y1*10000+M1*100+D1))
{
 for (a=1;a<M1;a++)
   {
    if (a==1) x1=31;
    if (a==2)
    {
    if (Y1%4==0 && Y1%400!=100 && Y1%400!=200 && Y1%400!=300) x1=29;
    else x1=28;
    }
    if (a==3) x1=31;
    if (a==4) x1=30;
    if (a==5) x1=31;
    if (a==6) x1=30;
    if (a==7) x1=31;
    if (a==8) x1=31;
    if (a==9) x1=30;
    if (a==10) x1=31;
    if (a==11) x1=30;
    if (a==12) x1=31;
    for (b=1;b<=x1;b++)
    C++;
    n=1;
   }
   if (2000<Y1)
    {
   for (i=2000;i<Y1;i++)
   {
   for (j=1;j<=12;j++)
   {
    if (j==1) x=31;
    if (j==2)
    {
    if (i%4==0 && i%400!=100 && i%400!=200 && i%400!=300) x=29;
    else x=28;
    }
    if (j==3) x=31;
    if (j==4) x=30;
    if (j==5) x=31;
    if (j==6) x=30;
    if (j==7) x=31;
    if (j==8) x=31;
    if (j==9) x=30;
    if (j==10) x=31;
    if (j==11) x=30;
    if (j==12) x=31;
    for (k=1;k<=x;k++)
    n++;
   }
}
C--;
}
C++;
cout<<"You borned on ";
if ((n+C+D1-1)%7==1) cout<<"saturday";
if ((n+C+D1-1)%7==2) cout<<"sunday";
if ((n+C+D1-1)%7==3) cout<<"monday";
if ((n+C+D1-1)%7==4) cout<<"tuesday";
if ((n+C+D1-1)%7==5) cout<<"wednesday";
if ((n+C+D1-1)%7==6) cout<<"thursday";
if ((n+C+D1-1)%7==0) cout<<"friday";
}
if (20000101==(Y1*10000+M1*100+D1)) cout<<"You borned on saturday";
if (20000101>(Y1*10000+M1*100+D1))
{
   for (i=Y1;i<2000;i++)
   {
   for (j=M1;j<=12;j++)
   {
    if (j==1) x=31;
    if (j==2)
    {
    if (i%4==0 && i%400!=100 && i%400!=200 && i%400!=300) x=29;
    else x=28;
    }
    if (j==3) x=31;
    if (j==4) x=30;
    if (j==5) x=31;
    if (j==6) x=30;
    if (j==7) x=31;
    if (j==8) x=31;
    if (j==9) x=30;
    if (j==10) x=31;
    if (j==11) x=30;
    if (j==12) x=31;
    for (k=D1;k<=x;k++)
    n++;
    D1=1;
   }
   M1=1;
}
cout<<"You borned on ";
if ((n-1)%7==6) cout<<"saturday";
if ((n-1)%7==5) cout<<"sunday";
if ((n-1)%7==4) cout<<"monday";
if ((n-1)%7==3) cout<<"tuesday";
if ((n-1)%7==2) cout<<"wednesday";
if ((n-1)%7==1) cout<<"thursday";
if ((n-1)%7==0) cout<<"friday";
}
  if (20000101<(Y2*10000+M2*100+D2))
{
 for (a2=1;a2<M2;a2++)
   {
    if (a2==1) x12=31;
    if (a2==2)
    {
    if (Y2%4==0 && Y2%400!=100 && Y2%400!=200 && Y2%400!=300) x12=29;
    else x12=28;
    }
    if (a2==3) x12=31;
    if (a2==4) x12=30;
    if (a2==5) x12=31;
    if (a2==6) x12=30;
    if (a2==7) x12=31;
    if (a2==8) x12=31;
    if (a2==9) x12=30;
    if (a2==10) x12=31;
    if (a2==11) x12=30;
    if (a2==12) x12=31;
    for (b2=1;b2<=x12;b2++)
    C2++;
    n2=1;
   }
   if (2000<Y2)
    {
   for (i2=2000;i2<Y2;i2++)
   {
   for (j2=1;j2<=12;j2++)
   {
    if (j2==1) x2=31;
    if (j2==2)
    {
    if (i2%4==0 && i2%400!=100 && i2%400!=200 && i2%400!=300) x2=29;
    else x2=28;
    }
    if (j2==3) x2=31;
    if (j2==4) x2=30;
    if (j2==5) x2=31;
    if (j2==6) x2=30;
    if (j2==7) x2=31;
    if (j2==8) x2=31;
    if (j2==9) x2=30;
    if (j2==10) x2=31;
    if (j2==11) x2=30;
    if (j2==12) x2=31;
    for (k2=1;k2<=x2;k2++)
    n2++;
   }
}
C2--;
}
C2++;
cout<<endl<<"Today is ";
if ((n2+C2+D2-1)%7==1) cout<<"saturday";
if ((n2+C2+D2-1)%7==2) cout<<"sunday";
if ((n2+C2+D2-1)%7==3) cout<<"monday";
if ((n2+C2+D2-1)%7==4) cout<<"tuesday";
if ((n2+C2+D2-1)%7==5) cout<<"wednesday";
