Swap 2 integers without using a temp variable.
Data Science Intern Interview Questions
10,850 data science intern interview questions shared by candidates
Tell me about a data related project you've worked on
You are given a Binary Search Tree of ints with duplicate entries. You are guaranteed that if an element has a duplicate entry, it is in the right subtree of that element. Write a function to count the total number of duplicates. (note, if a tree contains the same element two times, the count of duplicates is 1, not 2)
SQL questions: 1) What is the default order of ORDER BY? 2) What is the result of 1+null? 3) How to select from two tables? 4) What command id used together with GROUP BY?
All questions were from scripts, which ALL of the faculty committee read from.
Interview 1: 1) Algorithms Question -- How would you solve this array problem? Can you do it in O(n) time? Then write the code 2) Do you have any questions? Interview 2: Talk about your experiences--particularly in data science or machine learning
Specific task, very long. They would use your tasks, not pay for it and not give you any feedback (proving they did not care for your performance, all they wanted was to get your work for free)
What do you think will be the biggest challenge of the job?
How would u manage a person of more experience than you who is working under you?
Do you know how to use excel?
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