Thread: Who can improve this excercise?

Basically I have done this program just to try calling some function.
Who can give me some idea, or give me a excercise? (Like do this..., I will try to do it)

Code:

void numf(int, int);
int takenum ();
void banner(void);


#include <stdlib.h>
#include <conio.h>
#include <stdio.h>


int p=1;
void main()
{
int number1, number2;


banner();


number1=takenum();
number2=takenum();


numf(number1, number2);


}
void banner()
{


    printf("This program add two number.\n\n\n");


}


int takenum()
{
    
    int in1;
    
    printf("Enter number %d:",p);
    scanf("%d",&in1);


    p=p+1;
    return(in1);
}




void numf(int num1, int num2)
{
    int sum;
    sum=num1+num2;


    printf("The sum of this two number are %d",sum);
    getch();
}