vectors

[roger911]

So I'm learning about vectors and multi-dimensional vectors, and I have a question pertaining to the use of dynamically allocated vectors.

Before I was working with something along the lines of

  int arraysize = 10;
  int* arrayname = new int[arraysize];

This would basically create a int arrayname[10];, but on the heap instead of on the stack. Since using this method is on the heap, I would have to de-allocate it and its pointer when I was done using it by using

delete [] arrayname;
arraysize = nullptr;

My question : Now that I'm using vectors, How is the data being stored, and do I need to de-allocate everything when finished using them (if so how?)?

[a k n]

If you mean std::vector<int> then you don't have to.