Google Software Engineer(Internship) interview questions

Contacted 2 weeks after applying for Fall internship. Received online coding challenge (2 questions). Then was scheduled for a 2 hours coding interview by phone and Google Doc (one interview per hour). Was emailed later that week to schedule a 3rd interview. Received rejection one week after the last interview.

It has 2 rounds in total. Each one lasts for about 45 minutes. They asked some basic algorithms and data structures questions, such as sorting, complexity, tree, binary search tree, and hashmap. Then start coding.