#include <stdio.h>
#include <math.h>

int main()
{
    // Create two new integers to gather values
    int a = 0;
    int b = 0;
       int a+b =c;   //not allowed and not needed  
   //just float c will do fine

    // Get me a number from the user (a)
    printf("Enter a positive whole number.\n");
    scanf("%d", &a);
    printf ("You entered %d.\n", a);
    //to get  rid of the newline char still in the input buffer, you may use:
    getchar();     

    // Get another number (b)
    printf("Enter a positive whole number.\n");
    scanf("%d", &b);
    printf ("You entered %d.\n", b);

    // Print the average
    scanf("%f",c = (a+b)/2);  //this line is unnecessary
   //or c = (a+b)/2; 
   printf("Average is: %f.\n", c);
   printf ("Average is: %f.\n", (a+b/2);
   
    // Print another math function
   
    return 0;
}