#include

#include

#include

#define MAX$\_$LENGTH $200$

bool isPalindrome$($char $*$str$)\{$

char $*$start $=$ str;

char $*$end $=$ str;

$//$ Move 'end' to the last character

while $(*$end $!=\text{'}\backslash 0\text{'})\{$

end$++$;

$\}$

end$--$;

while $($start $<$ end$)\{$

$//$ Skip non$-$alphanumeric characters

while $(!$isalnum$(*$start$)$ && start $<$ end$)\{$

start$++$;

$\}$

while $(!$isalnum$(*$end$)$ && start $<$ end$)\{$

end$--$;

$\}$

$//$ Compare characters case$-$insensitively

if $($tolower$(*$start$)!=$ tolower$(*$end$))\{$

return false; $//$ Not a palindrome

$\}$

start$++$;

end$--$;

$\}$

return true; $//$ Palindrome

$\}$

int main$()\{$

char input$[$MAX$\_$LENGTH$]$;

printf$("$Enter a word$/$phrase: $")$;

if $($fgets$($input$,$ MAX$\_$LENGTH, stdin$)==$ NULL$)\{$

printf$("$Error reading input

$")$;

return $1$;

$\}$

if $($isPalindrome$($input$))\{$

printf$("$The word$/$phrase is a palindrome.

$")$;

$\}$ else $\{$

printf$("$The word$/$phrase is not a palindrome.

$")$;

$\}$

return $0$;

$\}$

Edit this c program so it no longer uses