#include <stdio.h> #include<conio.h> long addTwoNumbers(long *, long *); main() { long fno, sno, *ptr, *qtr, sum; printf(" enter the first number : "); scanf("%ld", &fno); printf(" enter the second number : "); scanf("%ld", &sno); sum = addTwoNumbers(&fno, &sno); printf(" The sum of %ld and %ld is %ld\n\n", fno, sno, sum); } long addTwoNumbers(long *n1, long *n2) { long sum; sum = *n1 + *n2; return sum; }