They had scheduled two rounds first:

• Datastructure round
• Coding round

After completing the first two rounds, I did not receive any call from the recruiter with feedback. Later, after two days, I received an email stating that three more rounds had been scheduled:

• Design round
• Manager round
• Values interview

After five rounds of interviews, I received an email stating that they had decided to go with another candidate whom they thought was the best fit for them. Why schedule so many rounds when they had already decided to go with the other candidate? There was no proper feedback for the rejection.

Datastructure - Map related question