[WIP] Understanding Epsilon in Python and List Comprehension

[Copilot]

• Create educational notebook explaining why O(N^2) algorithms can't be used with 3-second time constraints
• Include practical examples and calculations showing the relationship between time complexity and execution time
• Provide clear mathematical explanations with Python code examples
• Show comparisons between different time complexities (O(N), O(N log N), O(N^2), etc.)
• Include real-world examples from competitive programming
• Add practical guidelines for choosing algorithms based on time constraints

Created from VS Code via the GitHub Pull Request extension.

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