C Programming
What is function?

Function is the fundamental modular unit. A function is usually designed to perform a specific task.
Function is a block of statements that perform some specific task.
Function is a block of code that performs a specific task. It has a name and it is reusable.
All of these

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C Programming
Use of functions

Helps to avoid repeating a set of statements many times.
Helps to avoid repeated programming across programs.
Enhances the logical clarity of the program.
All of these
Makes the debugging task easier.

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