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Engineering Intern Interview Questions

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If you have a refrigerator in an isolated room (no heat in or out) and left the door to the refrigerator open, what would happen to the temperature to the room? Would it go up, down or say the same?

11 Answers

Given an unsorted array, extract the max and min value using the least number of comparison.

4 Answers

Given a number n, give me a function that returns the nth fibonacci number. Running time, space complexity, iterative vs. recursive.

5 Answers

Can you think of an example of a scenario where you would want to use a tree with more degrees of branching than a binary tree?

4 Answers

string compression: aaabbbbcc ->a3b4c2

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Explain tail recursion.

3 Answers

Given an array of integers, all but one of which appears an even number of times, find the one integer which appears an odd number of times. Upon completion, asked to improve the algorithm in terms of both time and space, eventually asked to do it in O(n) time and constant space.

4 Answers

Given a word and a list of valid English words, return a list of all valid words that can be made by permuting the characters in the given word.

3 Answers

Write a program to reverse a string

3 Answers

Calculate the square root of a number.

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