Google Software Engineer Internship interview questions

Got referred in September. Received a coding challenge with 1 medium and 1 easy question. Had 3 telephonic interviews with 1 question each- 2 Leet Coce Hards and 1 medium. They grilled on time complexity and accuracy of solution.

First the resume was shortlisted via online application and then within few weeks they Sent an online coding test where there were some basic list slicing questions a few questions testing the space complexity and a question about binary trees.