Homework 1 exercises done

[Bhuvankurra]

No description provided.

[super30admin]

The student's solution demonstrates a good understanding of basic data structures and their implementations. Here's a detailed evaluation:

1. Correctness:

• Exercise_1.py: The stack implementation using a list is correct and handles edge cases like empty stack for pop() and peek().
• Exercise_2.py: The linked list implementation of stack is correct with proper push/pop operations.
• Exercise_3.py: The singly linked list implementation is correct with proper append, find, and remove operations.

2. Time Complexity:

• The student has correctly identified time complexities for all operations in each file.
• Exercise_1.py: All operations except show() are O(1), show() is O(n) - correct.
• Exercise_2.py: push/pop are O(1) - correct.
• Exercise_3.py: append/find/remove are O(n) - correct.

3. Space Complexity:

• Space complexities are correctly identified for all implementations.
• The student correctly notes that space complexity is O(n) where n is the number of elements.

4. Code Quality:

• Good use of comments and docstrings.
• Proper class and method naming.
• Consistent indentation and formatting.
• Could improve by adding more docstrings in Exercise_2.py to explain methods.
• The test cases could be more comprehensive to cover edge cases.

5. Efficiency:

• All implementations are efficient for their respective data structures.
• No major optimizations needed, though some small improvements could be made:
  • In Exercise_3.py, remove() could return a boolean to indicate success/failure.
  • In Exercise_2.py, adding a size() method would be useful.

Additional suggestions:

• Consider adding type hints for better code documentation.
• Add more edge case testing (e.g., removing non-existent elements in Exercise_3.py).
• In Exercise_2.py, consider adding input validation for the push operation.