Demonstrate merge() in list


#include <iostream>
#include <list>
using namespace std;
 
int main()
{
  list<int> listObject1, listObject2;
  int i;

  for(i = 0; i <10; i+=2) 
    listObject1.push_back(i);

  for(i =1; i <11; i+=2) 
    listObject2.push_back(i);

  cout << "Original size of listObject1: ";
  cout << listObject1.size() << endl;
  cout << "Original contents of listObject1:\n";
  list<int>::iterator p = listObject1.begin();
  while(p != listObject1.end()) 
    cout << *p++ << " ";
  cout << "\n\n";

  cout << "Original size of listObject2: ";
  cout << listObject2.size() << endl;
  cout << "Original contents of listObject2:\n";
  p = listObject2.begin();
  while(p != listObject2.end()) 
    cout << *p++ << " ";
  cout << "\n\n";

  // merge the two lists
  listObject1.merge(listObject2);

  cout << "Size of listObject1 after merge: ";
  cout << listObject1.size() << endl;
  cout << "Merged contents of listObject1:\n";
  p = listObject1.begin();
  while(p != listObject1.end()) 
    cout << *p++ << " ";
  cout << "\n\n";

  cout << "listObject2 is now empty, its size is ";
  cout << listObject2.size() << endl;

  return 0;
}

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Demonstrate merge() in list : List « Data Structure « C++

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