$1.$ Write a C$++$ program to change every letter in a given string with the letter following

it in the alphabet $($i$.$e$.$ a becomes b$,$ p becomes q$,$ z becomes a$).$

$2.$ Write a C$++$ program to find the largest word in a given string.

$3.$ Write a C$++$ program to count all the characters, blank spaces and words in a given

string.

$4.$ Write a C$++$ program to find a word in a given string that has the highest number of

repeated letters.

$5.$ Write a C$++$ program to remove all special characters from a given string.

$6.$ Write a program in C$++$ to compare the two given strings using a pointer.

$7.$ Write a program in C$++$ to check whether a given string is a palindrome or not using

the pointer method.