program to find largest two number

#include<iostream.h>

#include<conio.h>

void main()

{

 int a[22],fbig=0,sbig=0,i,n;

 cout<<"\n enter size :";

 cin>>n;

 cout<<"\n enter element :";

 for(i=1;i<=n;i++)

 cin>>a[i];

 fbig=a[1];

 for(i=2;i<=n;i++)

 {

if(fbig<a[i])

{

fbig=a[i];

}

 }

 sbig=a[2];

 for(i=3;i<=n-1;i++)

 {

if(sbig<a[i])

{

sbig=a[i];

}

 }

 cout<<"\nfirst largest :"<<fbig;

 cout<<"\n second largest :"<<sbig;

 getch();

 clrscr();

}