C programs are built from functions, variables, expressions, and statements. File input and output allow a program to read data from files and save processed results.
In this exercise, students practice file handling in C by reading text one character at a time and checking the result carefully.

C PROGRAMS ARE BUILT FROM FUNCTIONS, VARIABLES, EXPRESSIONS, AND STATEMENTS. FILE INPUT AND OUTPUT ALLOW A PROGRAM TO READ DATA FROM FILES AND SAVE PROCESSED RESULTS.
IN THIS EXERCISE, STUDENTS PRACTICE FILE HANDLING IN C BY READING TEXT ONE CHARACTER AT A TIME AND CHECKING THE RESULT CAREFULLY.


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