Google Senior Software Engineer interview questions

It was very good the questions were very easy and it was a very smooth process . Very good recruiters compared to other companies. I had a great time interviewing for the google.

I was referred to Google by a HR I know, I had innterviewed on 4th March 2020. The interviewer was polite and nice. The question I was asked was given a set of prime numbers return all possible composite numbers from the given set (given numbers included). For example : Input: [2, 3, 5] Output : [1, 2, 3, 5, 6, 10, 15, 30] I gave a solution that took 2^n time complexity. My approach was initialize a set like this {1}, then take each element of the array and multiply it with the elements in the result set i.e. Start : {1} i = 0 : {1, 2} i = 1 : {1, 2, 3, 6} and so on. Two days later I was informed that I was not selected.