C User-defined functions.
A function is a block of code that performs a specific task. C allows you to define functions according to your need. These functions are known as user-defined functions.
Here is an example to add two integers. To perform this task, we have created an user-defined addNumbers().

  
Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.