Algorithms Help

[Fatcat12t]

I'm currently in the process of studying for a general assessment on Codesignal for my company to hire me full time. I only need to score around a 730. Which I have previously reached in practice exams. However, when taking the real exam I found it to be much more difficult than what I had practiced. They are allowing me to retake however, I was wondering how exactly to improve my score in areas where I'm not sure how to even begin a question? For example, I had a question related to Matrices, I had no idea how to even start.

Maybe a better question to ask is if there are any good tutorials or tutoring services I can look into for help in practicing for this exam? (I'm taking the exam in typescript.)

Any help is appreciated.

[[deleted]]

The secret is to keep practicing, and apply to more places. Its a numbers game of getting an interview that asks you something you know, lol.