Write a C program according to the description of Programming Projects Q$2($b$)$ of

Chapter $12,$ on pages $275-276$ of the textbook.

Requirements:

$-$ The maximum length of the user message is $100$ characters.

$-$ You can only use the $[]$ operator to declare the array. The $[]$ operator should not be used anywhere else in your program.

$-$ Ignore all characters that aren$$t letters.

$-$ When asked $$Do you want to continue $($N to stop$)?,$ the program stops if the

user$$s input contains $$n$$ or $$N$.$

Example Interaction $($user input is underlined; your program must follow this format

precisely without the underline$)$:

$ gcc $-$Wall a$4\_$palindrome.c

$ $./$a$.$out

Enter a message:

Hello?

Not a palindrome

Do you want to continue $($N to stop$)?$ n

$

$ $./$a$.$out

Enter a message: d

Palindrome

Do you want to continue $($N to stop$)?$

z

Enter a message: m

Palindrome

Do you want to continue $($N to stop$)?$

aab

Enter a message: zz

Palindrome

Do you want to continue $($N to stop$)?$ y

Enter a message: xy

Not a palindrome

Do you want to continue $($N to stop$)?$

xy

Enter a message: aba

Palindrome

Do you want to continue $($N to stop$)?$

N

$

$ $./$a$.$out

Enter a message: level

Palindrome

Do you want to continue $($N to stop$)?$ a

Enter a message: ab$!=$ba

Palindrome

Do you want to continue $($N to stop$)?$ n

$

$ $./$a$.$out

Enter a message: abc

Not a palindrome

Do you want to continue $($N to stop$)?$

y

Enter a message: abcba

Palindrome

Do you want to continue $($N to stop$)?$

a

Enter a message: abceba

Not a palindrome

Do you want to continue $($N to stop$)?$

b

Enter a message: abba

Palindrome

Do you want to continue $($N to stop$)?$

and

$

$ $./$a$.$out

Enter a message: He lived as a devil, eh$?$

Palindrome

Do you want to continue $($N to stop$)?$

a

Enter a message: Madam, I am Adam.

Not a palindrome

Do you want to continue $($N to stop$)?$

an

$

$ $./$a$.$out

Enter a message: Go ahead, make my day.

Not a palindrome

Do you want to continue $($N to stop$)?$ y

Enter a message: Racecar!

Palindrome

Do you want to continue $($N to stop$)?$ y

Enter a message: A man, a plan, a canal, Panama!

Palindrome

Do you want to continue $($N to stop$)?$

N

$