I was shown three programs. Each solving the same problem and was asked to analyze them and suggest which one is the best and why.
Desarrollador Ruby Junior Interview Questions
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Suppose you have an array of positive and negative integers. Given X as input, find two numbers that add up to X.
1. Tell me about your experience when you make decision without the approval of your mentor. 2. Park lot design.
How to check if a number is even or odd without using % or / ?
What are different types of interrupts?
Write a function that takes an integer and prints out the digits separated by commas. Example, pass in 345 print out 3,4,5
Find the numbers occur odd times (e.g. 1,3,5,7,...) in the given array. e.g. { 2, 2, 1, 1, 1, 4, 4 } You should print 1.
How would you implement a sparse array (key could be any integer, but only a few would be used) with limited memory.
Extract the N largest floating point numbers from a large file of floating point numbers.
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.
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