CSC1001: Computer Science Programming Methodology Assignment 4
This assignment will be worth 16% of the final grade.
You should write your code for each question in a .py file (please name it using the
question name, e.g. q1.py). Please pack all your .py files into a single .zip file, name it using
your student ID (e.g. if your student ID is 123456, then the file should be named as
123456.zip), and then submit the .zip file via Blackboard.
Please also write a text file, which provide the details. (Note that the report should be
submitted as PDF) The report should be included in the .zip file as well.
Please note that, the teaching assistant may ask you to explain the meaning of your
program, to ensure that the codes are indeed written by yourself. Plagiarism will not be
tolerated. We may check your code using Blackboard.
This assignment is due on 5:00PM, 21 May (Friday). For each day of late submission, you
will lose 10% of your mark in this assignment. If you submit more than three days later
than the deadline, you will receive zero in this assignment.
Question 1 (20% of this assignment):
Write a Python class called SinglyLinkedList. The class should contain a method named
recursive_count which recursively counts the number of nodes in a singly linked list.
The input of the recursive_count function should be a reference pointing to the first
node of the linked list. The output of the function should be the number of nodes in that
Note that you also need to implement the constructor and insert method (which takes data to be
inserted as argument) for SinglyLinkedList class. You may also implement any other method
within the class as you want. Your class should look like the following. (Please follow the
same names of class and methods in the following example)
Question 2 (30% of this assignment):
Follow the same setting in Q1. Write the method named quick_sort inside
SinglyLinkedList class which uses quick sort algorithm to sort over a singly linked list.
The input of your function should be a reference pointing to the first node of a linked list,
and the output of your function should also be a reference to the first node of a linked
list, in which the data have been sorted into the ascending order.
You may use the LinkedQueue class we introduced in the lecture directly in your
program. Note that you also need to implement the constructor and insert method (which takes data
to be inserted as argument) for SinglyLinkedList class.
You may also implement any other method within the class as you want. Your class
should look like the following. (Please follow the same names of class and methods in
the following example)
Question 3 (50% of this assignment):
The Tower of Hanoi is a mathematical game or puzzle. It consists of three rods, and a number of
disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack
in ascending order of size on one rod, the smallest at the top, thus making a conical shape. The
following figure shows the initial state of the Tower of Hanoi with 5 disks.
The objective of the puzzle is to move the entire stack to another rod, obeying the following simple
1. Only one disk can be moved at a time.
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