[해커랭크] Repeated Stringhttps://www.hackerrank.com/challenges/repeated-string/problem?isFullScreen=true Repeated String | HackerRankFind and print the number of letter a's in the first n letters of an infinitely large periodic string.www.hackerrank.com There is a string, , of lowercase English letters that is repeated infinitely many times. Given an integer, , find and print the number of letter..