Zodiac Signs - codepath/compsci_guides GitHub Wiki

Unit 5 Session 1 (Click for link to problem statements)

U-nderstand

Understand what the interviewer is asking for by using test cases and questions about the problem.

• What is the correct order of the nodes in the linked list according to the given list?
  • The nodes must be connected in the order: "aries", "taurus", "gemini", "cancer".

P-lan

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Sequentially link nodes representing the elements "aries", "taurus", "gemini", and "cancer" to form a linked list.

1) Create a node for each element in the given list and assign each to a variable (head, second, third, tail).
2) Link each node to the next using the `next` attribute to form a sequence:
  - Link `head` (aries) to `second` (taurus).
  - Link `second` to `third` (gemini).
  - Link `third` to `tail` (cancer).

⚠️ Common Mistakes

• Incorrectly linking nodes, which could lead to nodes being out of the intended order.
• Failing to link the last node (cancer), which would result in an incomplete list.

I-mplement

head = Node('aries')
second = Node('taurus')
third = Node('gemini')
tail = Node('cancer')

head.next = second
second.next = third
third.next = tail