Create a Linked List data structure by writing your own node class.Just the way we explored...
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Create a Linked List data structure by writing your own node class.Just the way we explored it in the Lecture, your node class will house the data (integer in this case) and a pointer to the next node element. Populate your linked list with the following integers and print it. 50, 11, 33, 21, 40, 71 No you do not need to print the commas :) Delete N-th node from the end of the linked list and print the linked list af- ter deletion. Here N 21 Below is the expected output after deleting the second last element. 50, 11, 33, 21, 71 ATTN: Note: Here we do not know the length of the list. Complete the above deletion operation without calculating the length of the list. Your solution should only make a single pass through the linked list, adhering to O(n) time complexity overall and O(1) space complexity. Hint: Maintain two pointers: a Fast' Pointer and a 'Slow' pointer. Declare a Node called "Dummy' whose next pointer points to the head of the given list. Initialize the 'Slow' pointer to a dummy node and the Fast' pointer pointing to the head of the list. Then starting a counter from zero, move the 'Fast pointer two places forward, to maintain a gap of two (this two comes of "second" last) between the fast and slow pointers. Thereafter, move both pointers in tandem. Finally, when the fast pointer reaches the end of the list (points to NULL), the slow pointer will be at the third last node. You can now delete the second last node. Create a Linked List data structure by writing your own node class.Just the way we explored it in the Lecture, your node class will house the data (integer in this case) and a pointer to the next node element. Populate your linked list with the following integers and print it. 50, 11, 33, 21, 40, 71 No you do not need to print the commas :) Delete N-th node from the end of the linked list and print the linked list af- ter deletion. Here N 21 Below is the expected output after deleting the second last element. 50, 11, 33, 21, 71 ATTN: Note: Here we do not know the length of the list. Complete the above deletion operation without calculating the length of the list. Your solution should only make a single pass through the linked list, adhering to O(n) time complexity overall and O(1) space complexity. Hint: Maintain two pointers: a Fast' Pointer and a 'Slow' pointer. Declare a Node called "Dummy' whose next pointer points to the head of the given list. Initialize the 'Slow' pointer to a dummy node and the Fast' pointer pointing to the head of the list. Then starting a counter from zero, move the 'Fast pointer two places forward, to maintain a gap of two (this two comes of "second" last) between the fast and slow pointers. Thereafter, move both pointers in tandem. Finally, when the fast pointer reaches the end of the list (points to NULL), the slow pointer will be at the third last node. You can now delete the second last node.
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Related Book For
Java An Introduction To Problem Solving And Programming
ISBN: 9780134462035
8th Edition
Authors: Walter Savitch
Posted Date:
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