Computer Science A - removal - 9/15/99

Directions:
    Write a function that removes all occurences of a certain integer
    from its vector parameter. Do NOT use any additional vectors. Be
    certain to update the cevtor components and the vector length.

Declarations:
    apvector<int> Numbers;
    int item;              //integer to be removed

Call:
    place = location2(Values, N);

Before Call:                              After Call:
    4   -3    5    4    4    item = 4         -3    5    (length = 2)
    7    8    8    2    2    item = 8     7    2    2    (length = 3)

Heading:
    void removal(apvector<int>& Numbers, int item)

//precondition: Numbers is full, item is defined
//postcondition: a vector containing the values in Numbers excluding
//               item.Numbers.length() is updated.

Continued 9/16/99