C program to show use of User Defined Functions.

This program demonstrate use of FindAverage() function.

#include<stdio.h>

void FindAverage(); // function prototype declaration.

int main()

{

     FindAverage(); //Call function.
     return 0;

}

void FindAverage()

{

     //function logic is written here..

     float num1, num2;

    

     printf("Enter number1: ");

     scanf("%f",&num1);

    

     printf("Enter number2: ");

     scanf("%f",&num2);

    

     printf("Average of two numbers: %f.", (num1+num2)/2);    

}

//Output

Enter number1: 10

Enter number2: 20

Average of two numbers: 15.000000.