A recruiter contacted me on LinkedIn and informed me about current opportunities in Vancouver, Canada. They asked if I was interested in sending my resume, which I did. Following that, I was scheduled for an interview.

In the interview, there were two questions:

• I solved the first with O(log n) complexity, and my code passed all test cases.
• For the second, I needed to figure out what the functions were doing and determine which function would take less time using some time function.

Even though I answered both questions with optimal time and space complexity, the next day I received an email stating that 'They do not see me as a good fit right now.'

I can't understand what they want. The company arranged a technical interview, and after solving both questions in the most optimal way, they said I am not a good fit. This is strange!

I believe they are just wasting time and playing with students/candidates. I am really disappointed with Arista Networks.

Given a sorted array, find the missing element?

Two functions, both doing the same thing: finding the number of ones in a binary number. Need to find which will take less time.