What is the smallest unsigned value we must pass to the following function to trigger a stack overflow $($assuming a stack size of $64$ bytes and that we are compiling and running as the only task on an x$86-64$ system$)?$ Give your answer in decimal.

unsigned long rec$($unsigned long x$)\{$

if$(!$x$)$ return $17$;

return rec$($x ;

$\}$What is the smallest unsigned value we must pass to the following function to trigger

a stack overflow $($assuming a stack size of $64$ bytes and that we are compiling and

running as the only task on an x$86-64$ system$)?$ Give your answer in decimal.

unsigned long rec$($unsigned long $x)\{$

if$(!$x$)$ return $17$;

return rec;

$\}$

Blank $1$

Blank $1$