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Returning a reference variable.
CODING:
#include<iostream.h>
#include<conio.h>
int &max(int &a,int &b,int &c)
{
 if(a>b && a>c)
  return a;
 else if(b>c)
  return b;
 else
  return c;
}
void main()
{
int a,b,c;
clrscr();
cout<<"Enter No.";
cin>>a;
cout<<"Enter No.";
cin>>b;
cout<<"Enter No.";
cin>>c;
cout<<"Maximum Number:"<<max(a,b,c);
getch();
}

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