HackerRank Solution: HackerRank in a String in C++

Solution for HackerRank in a String, in C++. This coding challenge is under the Strings algorithms section. The HackerRank solution in this video has a linear time complexity as we compare all the characters in our strings. All HackerRank solutions on GitHub (please leave a star): https://github.com/IsaacAsante/HackerRank HackerRank in a String problem: https://www.hackerrank.com/challenges/hackerrank-in-a-string/problem