write a function db to double as an integer list. One function only. db([2,3,5]) > [4,6,10]

Python Complete the get_2_dimensional_list() function that takes two parameters: 1. An integer num_rows. 2. An integer num_columns. The function should return a 2D list with num_rows rows and num_columns columns. Each element is set to a random value between 1 and 99 included. If both parameters num_rows and num_columns are set 0, the function returns an empty list. You MUST use a for...in.range loop to create the 2D list. You do not need to import the random module as it has already been done for you. Some examples of the function being called are shown below. For example: Test random.seed (15) num_rows - 2 num columns 5 matrix = get_2_dimensional_list(num_rows, num_columns) print(matrix) random.seed (132) num_rows=2 num_columns 2 matrix = get_2_dimensional_list(num_rows, num_columns) print(matrix) Result [[27, 2, 67, 95, 5], [21, 31, 3, 8, 88]] [[53, 20], [53, 8]]

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Write a function sum_alt that takes a list of numbers zand calculates their alternating sum, defined as n-1 Σ(-1)+1 zk. k=0 Here Zo, Z1, Zn-1 denote the individual elements of the list.

Write a function that concatenates all the strings in a list. The concatenation of all the strings in an empty list is the empty string "". please use Ocaml for the code and make sure the code is complete

Given the following function header: def longest_chain(lst: list[int]) -> int: II II II Given a list of integers, return the length of the longest chain of 1's that start from the beginning. Precondition: 1st is non-empty II II II which one of the cases below is the least useful to check? Select the best answer. o longest_chain([0]) o longest_chain([1, 1, O]) o longest_chain([1, 1, 0, 1]) o longest_chain([1, 0, 1, 1]) o longest_chain(['1', '1', 'O', '1', '1', '1'])

Write a function little_sum (number_list, limit) that returns the sum of only the numbers in number_list that are less than or equal to the given limit. In this question you must use a for loop and you are not allowed to use the sum function. For example: Test Result numbers = [1, 2, 3, 4, 5, 6] total = little_sum(numbers, 3) print(total) values = [6, 3, 4, 1, 5, 2] 10 total = little_sum(values, 4) print(total)

have been given a singly linked list of integers. Write a function that returns the index/position of integer data denoted by 'N' (if it exists). Return -1 otherwise. Note :Assume that the Indexing for the singly linked list always starts from 0.Input format :The first line contains an Integer 'T' which denotes the number of test cases. The first line of each test case or query contains the elements of the singly linked list separated by a single space. The second line contains the integer value 'N'. It denotes the data to be searched in the given singly linked list. Remember/Consider :While specifying the list elements for input, -1 indicates the end of the singly linked list and hence -1 would never be a list element. Output format :For each test case, return the index/position of 'N' in the singly linked list. Return -1, otherwise. Output for every test case will be printed in a separate line. Note:You do not need to print anything; it has already been taken care of. Just implement…

In sml 1. Use  pattern style to write a function posLL to count number of positive values ina int list list. One function only.  posLL [nil, [~2,3], [5], [~7,11]] > 3 2.Use pattern style to write a function sumTL to compute sum of a triple int list. One function only.  sumTL([(1,2,3), (0,1,2)]) > 9. 3 .Use pattern style to write a function db to double an integer list. One function only.  db([2,3,5]), > [4,6,10]

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