Essential C++

Exercise 1.6

Write a program to read in a sequence of integers from standard input. Place the values, in turn, in a built-in array and a vector. Iterate over the containers to sum the values. Display the sum and average of the entered values to standard output.

The built-in array and the vector class differ in primarily the same ways as the C-style character string (which is implemented as an array of char elements) and the string class: (1) The built-in array must be of a fixed size, whereas the vector can grow dynamically as elements are inserted, and (2) the built-in array does not know its size. The fixed-size nature of the built-in array means that we must be concerned with potentially overflowing its boundary. Unlike the C-style string, ...