Started off with a poorly designed Codility coding test. Very long problem descriptions. The questions don't seem to be designed to test your coding skills at all, rather to show how their level of sophistication to their clients (your potential future employer). It would still be alright if their python interpreter was working properly. So, be prepared for your correct codes return different results on their python interpreter and redesign your solution COMPLETELY hoping that it will spit out the same results you get on Jupyter notebook or VS Code. Long story short, the element of the human interaction would make up for the codility's faulty software. Would be a much fairer process if it was a live coding where you could explain your codes.