Consider a C$++$ program, in which the prototype of a particular

function is defined as void swap$\_$funct $($int $**$x$,$ int $**$y$)$; $.$ This

function swaps the values of ${?}^{****x}$ and ${?}^{****}y$ and has the following

swapping procedure:

int$*$ temp $=*x$;

${?}^{**x}={?}^{**y\text{;}}$

${?}^{**y}=$ temp;

Say in the main$()$ function, we initialize the values of $x$ and $y$ as

int $x=5$; and int $y=10$; and then we perform the following

chain of operations:

int$*$ a $=$ &x;

int$*$ b $=$ &y;

int$**$ m $=$ &a;

int$**$ n $=$ &b;

Determine all variables that are holding the value $10$ after

is called.