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- How are ArrayLists and arrays different? (give three significant distinctions)class Solution(object): def longestCommonPrefix(self, strs): result ="" for i in strs[0]: for j in strs[1]: for k in strs[2]: if i == j and i == k: result+=i if len(result) >0: return result else: return result IndexError: list index out of range for j in strs[1]: Line 5 in longestCommonPrefix (Solution.py) ret = Solution().longestCommonPrefix(param_1) Line 31 in _driver (Solution.py) _driver() Line 41 in <module> (Solution.py) can someone explain why this is wrong?Write Java Program Mr. Patrick is fond of reading books he is looking for a computerized way to keep record of his book collection, you have been given the responsibility to meet up his following requirements. (Use appropriate data structure to accomplish your task), develop following methods: 1. Add(): adds a new book to the list ( A book contains name of the book, author name) NOTE: every new book will have access to its neighboring books (previous and next) 2. Remove():in case any book is removed from the pile update your list 3. countBooks(): displays the total number of books 4. search(): returns true if the given book is present in the list else returns false 5. display(): shows the book collection
- * CENGAGE MINDTAP Programming Exercise 9-2A Instructions MeanMedian.java + 1 import java.util.*; 2 class MeanMedian The mean of a list of numbers is its arithmetic average. The median 3 { of a list is its middle value when the values are placed in order. For public static void main(String[] args) { 4 example, if an ordered list contains 1, 2, 3, 4, 5, 6, 10, 11, and 12, then the mean is 6, and their median is 5. Write an application that allows you to enter nine integers and displays the values, their mean, and their median. An example of the program is shown below: Enter number 6 12 Enter number 7 14 Enter number 8 16 Enter number 9 18 You entered: 2, 4, 6, 8, 10, 12, 14, 16, 18 The mean is 10.0 and the median is 10RESTRICTIONS: - Do not add any imports and do it on python .Do not use recursion. Do not use break/continue.Do not use try-except statements def cost_to_hike_naive(m: list[list[int]], start_point: tuple[int, int], end_point: tuple[int, int]) -> int: """ Given an elevation map <m> and a start and end point, calculate the cost it would take to hike from <start_point> to <end_point>. If the start and end points are the same, then return 0. Some definitions and rules: 1. You can only hike to either a vertically or horizontally adjacent location (you cannot travel diagonally). 2. You must only travel in the direction of the <end_point>. More explicitly, this means that any move you make MUST take you closer to the end point, so you cannot travel in the other direction. 3. We define the cost to travel between two adjacent blocks as the absolute difference in…Subject - Data Structure Write a method, remove, that takes three parameters: an array of integers, the length of the array, and an integer, say, The method should find and delete the first occurrence of removeItem in the array. If the value does not exist or the array is empty, output an appropriate message. (Note that after deleting the element, the array size is reduced by1.) You may assume that the array is unsorted. Test your code with phython array [2,5,7,58,9,14,67,7] removeitem 7 removeitem 20 Thank you in Advance.
- RESTRICTIONS: - Do not add any imports and do it on python .Do not use recursion. Do not use break/continue.Do not use try-except statements. def cost_to_hike_naive(m: list[list[int]], start_point: tuple[int, int],end_point: tuple[int, int]) -> int:"""Given an elevation map <m> and a start and end point, calculate the cost itwould take to hike from <start_point> to <end_point>. If the start and endpoints are the same, then return 0.Some definitions and rules:1. You can only hike to either a vertically or horizontally adjacentlocation (you cannot travel diagonally).2. You must only travel in the direction of the <end_point>. Moreexplicitly, this means that any move you make MUST take you closerto the end point, so you cannot travel in the other direction.3. We define the cost to travel between two adjacent blocks as theabsolute difference in elevation between those blocks.4. You will calculate the naive route here, so at every position, youwill have two…8- What is the difference between the list methods sort() and sorted()? Give examples. (Python)### Q5: Reduce No Change Python def reduce_no_change(fn, lst, base): """Same as Q4. However, preserve the lst in this problem. Object can be any python type which the input Not Allowed To Import Libraries Args: fn (function): Combination function which takes in two arguments and return an value with the same type as the second argument lst (List): A list of any type base (Object): A value of custom type which fn can handle. Returns: Object: A value after applying fn on lst. >>> reducer = lambda x, y: x + y >>> lst = [1, 2, 3] >>> a = reduce_lst(reducer, lst, 0) >>> a # a = reducer(reducer(reducer(base, lst[0]), lst[1]), lst[2]) 6 >>> lst >>> [1, 2, 3] # we preserve the list """ ### Modify your code here ### Modify your code here
- Write JAVA code General Problem Description: It is desired to develop a directory application based on the use of a double-linked list data structure, in which students are kept in order according to their student number. In this context, write the Java codes that will meet the requirements given in detail below. Requirements: Create a class named Student to represent students. In the Student class; student number, name and surname and phone numbers for communication are kept. Student's multiple phones number (multiple mobile phones, home phones, etc.) so phone numbers information will be stored in an “ArrayList”. In the Student class; parameterless, taking all parameters and It is sufficient to have 3 constructor methods, including a copy constructor, get/set methods and toString.Answer with True or False In the binary search method, the list is repeatedly divided into half and the key element is searched in both the halves of the list until the key is found. Select one: O True O FalseCreate Java Book objects using the following data and place them in a List. (Fields: Author, Title, Year, Price) Java Programming,Deitel,2016,68.75Python Programming,Gaddis,2018,78.56Data Analytics,Norman,2017,89.56Block Chain Development,Wilson,2019,87.45Web Development,Brown,2018,98.98 Create TWO List Comparators to sort the Book objects in ascending order: One by Book Title and the second by Book Year. Using each Comparator, SORT the List once by Title and again by Year. NOTE: You MUST use the Comparator to SORT. Cannot use any other built in sort methods. Output each SORTED List on Console in a format same as the data shown above (One Book per line, comma separated).