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What is the output of the following code?
int swap(int *a,int *b)
{
*a=*a+*b;*b=*a-*b;*a=*a-*b;
}
main()
{
int x=10,y=20;
swap(&x,&y);
printf("x= %d y = %d\n",x,y);
}

A.	x = 10 y = 10	B.	x = 20 y = 20
C.	x = 02 y = 01	D.	x = 20 y = 10

Answer and Explanation

Answer:x = 20 y = 10

Explanation:
This is one way of swapping two values. Simple checking will help understand this.

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