Assume the following list of keys: 18, 40, 16, 82, 64, 67, 57, 50, 37, 47, 72, 14, 17, 27, 35 This list is to be sorted using quicksort as discussed in this chapter. Use pivot as the median of the first, last, and middle elements of the list. What is the pivot? a. b. Give the resulting list after one call to the partition procedure.
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- Which of the following statements regarding linked lists and arrays is correct? Group of answer choices: a. A dynamically resizable array makes insertions at the beginning of an array very efficient. b. Using a doubly linked list is more efficient than an array when accessing the ith element of a structure. c. A dynamically resizable array is another name for a linked list. d. Any type of list tends to be better than an array when there are a set number of maximum items known beforehand. e. If many deletions at any place in the structure were common, a linked list implementation would likely be preferable to an arraySuppose a list contains the final exam results of CSE110, PHY111, and MAT110 of each student in a listed form. Your task is to sort the list based on a course name that will be given by the user and print the names after sorting. For example, a list looks likelst = [ ["Farzad",95,87,91] , ["Mahjabin",92,90,83], ["Sadman",87,92,80], ["Nakhla",85,94,90] ]where for each list, 1st index is name, 2nd index is CSE110, 3rd index is PHY111 and 4th index is MAT110. ===================================================== Hint:create a python function for sorting, then call it everytime instead of rewriting the code. Get the data in the individual lists from the given nested list. ===================================================== Sample InputMAT110 Sample OutputFarzadNakhlaMahjabinSadmanPlease help me write the following function (see the photos for context of the problem): follow_trail(filename, treasure_map, start_row, start_col): Takes as inputs a string corresponding to a filename, a list of lists corresponding to a treasure map, and two non-negative integers representing a row and column index. Follows the trail in the given treasure map, starting at the given row and column index. Following the trail means to look at each character of the trail and perform the appropriate operation for that character: '>', '<', 'v', ' ∧': Continues following the trail by moving to the character to the right, left, below or above the current trail character, respectively. '.': Creates a new map file, with 'new_' prepended to the current map filename, and stores the same treasure map but with an X at the current position. Then, returns a tuple of three elements: the first being -1, and the latter two being the current row and column index. '*': Returns a tuple of three…
- True/False Select true or false for the statements below. Explain your answers if you like to receive partial credit. 3) Which of the following is true about the insertBeforeCurrent function for a CircularLinked List (CLL) like you did in programming exercise 1?a. If the CLL is empty, you need to create the new node, set it to current, andhave its next pointer refer to itselfb. The worst case performance of the function is O(n)c. If you insert a new element with the same data value as the current node, theperformance improves to O(log n)A list is ... Select one: a. a unordered collection of data values, were each value is identified by an index. b. a sequential collection of data values, storing index values c. a sequential collection of data values, were each value is identified by an index. d. a sequential collection of data values, storing index valued.Given pointers to the head nodes of linked lists that merge together at some point, find the node where the two lists merge. The merge point is where both lists point to the same node, i.e. they reference the same memory location. It is guaranteed that the two head nodes will be different, and neither will be NULL. If the lists share a common node, return that node's value. Note: After the merge point, both lists will share the same node pointers. Example In the diagram below, the two lists converge at Node x: [List #1] a--->b--->c \ x--->y--->z--->NULL / [List #2] p--->q Function Description Complete the findMergeNode function in the editor below. findMergeNode has the following parameters: SinglyLinkedListNode pointer head1: a reference to the head of the first list SinglyLinkedListNode pointer head2: a reference to the head of the second list Returns int: the value of the node where the lists merge Input Format Do not read any input from…
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- The following code doesn't correctly return the index values of the minimum contiguous subsequence. Please modify it so that it does, with comments if possible. def minSumRec(a, left, right): if left == right: return [a[left], left, right] center = int((left + right) / 2) min_left_sum = minSumRec(a, left, center) min_right_sum = minSumRec(a, center + 1, right) min_left_border_sum, left_border_sum = 1e9, 0 for i in range(center, left - 1, -1): left_border_sum += a[i] if left_border_sum < min_left_border_sum: min_left_border_sum = left_border_sum min_right_border_sum, right_border_sum = 1e9, 0 for i in range(center + 1, right + 1): right_border_sum += a[i] if right_border_sum < min_right_border_sum: min_right_border_sum = right_border_sum min_border_sum = min_right_border_sum + min_left_border_sum minSum = min(min_left_sum[0], min_right_sum[0], min_border_sum) if minSum == min_left_sum: return min_left_sum if minSum == min_right_sum: return min_right_sum return…Suppose that a shopkeeper decided that customers who come first will be served first. A list of customers must be maintained so that anyone can be accessed randomly. Your program must remember operations it performed in opposite order. The entries should be managed based on order of arrival and also be deleted when no longer needed. The size of a file is unknown. A list must be maintained so that elements can be added to the beginning or end in O (1).Based on above scenario you have list of different data structures, choose appropriate among them and implement using java. It is important that structure has flexible memory management. NOTE: Answer must be in Java EclipseSuppose that a shopkeeper decided that customers who come first will be served first. A list of customers must be maintained so that anyone can be accessed randomly. Your program must remember operations it performed in opposite order. The entries should be managed based on order of arrival and also be deleted when no longer needed. The size of a file is unknown. A list must be maintained so that elements can be added to the beginning or end in O (1). Based on above scenario you have list of different data structures, choose appropriate among them and implement using java. It is important that structure has flexible memory management (Note : The code should be implemented in java programming)