Write a program to demonstrate function with no argument and return value in c

Function with no argument and return value in c

#include<stdio.h>

#include<conio.h>

void main()

{

int sum();

clrscr();

printf("Sum =%d",sum());

getch();

}

int sum()

{

int a=10,b=5;

return(a+b);

}

Output:

Sum =15