C program to show use of user defined functions

Basic c programs using functions

1. /*C program to show use of User Defined Functions.
2. This program demonstrate use of FindAverage() function.
3. */
4. #include<stdio.h>
5. 
   
6. void FindAverage(); // function prototype declaration.
7. 
   
8. void main()
9. {
10.      FindAverage(); //Call function.
11. }
12. 
    
13. void FindAverage()
14. {
15.      //function logic is written here..
16.      float num1, num2;
17.     
18.      printf("Enter number1: ");
19.      scanf("%f",&num1);
20.     
21.      printf("Enter number2: ");
22.      scanf("%f",&num2);
23.     
24.      printf("Average of two numbers: %f.", (num1+num2)/2);    
25. }
26. //Output
27. Enter number1: 10
28. Enter number2: 20
29. Average of two numbers: 15.000000. 

choose next program from this list