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You are given an odd-length array of integers, in which all of them are the same, except for one single number. Complete the method which accepts such an array, and returns that single different number. The input array will always be valid! (odd-length >= 3) Examples [1, 1, 2] ==> 2 [17, 17, 3, 17, 17, 17, 17] ==> 3 Solution: def stray(arr): import collections return [k for k, v in collections.C..

Description: Write a function that takes an array of strings as an argument and returns a sorted array containing the same strings, ordered from shortest to longest. For example, if this array were passed as an argument: ["Telescopes", "Glasses", "Eyes", "Monocles"] Your function would return the following array: ["Eyes", "Glasses", "Monocles", "Telescopes"] All of the strings in the array passe..

Description: Given an array of integers, find the one that appears an odd number of times. There will always be only one integer that appears an odd number of times. Examples [7] should return 7, because it occurs 1 time (which is odd). [0] should return 0, because it occurs 1 time (which is odd). [1,1,2] should return 2, because it occurs 1 time (which is odd). [0,1,0,1,0] should return 0, beca..