All Notes on BCA

#include<stdio.h>
#include<conio.h>
void main()
{
int n1,n2;
clrscr();
printf("Enter two number");
scanf("%d%d",&n1,&n2);
   n1=n1+n2;
   n2=n1-n2;
   n1=n1-n2;
printf("n1= %d,n2= %d",n1,n2);
getch();
}

INPUT
Enter First  Number : 22
Enter Second Number : 11
OUTPUT
After Swapping :
number 1st = 11
number 2nd = 22