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ICT208 Algorithms and Data Structures

Assessment 2: Linked-List Case Study 1 – Vaccination Centre

Linked Lists- Case study 1

In this assessment, students will analyse a case and develop linked structures by using pointers and finally write code.

 

Due in week 7

40%

1,2,3,4

Case study:

A linked list is a linear data structure, in which the elements are not stored at contiguous memory locations. The elements in a linked list are linked using pointers as shown in the below image:

Each element in the link is called a node which is composed of two parts:

a. Data stored by the node

b. Link pointed to the next node in the linked list

In this assessment 2, you are required to develop a Linked List in visual studio called LinkedList.cpp which uses a Linked List to the order in which people arrive at a vaccination clinic.

1. Node in the linked list with appropriate data types: each node stores the person’ name and the person’s current position (index) in the Linked List and link to the next node in the Linked List. Every time a new person arrives, a new node is created and added to the linked list. The position (index) of new node is one more than that of the previous node.

2. Deletion − Deletes a node at the beginning of the linked list: method signature is void deleteFirst()

3. Insert Last − Adds a node at the end of the linked list: method signature is void insertLast(String newPersonName)

4. Delete Last − Deletes a node from the end of the linked list: method signature is void deleteLast()

5. Insert before − Adds a node before another node (according to the provided index in the method parameter) of the linked list: method signature is void insertAfter(int index)

6. Delete − Deletes a node from the linked list using the index: method signature is voide deleteAfter(int index)

7. Search – Search through the linked list to identify the first occurrence of node with match data against the target: method signature is int search(String PersonName)

8. Display − Displays the complete linked list in a forward manner: method signature is String display( )

The following reference sites can be of helpful to enhance your understanding of Linked List class structure based on Node and associated methods:

1. https://www.geeksforgeeks.org/data-structures/linked-list/

2. https://www.freecodecamp.org/news/data-structures-explained-with-examples-linked-list/

3. https://beginnersbook.com/2013/12/linkedlist-in-java-with-example/

Submission requirement: upload the LinkedList.cpp to Moodle by week 7.

Marking rubric

Marking criteria

Lecturer expectation

Marks

Declaration of node in Linked List

Node contains correct data members with data types

10

Insertion of node at the front, or after another node using index or end of Linked List

Insertion, insert last, insert after methods are correctly implemented with comments

35

Deletion of node at the front or using an index or at end of Linked List

Deletion, delete last, delete are correctly implemented with comments

35

Search through the linked list to identify the first occurrence of node with matching key

Search is correctly implemented with comments

10

Display the complete linked list from front node to the end node of their stored browsing URL

Display is correctly implemented with comments

10

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