hello,
could someone explain me if I have to delete the first element of pvec and how many manner (syntax way) I have to do it?

thanks:
Qt Code: 
  1. vector<int*>* pvec = new vector<int*>();
  2. 	int ten=10, twenty=20, thirty=30;
  3. 	int* pten = new int(10);
  4. 	int* ptwenty = &twenty;
  5. 	int* pthirty = &thirty;
  6.  
  7. 	pvec->push_back(pten);
  8. 	pvec->push_back(ptwenty);
  9. 	pvec->push_back(pthirty);
  10. 	vector<int*>::iterator it;
  11.  
  12. 	for(it=pvec->begin(); it != pvec->end(); ++it) {
  13. 		cout << "*it " << *(*it) << "	";
  14. 	}
  15. 	delete (*pvec)[0]; //necessary or not? how many way to do it?
  16. 	delete pvec;
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