Function $3$: Stack$2$

Implement a class for stacks $($called Stack$2)$ using the std Queue class. In other words, the only operations that can be used in your Stack$2$ class are the ones defined in the Queue class.

void Stack$2$::push$($int x$)\{$

$//$ TODO: Student to implement

$\}$

void Stack$2$::pop$()\{$

$//$ TODO: Student to implement

$\}$

int Stack$2$::top$()\{$

$//$ TODO: Student to implement

return $0$; $//$ Placeholder return

$\}$

bool Stack$2$::empty$()\{$

$//$ TODO: Student to implement

return true; $//$ Placeholder return

$\}$