Tips for Interview:

Ask questions. The interviewer will purposely give you a vague question in hopes that you will ask the necessary questions to clarify it for yourself.

Don’t panic. I know it can be nerve-wracking to go on an interview, especially if it’s your first. But, nerves are only going to make it worse. Collect yourself, and if you don’t know the answer, it’s okay. Think through it for a few minutes, and I’m sure anyone can come up with a solution. These questions are designed for you to be able to solve in the allocated time for an interview.

THINK OUT LOUD! I can’t stress this one enough. You are also being judged on your thought process. If your interviewer doesn’t know what you are thinking, they can’t throw you hints or correct you in any way. And believe me, they want to see you succeed. They are there to help you and guide you through the problem.

Other than that, study, study, study. Do as many algorithmically challenging problems as you can. "Cracking the Coding Interview" and Geeks for Geeks will be your best friends through the study process. Take advantage of these resources.

Given a string A consisting of n characters and a string B consisting of m characters, write a function that will return the number of times A must be repeated such that B is a substring of the repeated A. If B can never be a substring, return -1.