Implement a class that can calculate the running average of a stream of input numbers up to a maximum of N numbers.
Developer Big Data Interview Questions
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Intersection of n sets without using a hash table.
Get numeric number out of a roman string, linear time Given: mapping I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000 Input/Output: II = 2, III = 3, IV = 4 VI, VII, VIII IX = 9 XL = 40, XLIX = 49
The initial question (writing a function to calculate a square root) ended up being the most difficult because it threw me off. I knew there was a good iterative method for doing so, but could not recall Newton's method in the moment, and I sadly let this nagging thought get in the way of my ability to work through the problem. My failure to perform well on that question set a negative tone for the rest of the interview, since each interviewer after the first can see notes from the previous interviewers.
Getting maximum and minimun number was not difficult but getting less than n comparison was tricky.
Implement a function to validate whether a given binary tree is a BST (i.e. write an isBST() function).
Given an integer set of numbers, print all the subsets. For some reason the interviewer asked to print the supersets, but what he means is subsets.
What would you do if minutes before your shift your computer wouldn't turn on?
print a pattern 012345678910987654321
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