Problem
1. Write a program segment that reads grades for a class (any size) and finds the class average. Grades range from 0 to 100 inclusive.
2. Write a program segment that reads in 100 integers and then counts and prints out the number of positive integers and the number of negative integers. If a value is 0, it should not be counted.
3. Write a program segment that adds up the even integers from 16 to 26 inclusive.