Precourse1 Done

[PavanKaushikAduri]

No description provided.

[super30admin]

Exercise_1 (myStack using Python list):

• Correctness: The implementation is correct. All operations (push, pop, peek, isEmpty, size, show) work as expected for a stack data structure.
• Time Complexity: The analysis is accurate. Push is O(1) amortized, pop and peek are O(1), and show is O(n) due to slicing.
• Space Complexity: O(n) is correct.
• Code Quality: Good use of comments explaining the approach. However, using del self.stack[-1] is less Pythonic than self.stack.pop() which is both clearer and more efficient.

Exercise_2 (Stack using Linked List):

• Correctness: The implementation is correct. Push and pop operations at the head are properly implemented with O(1) time complexity.
• Time Complexity: Correctly identified as O(1) for both operations.
• Space Complexity: O(n) is correct.
• Code Quality: Clean implementation with good vertical thinking explanation. The interactive driver code is a nice touch for testing.

Exercise_3 (SinglyLinkedList):

• Correctness: The implementation is correct. Append, find, and remove operations work properly. The remove method correctly handles the edge case of removing the head node.
• Time Complexity: Correctly identified - append is O(n), find is O(n), remove is O(n).
• Space Complexity: O(n) is correct.
• Code Quality: Well-structured with clear comments. The two-pointer approach for remove is well explained.

Areas for Improvement across all exercises:

1. Could add type hints for better code documentation
2. The interactive input handling in Exercise_2 could be more robust with error handling
3. Consider adding docstrings to classes and methods for better documentation