std::vector delete example

#include <iostream>
#include <vector> // we should include vector before using it.

using namespace std;

int main()
{
    std::vector<int> myVector;

    for ( int i = 0 ; i < 10 ; i++ )
    {
        myVector.push_back( i );
    }

   cout << "Size : " << myVector.size() << endl;  // print the size of the vector

    // if we want to delete the 1st element
    // erase() deletes the element after the given iterator, in this case 0th element.
    // please note begin() does NOT return the 0th element, rather the dummy element before the 0th element => 0 in this case.
    myVector.erase( myVector.begin() );

    cout << "Size after deletion: " << myVector.size() << endl << endl;

   // deteles 3 elements from begin() => 1, 2, 3 will be deleted.
   myVector.erase( myVector.begin(), myVector.begin() + 3 );

   // find and delete

   std::vector<int>::iterator ele6 = myVector.find(6);

   // if the given value is not there, iterator will reach the end
   if ( ele6 != myVector.end() )
   {
       myVector.erase(ele6);
   }

    std::vector<int>::iterator itr = myVector.begin();
   // iterate untin the iterator hits the end of the container
   for ( ; itr != myVector.end(); itr++ )
   {
       int val = *itr; // * dereferences the iterator and returns the actual value.
       cout << "Value : " << val << endl;
   }

   return 0;
}