Implement the generator function scale (s, k), which yields elements of the given iterable s, scaled by k. As an extra challenge, try writing this function using a yield from statement! def scale (s, k): """Yield elements of the iterable s scaled by a number k. >>> s = scale ( [1, 5, 2], 5) >>> type (s) >>> list (s) [5, 25, 10] >>> m = scale (naturals (), 2) in range (5)] >>> [next (m) for [2, 4, 6, 8, 10] "*** YOUR CODE HERE ***"
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- Write the value_equality method.Given the two expressions ? and ?, first compute the set of variables ? that appear in either ? or ?. Then, the idea consists in performing num_sample times the following test for equality: First, produce a variable assignment (a dictionary) mapping each variable in ? to a random value. Choose these random values from the gaussian distribution centered around 0 and with standard deviation 10 (for instance; any continuous distribution with infinite domain would work). You can obtain such numbers using random.gauss(0, 10). Then, compute the values of ? and ? with respect to that variable evaluation. If the values are closer than a specified tolerance tolerance, you consider ? and ? equal (for that variable valuation). Otherwise, you can stop and return that ? and ? are different. If you can repeat the process num_sample times, and ? and ? are considered equal every time, then you declare them equal. WRITE CODE IN PYTHONImplement the buildDistributionArray function to take an array of scores, built by parseScores, as an argument. A grade distribution array of length 5 is returned. Loop through the scores array and tally up the number of A, B, C, D, and F scores using the standard scoring system (90 and above = A, 80‐89 = B, 70‐79 = C, etc.). Store these totals in a distribution array where the number of As is the first number, number of Bs is the second number, etc. Ex: ["45","78","98","83","86","99","59"] → [2, 2, 1, 0, 2] buildDistributionArray returns [0, 0, 0, 0, 0] when the scoresArray argument is empty.Your tasks Implement the methods marked with ??? package percentiles: /** * Given a non-empty sequence of elements of type T, returns the smallest element e * in the sequence for which it holds that at least p percent of the elements in the sequence * are smaller or equal to e. * Note the special cases: * - when p == 0, the result should be the smallest element in the sequence * - when p == 100, the result should be the largest element in the sequence * If the sequence is empty, java.lang.IllegalArgumentException is thrown. * * For a sequence of length n, the method should make at most n*log(n) * [again, here log means base-2 logarithm] comparison operations between * the elements in the sequence. * Furthermore, assuming that comparison is a constant-time operation, * the whole method should run in O(n*log(n)) time. * Hint: you can assume that the "sorted" method of Seq performs at most n*log(n) comparisons for * sequences of…
- Write a RECURSIVE method called “sequence” that takes a single int parameter (n) and returns the int value of the nth element of the sequence S = 2, 4, 6, 12, 22, 40, 74, 136, 250, 460, … Where S is defined by the recursive formula: For n >= 0S(0) = 2; // Base case 1S(1) = 4; // Base case 2S(2) = 6; // Base case 3S(N) = 2 * ( S(N-1)/2 + S(N-2)/2 + S(N-3)/2)Write a method to return the reverse order for a list of space separated words. Example: "A sample sentence is required" would return "required is sentence sample A" I have this to start: class Solution: def reverse_words(self, input): # Your code goes here These are the tests: from solution import Solution import unittest class SolutionTests(unittest.TestCase): def test1(self): solution = Solution() self.assertEqual(solution.reverse_words("the quick brown fox"), "fox brown quick the") if __name__ == '__main__': unittest.main() Any help would be appreciated!Please implement in Java implement a keyed bag in which the items to be stored are strings (perhaps people’s names) and the keys are numbers (perhaps Social Security or other identification numbers). So, the in- sertion method has this specification: public void insert(String entry, int key);// Precondition: size( ) < CAPACITY, and the // bag does not yet contain any item// with the given key.// Postcondition: A new copy of entry has// been added to the bag, with the given key. When the programmer wants to remove or retrieve an item from a keyed bag, the key of the item must be specified rather than the item itself. The keyed bag should also have a boolean method that can be used to determine whether the bag has an item with a specified key. In a keyed bag, the pro- grammer using the class specifies a particular key when an item is inserted. Here’s an implementation idea: A keyed bag can have two private arrays, one that holds the string data and one that holds the corresponding…
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- Write functions (in Java) that draw Pyramid with “*” given height and stars variables. Make implementations for both iterative and recursive design. IterativePrintPyramid(int height) * * * * * * * * * * * * * * * * * * * * * * * * * RecursivePrintPyramid(int height, int stars) * * * ** * * * * * * * * * * * * * * * * * * * * 1-)void IterativePrintPyramid(int height){ } // end−of−IterativePrintPyramid -------------------------- 2-)void RecursivePrintPyramid(int height, int stars) { } // end−of−RecursivePrintPyramid# write your implementation heredef maxProfitBrute(changes): """ it returns the indices of (i,j) indicating the day to buy and sell respectively to have the maximum profit in a list of prices per day in <changes>. Inputs: - changes: the list holding the changes in prices; the value whose index is k represents the change between day <k> and day <k+1> <changes> has at least a single change [two days] Output: - i: the index of the change before which we buy - j: the index of the change after which we sell - maxProfit: the value of the maximum profit Example: changes = [1,2] - that means the price started with <x>; - day 1: it became <x+1> - day 2: it became <x+3> In that case: (i,j) = (0,1) as we should buy at the first day, and sell after the third day """ # return the values return (0,0,0)Complete the method below that prints all elements that are in both Set<String> s and Set<String> t. Each matching element should be followed by a space. What can I change to make it work? import java.util.Set;import java.util.Iterator; public class Sets{ public static void printMatches(Set<String> s, Set<String> t) { System.out.print("{ "); while(in.hasNext()){ String next = in.next(); { if((s.contains(next))&& (t.contains(next))){ System.out.print(next+" "); } } System.out.println("}"); }} import java.util.Set;import java.util.TreeSet;import java.util.Arrays; public class SetsTester{ public static void main(String[] args) { Set<String> set1 = new TreeSet<>(Arrays.asList("Bob", "Bill", "Sally")); Set<String> set2 = new TreeSet<>(Arrays.asList("Sam", "Bob", "Frank")); Sets.printMatches(set1, set2);…