HACKERRANK : SPECIAL STRING AGAIN [ INTERVIEW PROBLEM ]
A string is said to be a special string if either of two conditions is met:
All of the characters are the same, e.g. aaa.
All characters except the middle one are the same, e.g. aadaa.
A string is said to be a special string if either of two conditions is met:
All of the characters are the same, e.g. aaa.
All characters except the middle one are the same, e.g. aadaa.