/* swap - program to swap values of two integers without using a temporary variable */

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

void main()
{
    int  x, y ;
    clrscr() ;
    printf("Enter two integers: ") ;
    scanf("%d %d", &x, &y) ;
    printf("x=%d y=%d \n", x, y) ;
    x=x+y ;
    y=x-y ;
    x=x-y ;
    printf("After swapping: \n") ;
    printf("x=%d y=%d", x, y) ;
    getch() ;
}

/*
Output:

Enter two integers: 5  8
x=5 y=8
After swapping:
x=8 y=5

*/