Expedia Group interview questions

Initial interview over phone pretty standard. Was then interviewed by the Hiring Manager. Good detail about position and what they were looking for and needed. Questions were specific about experience and such.

Received a call from HR of Expedia, who has seen my profile in LinkedIn. He asked me couple of simple questions like what is Hashmap and a question about finding combination of numbers in an array that add up to a certain value. I got three rounds of telephonic interviews scheduled after a week or two. Then I was asked to fly to Expedia in Gurgaon. I had three rounds of interview. The questions are not tough, I could write code for all the questions, however, based on the feedback, the code wasn't optimized enough.