Assuming that a text fi le contains characters in the ASCII range 0 to 127 and contains at least one newline character, create a function that uses the fi lename as argument to return 1 if the fi le...

Assuming that a text fi le contains characters in the ASCII range 0 to 127 and contains at least

one newline character, create a function that uses the fi lename as argument to return 1 if the

fi le contains only text, or -1 otherwise.

Write a program that compares two fi les whose names are provided as user input. The program

must quit with a suitable message that indicates the location in the fi le where the fi rst mismatch

was encountered.