4. Sorting: ( Show the following list after the first call to partition in a quicksort. Assume the pivot is the first element of the list. Underline the sorted portion of the list: 14, 12, 56, 18, 3, 12, 99, 8, 77, 55
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- Assume the following list of keys: 16, 38, 54, 80, 22, 65, 55, 48, 64, 95, 5,100, 58, 25, 36 This list is to be sorted using quicksort as discussed in this chapter. Use pivot as the middle element of the list. a.) Give the resulting list after one call to the partition b.) Give the resulting list after two calls to the partitionStarter Code: def find_zero(L): pass def bubble(L, left, right): pass def selection(L, left, right): pass def insertion(L, left, right): pass def sort_halfsorted(L, sort): '''Efficiently sorts a list comprising a series of negative items, a single 0, and a series of positive items Input ----- * L:list a half sorted list, e.g. [-2, -1, -3, 0, 4, 3, 7, 9, 14] <---neg---> <----pos-----> * sort: func(L:list, left:int, right:int) a function that sorts the sublist L[left:right] in-place note that we use python convention here: L[left:right] includes left but not right Output ------ * None this algorithm sorts `L` in-place, so it does not need a return statement Examples -------- >>> L = [-1, -2, -3, 0, 3, 2, 1] >>> sort_halfsorted(L, bubble) >>> print(L) [-3, -2, -1, 0, 1, 2, 3] ''' idx_zero = find_zero(L) # find the 0 index sort(L, 0, idx_zero) # sort left half sort(L, idx_zero+1, len(L)) # sort right halfHow is an array stored in main memory? How is a linked list stored in main memory? What are their comparative advantages and disadvantages? Give examples of data that would be best stored as an array and as a linked list.
- Quicksort's partition function might be modified as follows: Count the amount of values that are strictly fewer than the leftmost value to determine where the leftmost value should go. The final figure is the precise index for the required value. The value at the indexed position should be swapped out with the value on the left. Does this provide an accurate quicksort with the remaining code in place? If not, please explain.2. Searches for any number within the sorted list using Binary search. Searches for any number that is not exist in the sorted list. Use exception handling to print out the corresponding error messageUsing the following instruction below, write a header class for unorderedLinkedList with a function of search, insertFirst, insertLast and deleteNode. Use the library to write a program to show an operation on an unordered linked list. write in C++ program. - Include the unorderedLinkedList.h library in the codes - Initialize a list1 and list2 as unorderedLinkedList type - Declare a variable num as integer data type - Print out an instruction for user to input a numbers ending with -99 - Get a numbers from user input - Use a while loop to insert the numbers into list1 ending with -99 - Print out the current elements in List 1 - Assign list 2 to list 1 - Print out the elements in list 2 - Print the length of list 2 - Get user input for the number to be deleted - Delete the number requested by user in list2 - Print out the elements in the list after delete operation - Print the length of list 2 - Declare the intIt variable to be linked list iterator - Print out the elements in List 1…
- 8.26 LAB: Word frequencies (dictionaries) Implement the build_dictionary() function to build a word frequency dictionary from a list of words. Ex: If the words list is: ["hey", "hi", "Mark", "hi", "mark"] the dictionary returned from calling build_dictionary(words) is: {'hey': 1, 'hi': 2, 'Mark': 1, 'mark': 1} Ex: If the words list is: ["zyBooks", "now", "zyBooks", "later", "zyBooks", "forever"] the dictionary returned from calling build_dictionary(words) is: {'zyBooks': 3, 'now': 1, 'later': 1, 'forever': 1} The main code builds the word list from an input string, calls build_dictionary() to build the dictionary, and displays the dictionary sorted by key value. Ex: If the input is: hey hi Mark hi mark the output is: Mark: 1 hey: 1 hi: 2 mark: 1 Use Python, please.PP 12.7 Using stacks, create a postfix-to-infix converter. Until the user exits, the application should read a postfix expression and print the identical infix expression. If the postfix expression entered is illegal, throw an exception. PP 12.8 Create a ReverseWords class that uses a stack to produce a set of components entered by the user in reverse order.True or False For each statement below, indicate whether you think it is True or False. provide a description of your answer for partial credit in case you are incorrect. 1) Given a stack implemented as an array, and the following functions performed: Push(A), Push (B), Push(C), Pop(), Push(D), Push(E), Pop(), Push(F) a. The array will be [A][B][D][F] and the “top” of the stack will be at index 3 where [F] is b. The next element that will be removed when Pop is called will be A c. If we Push(G), [G] will be inserted at index 0
- 1. In a loop, fill an array for up to 50 even numbers and a set for up to 50 odd numbers. Use the merge() algorithm to merge these containers into a vector. Display the vector contents to show that all went well. (In C++ language) 2. Write a program that copies a source file of integers to a destination file, using stream iterators. The user should supply both source and destination filenames to the program. You can use a while loop approach and a list container with integer data type. Within the loop, read each integer value from the input iterator and add the value to the list container by using push_back() function, then increment the input iterator.Finally, use an output iterator to write the list to the destination file. (In C++ language)11.13 (Python please) Locate the largest element) Write the following function that returns the location of the largest element in a two-dimensional list: def locateLargest(a): The return value is a one-dimensional list that contains two elements. These two elements indicate the row and column indexes of the largest element in the two-dimensional list. Write a test program that prompts the user to enter a two- dimensional list and displays the location of the largest element in the list. Here is a sample run: Enter the number of rows in the list: 3 (press enter) Enter a row: 23.5 35 2 10 (press enter) Enter a row: 4.5 3 45 3.5 (press enter) Enter a row: 35 44 5.5 11.6 (press enter) The location of the largest element is at (1, 2) (press enter)Assume the following list of 16 keys:18, 40, 16, 82, 64, 67, 57, 50, 37, 47, 72, 14, 17, 27, 35, 20 This list is to be sorted using Merge Sort, the number of recursive levels required to finish dividing steps this list is: 4 8 16 3
