hackerrank2 [HackerRank][String Manipulation] Special String Again 문제 링크 www.hackerrank.com/challenges/special-palindrome-again/problem Special String Again | HackerRank Find Special sub-strings in a string. www.hackerrank.com 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 special substring is any substring of a string whic.. 2021. 4. 23. [HackerRank][String Manipulation] Sherlock and the Valid String 문제 링크 www.hackerrank.com/challenges/sherlock-and-valid-string Sherlock and the Valid String | HackerRank Remove some characters from the string such that the new string's characters have the same frequency. www.hackerrank.com Sherlock considers a string to be valid if all characters of the string appear the same number of times. It is also valid if he can remove just character at index in the st.. 2021. 4. 23. 이전 1 다음