c++ for_each() and object functions

Question

I have an assignment that is the following:

For a given integer array, find the sum of its elements and print out the final result, but to get the sum, you need to e

Answer 1

The array has 10 elements so 10 is not a valid array index.

vector v(array[0], array[10]);
                              ^^

What you want is:

vector v(array, array + sizeof(array) / sizeof(int) );