Uber Software Engineer interview questions

Test - Interview . Test was of 2 programming questions. On arrays and Binary trees. Time was 1 hour. The program must be completed with all test cases. My only 2/10 test cases were passed .

Probably one of the hardest online assessment I have ever taken. There were four questions for the assessment test and totally stumped on the third question. I didn't even get to look at the last question. That is all I'm gonna say. Didn't seem like the question was reasonable for an hour.