PDF code:

$*/$

#include

using namespace std;

$/**$ Displays the reverse of a non blank string s$.$

@ pre s should not be blank.

@ post The reverse of the string s is dispalyed.

$*/$

void displayBackwards$($string$)$;

int main$()\{$

string s;

cout$<<"$ Enter a string $-"$;

cin$>>$s;

cout$<<$"Reverse of string $"<<$ s $<<"="$;

displayBackwards$($s$)$;

return $0$;

$\}$

$/**$ Displays the reverse of a non blank string s$.$

@ pre s should not be blank.

@ post The reverse of the string s is dispalyed.

$*/$

void displayBackwards$($string s$)\{$

int length $=$ s$.$size$()$;

if$($length$==0)//$base case

cout$<$