Discovery, Inc. Software Development Engineer interview questions

Online Assessment: 1 Easy Problem solving question, which has to be done in 30 min, explanatory video for the same had also to be recorded. 1st Technical Round: This was focused on DS/Algo, Problem solving. Some Java based and Design Implementation based questions were also asked. Code has to be written for some of the questions being asked. 2nd Technical Round: This round was focused on System Design. A real world scenario was given, which has to be solved with appropriate System Design concepts. 3rd Technical Round: Questions on past experiences were asked, why and how you have used the tech in your previous projects, some System design arguments on past projects. A problem solving question (DS/Algo) was also asked, for which code has to be written. Java based questions, questions on OS concepts, threading etc. were also asked

What was the thought process to solve the question.