C PROGRAM TO ADD TWO NUMBERS USING FUNCTION

C PROGRAM TO ADD TWO NUMBERS / INTEGERS USING FUNCTION

#include<stdio.h>
#include<conio.h>
 int sum(int,int);   /*declaring prototype of function*/
 void main()
 {
  int a,b,c;
  printf("\n Enter the two numbers : ");
  scanf("%d  %d",&a,&b);    /* taking two numbers as input*/
  c = sum(a,b);      /* calling function,
                       *the value returned by the function is stored in c */
  printf("\n The sum of two numbers is : %d ",c);
  getch();
 }

 int sum ( int num1,int num2)
 {
  int result;  /* defining variable, its scope lies within function */
  result = num1 + num2 ;   /*adding two numbers*/
  return (result) ;     /* returning result */
 }

Sample Output :