Bluebeam C# Developer interview questions

Hacker Rank Test is pretty straightforward. It's a bunch of multiple choice questions, and a coding task. I did not spend the whole 2 hours like some of the other applicant suggested. I guess it really depends on how many years since you've graduated from a computer science program. The take home test is where I failed. They ask you to solve a maze (an image) with a start and goal for both orthogonal and non-orthogonal maze. They say they judge the code based on SOLID principles, performance and originality. They expect you to write this in C# and with visual studio. And if you fail their standards, they don't provide you with any information.