$//$ Problem $6$: decryptStrings $(5$ points$)$

$//$ HINT: This should be very similiar to the encryption function defined above in

$//$ encryptStrings$().$

$//$ Use pointer p to traverse the $2$D character array 'strings' and decrypt each

$//$ string in $2$ step as follows $-$

$//1)$ Shift the characters backward by the integer value of 'key'.

$//2)$ Reverse the strings. Hint: Use 'reverseStrings$()\text{'}$ for this step.

$//$ NOTE: DO NOT decrypt the null characters.

$//$ If you could not implement reverseStrings$(),$ skip using it in this

$//$ function.You will receive partial credit.

void decryptStrings$($char strings$[$NUM$\_$STRINGS$][$STRING$\_$LENGTH$],$ int key$)$

$\{$

$//$ Use pointer ptr to traverse the $2$D character array 'strings' and encrypt each

$//$ string in $2$ step as follows $-$

$//1)$ Reverse the strings. Hint: Use 'reverseStrings$()\text{'}$ for this step.

$//2)$ Shift the characters forward by the integer value of 'key'.

$//$ If the string is "hello" and key $=2,$ reversing will get you "olleh" and adding

$//$ key to it will result in $"$qnngj$".$

$//$ Once the value of 'key' gets larger, you will extend past alphabetical

$//$ characters and reach non $-$ alphabetical characters.Thats ok$.$

$//$ NOTE: DO NOT encrypt the null terminator character. Use the null terminator to

$//$ find the end string.

$//$ If you could not implement reverseStrings$(),$ skip using it in this

$//$ function.You will receive partial credit