#include<iostream.h> 
class Sample 
{ 
  int n; 
public: 
  Sample(){} 
  Sample(int i){n=i;} 
  Sample &operator =(Sample); 
  void disp(){cout<<"n="<<n<<endl;} 
}; 
Sample &Sample::operator=(Sample s) 
{ 
  Sample::n=s.n; 
  return *this; 
} 
void main() 
{ 
  Sample s1(10),s2; 
  s2=s1; 
  s2.disp(); 
}