gaurav

#include <algorithm>
#include <iostream>
#include <vector>
#include <iterator>

using namespace std;

class Contest {
  std::vector <int> scores;
  Contest& operator=(Contest);

public:
  Contest (std::vector<int> v) : scores(v) 
  {
    std::cout << "Before scores";
    copy (v.begin (), v.end (), std::ostream_iterator<int> (std::cout, " "));
    std::cout << std::endl;
  }
  
  void print_after () 
  {
    std::cout << "After scores";
    copy (scores.begin (), scores.end (), std::ostream_iterator<int> (std::cout, " "));
    std::cout << std::endl;
  }
  
  void swap (Contest& other);
};

void print_vector (std::vector<int> v)
{
  copy (v.begin (), v.end (), std::ostream_iterator<int> (std::cout, " "));
}

void Contest::swap (Contest& other)
{
  std::vector <int>* firstPtr = (std::vector<int>*)this;
  std::vector <int>* secondPtr = (std::vector<int>*)&other;
  firstPtr->swap (*secondPtr);
}

int main () 
{
  std::vector<int> first (10, 1);
  std::vector<int> second (10, 2);
  
  Contest c1 (first);
  Contest c2 (second);
  
  c1.swap(c2);
  
  c1.print_after ();
  c2.print_after ();
}