#include <iostream>
#include <vector>
using namespace std;

// this does not use an iterator (yet)

int main()
{
  vector<string> courses;
  courses.push_back( "CSCI 1200" );
  courses.push_back( "CSCI 4210" );
  courses.push_back( "CSCI 1100" );
  courses.push_back( "CSCI 4430" );
  courses.push_back( "CSCI 4440" );

  for ( unsigned int i = 0 ; i < courses.size() ; i++ ) {
    cout << courses[i];
    if ( courses[i] == "CSCI 4210" ) {
      cout << " (hey, that's Operating Systems!)";
    }
    cout << '\n';
  }

  // find a course and cancel it
  string course_to_delete = "CSCI 4210";
  bool found = false;
  unsigned int loc = 0;
  while ( !found && loc < courses.size() )
  {
    found = ( courses[loc] == course_to_delete );
    if ( !found ) { loc++; }
  }

  if ( found ) {
    courses.erase( courses.begin() + loc );
    cout << "Course deleted: " << course_to_delete << '\n';
  }

  for ( unsigned int i = 0 ; i < courses.size() ; i++ ) {
    cout << courses[i] << '\n';
  }

  return 0;
}