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Find Mean Find the mean (average) of a list of numbers in an array. Information To find the mean (average) of a set of numbers add all of the numbers together and divide by the number of values in the list. For an example list of 1, 3, 5, 7 Add all of the numbers 1+3+5+7 = 16 Divide by the number of values in the list. In this example there are 4 numbers in the list. 16/4 = 4 The mean (or averag..

Wolves have been reintroduced to Great Britain. You are a sheep farmer, and are now plagued by wolves which pretend to be sheep. Fortunately, you are good at spotting them. Warn the sheep in front of the wolf that it is about to be eaten. Remember that you are standing at the front of the queue which is at the end of the array: [sheep, sheep, sheep, sheep, sheep, wolf, sheep, sheep] (YOU ARE HER..

This kata is from check py.checkio.org You are given an array with positive numbers and a non-negative number N. You should find the N-th power of the element in the array with the index N. If N is outside of the array, then return -1. Don't forget that the first element has the index 0. Let's look at a few examples: array = [1, 2, 3, 4] and N = 2, then the result is 3^2 == 9; array = [1, 2, 3] ..

Write a function that always returns 5 Sounds easy right? Just bear in mind that you can't use any of the following characters: 0123456789*+-/ Good luck :) Solution: def unusual_five(): return int([i for i in str(ord("A"))].pop()) Other Solution: def unusual_five(): return len("five!") def unusual_five(): return ord("")

You are given an array(list) strarr of strings and an integer k. Your task is to return the first longest string consisting of k consecutive strings taken in the array. Examples: strarr = ["tree", "foling", "trashy", "blue", "abcdef", "uvwxyz"], k = 2 Concatenate the consecutive strings of strarr by 2, we get: treefoling (length 10) concatenation of strarr[0] and strarr[1] folingtrashy (" 12) co..

The maximum sum subarray problem consists in finding the maximum sum of a contiguous subsequence in an array or list of integers: max_sequence([-2, 1, -3, 4, -1, 2, 1, -5, 4]) # should be 6: [4, -1, 2, 1] Easy case is when the list is made up of only positive numbers and the maximum sum is the sum of the whole array. If the list is made up of only negative numbers, return 0 instead. Empty list i..

In this Kata, you will be given a string that may have mixed uppercase and lowercase letters and your task is to convert that string to either lowercase only or uppercase only based on: make as few changes as possible. if the string contains equal number of uppercase and lowercase letters, convert the string to lowercase. For example: solve("coDe") = "code". Lowercase characters > uppercase. Cha..

In a factory a printer prints labels for boxes. For one kind of boxes the printer has to use colors which, for the sake of simplicity, are named with letters from a to m. The colors used by the printer are recorded in a control string. For example a "good" control string would be aaabbbbhaijjjm meaning that the printer used three times color a, four times color b, one time color h then one time ..

An anagram is the result of rearranging the letters of a word to produce a new word (see wikipedia). Note: anagrams are case insensitive Complete the function to return true if the two arguments given are anagrams of each other; return false otherwise. Examples "foefet" is an anagram of "toffee" "Buckethead" is an anagram of "DeathCubeK" Solution: def is_anagram(test, original): if len(test) < l..

Some people just have a first name; some people have first and last names and some people have first, middle and last names. You task is to initialize the middle names (if there is any). Examples 'Jack Ryan' => 'Jack Ryan' 'Lois Mary Lane' => 'Lois M. Lane' 'Dimitri' => 'Dimitri' 'Alice Betty Catherine Davis' => 'Alice B. C. Davis' Solution: 1. If there are 3 or more elements of name, only the f..