Calculate Average
Learn how to insert elements into an array, and sum up all of an array's elements to calculate the average value.
Problem
Write a program that asks the user to enter a set of student scores (non-negative integers) and then calculates the average. The program should end when the user enters -1.
Enter scores: (enter -1 to finish):87941005674677588-1Average score : 80
Calculate average score
Purpose
Insert elements into an array ...