Draw memory diagrams for point $1$ and $2$:

#include

void funct $($const char x $[8],$ char y$[],$ int n$)$;

int main$()$

$\{$

$//$ It is unusual to intialize a string with $\text{'}\backslash 0\text{'}$ in the middle of string,

$//$ but it's allowed and we did it delibrately for the educational pruposes.

const char$*$ sc $="$

$\backslash 0$map";

char sa$[5]=\{\text{'}\backslash 0\text{'}\}$;

while $(*$sc$)$ sc$++$;

sc $+=3$;

$//$ Point One

funct$($sc$,$ sa$,$ &sa$[5]-$ &sa$[0])$;

return $0$;

$\}$

void funct $($const char x$[8],$ char y$[],$ int n$)$

$\{$

while $($n $)\{$

y$[0]=$ x$[0]$;

n$--$;

x$--$;

y$++$;

$\}$

$//$ Point Two

$\}$