Suppose the input file "scores.txt" contains the following integer values:

92

0

88

100

60

42

0

67

Write a C++ program that first inputs the filename from the keyboard. Let's assume the user enters "scores.txt".

The program opens the file, inputs the values, counts, computes the average, and outputs the following:

# students: 8

# non-zero: 6

# with 100: 1

Average: 74.8333

The 0's are not included in the average. In general, assume the input file contains 1 or more valid integers in the range 0..100, inclusive.