array vs vector

Array 

int A[10];

int n = 5;

for (int i=0; i<n; i++) A[i] = i+1;

cout << "array A contains:";

for (int i=0; i<n; i++)

    cout << ' ' << A[i];

cout << endl 

cout << "sum of A is " << sum(A, n) << endl;

Vector

vector<int> myvector;

for (int i=1; i<=5; i++) myvector.push_back(i); 

cout << "myvector contains:"; for (int i=0; i < myvector.size() ; i++)     cout << ' ' << myvector[i];

cout << endl;

cout << "myvector contains:";for (vector<int>::iterator it = myvector.begin() ; it != myvector.end(); ++it)     cout << ' ' << *it; cout << '\n';

cout << "sum of myvector is " << sum(myvector) << endl;

Note:

1. Both array and vector achieve the same functionality.

2. Two different ways of looping through vector.

3. Parameters pass to function sum are different.  We need to pass the size of array to sum.

4. Even though we use int as example, it should be obvious that int can easily be replaced with any other object.  The only thing it needs to have is the operator << overloading.

5. Related exercise is in Input N number