Functions!

     Functions are very useful in programming. I've already used programmer-defined functions in lab 3 and I'm pretty sure I'll have to use them in the next labs that come.

The Function Declaration:
ex:

int result (int x, int y);
//Adds x and y and outputs the result.

The Function Call:
ex:
   
sum = result ( x , y );

The Function Definition:
ex:

int result (int x, int y)
{
int sum;

sum = x + y;
return (sum);
}