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I attended GroupOn OA and first interview round in November 2021. I had 2.4 yoe at the time of interview and I interviewed for SDE-2 position

Round 1: Given a list of file objects(name,tag,memory) [obj("file1", "tag1", 100), obj("file2", "tag2", 200), obj("file3", "tag1", "300")], return the top k tags. Follow up questions on time complexity, How would you optimize if the method is being called multiple times etc

My solution passed all the test cases that interviewer pasted in coderpad. I felt I did very well. But they rejected me the next day.