There is a string, s, of lowercase English letters that is repeated infinitely many times. Given an integer, n, find and print the number of letter a's in the first n letters of the infinite string.
Example
s = 'abcac'
n = 10
The substring we consider is 'abcacabcac', the first 10 characters of the infinite string. There are 4 occurrences of a in the substring.
Lets solve Hackerrank Repeated String JavaScript
Code at https://mirimad.com/hackerrank-solutions/counting-valleys-hackerrank-solution-python/
Github: https://github.com/mirimadahmed/hackerrank-solutions
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