In this exercise, you are to modify the Classify Numbers programming example in this cha...

In this exercise, you are to modify the Classify Numbers programming example in this chapter. As written, the program inputs the data from the standard input device (keyboard) and outputs the results on the standard output device (screen). The program can process only 20 numbers. Rewrite the program to incorporate the following requirements:

a. Data to the program is input from a file of an unspecified length; that is, the program does not know in advance how many numbers are in the file.

b. Save the output of the program in a file.