A program in C to SWAP the contents of 3 variables without using the temporary variables.

A program in C to SWAP the contents of 3 variables without using  the temporary variables.

 /* Swapping 3 numbers without using extra variable */
 #include< stdio.h >
 #include< conio.h >
 void Swap(int *a,int *b,int *c)
 {
    *a = *a + *b + *c;
    *b = *a - (*b + *c);
    *c = *a - (*b + *c);
    *a = *a - (*b + *c);
 }
 int main()
 {
    int x=1,y=2,z=3;
    clrscr();
    printf("BEFORE SWAPPING : %d %d %d\n",x,y,z);
    Swap(&x,&y,&z);
    printf("AFTER SWAPPING : %d %d %d",x,y,z);
   return(0);
 }/*end*/



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