Research scientist Interview Questions

I have answered the second question saying that we can keep storing the 1's and 0's in a vector and the moment we hit -1, we will reverse iterate the vector and can get the integer number out of the bit stream and can see whether %3 is zero or not. he told me to optimize the program in terms of space and time complexity. I told we can compress the bit stream in such a way so that when we have continuous 1's and 0's can be replaced by only single 1's and 0's. He was not satisfied with the answer.

Keep dividing while storing stream e.g - 10101-1 will be like 1 -> 1 0 -> 10 1 -> 101(5) divided and remain 10 0 -> 100 (4) divided and remain 1 1 -> 11(3) divided and remain 0

For Question1 : Traverse BST in inorder store into node array. Sort integer array given. Now iterate both array simultaneously & update node value with the value at same index in integer array.

i Explained all the projects.

Hi, what was the CTC you were offered? and how much experience you had before this in data science?

I could answer the question after thinking about some time.

Step1: Fill 5L water container Step2: Remove 3L of water from 5L water and put it in 3L container. Now you are left with 2L water in 5L container. Step3: Now empty 3L water container and put remaining 2L water from 5L water container to it. Now you have only 2L water in 3L container. Step4: Refill 5L water container. And fill the remaining 1L of 3L water container. Now you are left with exactly 4L water in 5L water container. Cheers! ;)

Again a surprize, but I let them decide my salary.

I have not huge expectations for my salary. I'll accept the salary as much as suited for me

Take a difference list. a = [15,15,60,15,15,..] Drop ones that are not 15. b = [15,15,15,15] Take the length and multiply by 15. 15*len(b)/3600 to get hours.

Can you post a link to the question and solution?

mean

median

First I don't want to work with this kind of half knowledge people. First time in my life, I rejected a company.

There's a lot of elements to typically cover in these questions, clarifications, scoping, making sure you're answering the actual question the interviewer is looking for you to answer, etc. Could be worth doing a mock interview with one of the Prepfully Novartis Data Scientist experts... they've worked in the role so they clearly know how to get through the interview. prepfully.com/practice-interviews