SQL questions on promotions, sales schema. what %age of products have both non fat and trans fat. find top 5 sales products having promotions what %age of sales happened on first and last day of the promotion Mysql was used and interviewer asked to if this can be done without subquery. Python:- [1,None,1,2,None} --> [1,1,1,2,2] Ensure you take care of case input[None] which means None object. find s in missisipi.
Developer Big Data Interview Questions
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Just one question: shift an array to the right by n positions such that the right most indexes are become the first ones and the first ones move ahead. like: 1 2 3 4 5 --> shift by 2 --> 4 5 1 2 3
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An optimal algorithm to check whether a hand of cards was a full house (in Poker) or not.
There are 20 floors in a building. If you're on an elevator and you're trying to get to the 20th floor, what is the probability that 4 people ahead of you click the 20th floor before you do? Assuming you click last.
How to detect a common superview.
Write a function to return the number of times a character appears in a string. The character can be the empty string.
How would you implement division without +, - or multiplication
This was not unexpected but a bit difficult. How would you represent the ordering of a deck of card if you only have 32bytes to work with. So, he explained that you have 52 objects, there are 52! possible ordering of them. how to encode one of those ordering within 32 bytes?
Milestone 2) Will ask to optimize by reducing the number of unfulfilled orders. The apis will be confusing and you will have two interviews during the coding session.
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