Question $11$

Consider the following segment of a program intended to swap two values:

$```$

void swap$($int&$,$ int$)$;

int main$()$

$\{$

int x$=0,$ y$=1$;

swap$($x$,$ y$)$;

return $0$;

$\}$

void swap$($int &a$,$ int b$)$

$\{$

int temp;

temp $=$ a;

a $=$ b;

b $=$ temp;

$\}$

$```$

The values stored in the variables x and y respectively after execution of the code are:

$10$

$00$

$21$

$11$

$12$

$01$