text: // Passing vector object to a constructor.
  #include <iostream>
  #include <vector>
  using namespace std;
  
  
  
  
  
  
  int main(){
  
      int a = 5; cout<< a << endl;
  
      int b = 2;
  
      b = a; cout<< b << endl;
  
      cout<< a << endl;
  
      cout<<"this is pointer"<< endl;
  
  
  
  
  
  
  }