Pergunta de entrevista da empresa Olyv

1st round coderpad I was given 2 programming questions and one mysql question. It was expected to write a neat clean code and mysql Queries and explain them. Second round (technical) small discussion about current projects. 1. https://www.geeksforgeeks.org/largest-subarray-with-equal-number-of-0s-and-1s/ 2. Java design patterns: wrote code for singlton and got a bit deep into it for making it threadsafe. Third round(technical round) 1. https://www.geeksforgeeks.org/convert-a-given-tree-to-sum-tree/ 2. Find first repeating element in array where all elements are between 0 to N-1 . Was supposed to do in single pass. Forth round(Design) Deep discussion about current projects and design Design google sheet and write all components with multiple people writing in same cell. Was able to meet all requirements. Fifth Round(Desing and Founder round) Discussion on the business logic of current projects. Design a restaurant: write all entities and all. Java questions: interface, abstract classes, diamond problem.