if ((n2+C2+D2-1)%7==6) cout<<"thursday";
if ((n2+C2+D2-1)%7==0) cout<<"friday";
}
if (20000101==(Y2*10000+M2*100+D2)) cout<<endl<<"Today is saturday";
if (20000101>(Y2*10000+M2*100+D2))
{
   for (i2=Y2;i2<2000;i2++)
   {
   for (j2=M2;j2<=12;j2++)
   {
    if (j2==1) x2=31;
    if (j2==2)
    {
    if (i2%4==0 && i2%400!=100 && i2%400!=200 && i2%400!=300) x2=29;
    else x2=28;
    }
    if (j2==3) x2=31;
    if (j2==4) x2=30;
    if (j2==5) x2=31;
    if (j2==6) x2=30;
    if (j2==7) x2=31;
    if (j2==8) x2=31;
    if (j2==9) x2=30;
    if (j2==10) x2=31;
    if (j2==11) x2=30;
    if (j2==12) x2=31;
    for (k2=D2;k2<=x2;k2++)
    n2++;
    D2=1;
   }
   M2=1;
}
cout<<endl<<"Today is ";
if ((n2-1)%7==6) cout<<"saturday";
if ((n2-1)%7==5) cout<<"sunday";
if ((n2-1)%7==4) cout<<"monday";
if ((n2-1)%7==3) cout<<"tuesday";
if ((n2-1)%7==2) cout<<"wednesday";
if ((n2-1)%7==1) cout<<"thursday";
if ((n2-1)%7==0) cout<<"friday";
}
    cout<<endl<<endl<<"You lived "<<y<<" years & "<<m<<" months & "<<d<<"days"<<endl;
    cout<<"Number of years   = "<<y<<endl;
    cout<<"Number of months  = "<<y*12+m<<endl;
    if (y1<y2)
    {
 for (a=1;a<m2;a++)
   {
    if (a==1) x1=31;
    if (a==2)
    {
    if (y2%4==0 && y2%400!=100 && y2%400!=200 && y2%400!=300) x1=29;
    else x1=28;
    }
    if (a==3) x1=31;
    if (a==4) x1=30;
    if (a==5) x1=31;
    if (a==6) x1=30;
    if (a==7) x1=31;
    if (a==8) x1=31;
    if (a==9) x1=30;
    if (a==10) x1=31;
    if (a==11) x1=30;
    if (a==12) x1=31;
    for (b=1;b<=x1;b++)
    c++;
   }
   for (i=y1;i<y2;i++)
   {
   for (j=m1;j<=12;j++)
   {
    if (j==1) x=31;
    if (j==2)
    {
    if (i%4==0 && i%400!=100 && i%400!=200 && i%400!=300) x=29;
    else x=28;
    }
    if (j==3) x=31;
    if (j==4) x=30;
    if (j==5) x=31;
    if (j==6) x=30;
    if (j==7) x=31;
    if (j==8) x=31;
    if (j==9) x=30;
    if (j==10) x=31;
    if (j==11) x=30;
    if (j==12) x=31;
    for (k=d1;k<=x;k++)
    N++;
    d1=1;
   }
   m1=1;
   }
    cout<<"Number of weeks   = "<<(r+c+N-1)/7<<endl;
   cout<<"Number of days    = "<<r+c+N-1<<endl;
   cout<<"Number of hours   = "<<(r+c+N-1)*24<<endl;
   cout<<"Number of minutes = "<<(r+c+N-1)*24*60<<endl;
   cout<<"Number of seconds = "<<(r+c+N-1)*24*3600<<endl;
    }
    else
   {
   if (m1<m2)
   {
   for (j=m1;j<m2;j++)
   {
    if (j==1) x=31;
    if (j==2)
    {
    if (y2%4==0 && y2%400!=100 && y2%400!=200 && y2%400!=300) x=29;
    else x=28;
    }
    if (j==3) x=31;
    if (j==4) x=30;
    if (j==5) x=31;
    if (j==6) x=30;
    if (j==7) x=31;
    if (j==8) x=31;
    if (j==9) x=30;
    if (j==10) x=31;
    if (j==11) x=30;
    if (j==12) x=31;
    for (k=d1;k<=x;k++)
    N++;
    d1=1;
   }
   cout<<"Number of weeks   = "<<(r+N-1)/7<<endl;
    cout<<"Number of days    = "<<r+N-1<<endl;
   cout<<"Number of hours   = "<<(r+N-1)*24<<endl;
   cout<<"Number of minutes = "<<(r+N-1)*24*60<<endl;
   cout<<"Number of seconds = "<<(r+N-1)*24*3600<<endl;
  }
else
{
   cout<<"Number of weeks   = "<< d/7<<endl;
   cout<<"Number of days    = "<<d<<endl;
   cout<<"Number of hours   = "<<d*24<<endl;
   cout<<"Number of minutes = "<<d*24*60<<endl;
   cout<<"Number of seconds = "<<d*24*3600<<endl;
}
}
}
cin>>f1;
}

Happy Reading!