Pyro Networks interview questions

Good process of interview. Minimum and meaningful rounds and very good interactions with individuals. The interview with the CEO was very insightful and focus was on getting business and seeing how well the company can contribute the customers success

Given n doors and n persons. The doors are numbered 1 to n and persons are given id’s numbered 1 to n. Each door can have only 2 status open and closed. Initially all the doors have status closed. Find the final status of all the doors if a person changes the current status of all the doors, i.e. if status open then change to status closed and vice versa, for which he is authorized. A person with id ‘i’ is authorized to change the status of door numbered ‘j’ if ‘j’ is a multiple of ‘i’.