In practice, time complexity affects how your Python scripts perform with real-world data. Imagine running a script that processes large datasets; an O(n^2) complexity could mean hours of waiting ...

In Python, where ease of use often trumps raw performance, understanding time complexity can guide you in choosing the right data structures and algorithms that scale well.

Used Python's OrderedDict as Cache. This keeps the cache insertion ordered. Deleting an element and reinserting it will move the element to end of cache. OrderedDict are implemented as Hash Tables.

Implement an LRU (Least Recently Used) cache. An LRU cache is a cache that has a maximum capacity. When the cache is full, the least recently used item is removed to make room for the new item. The ...