Python — Solutions

Standard library only (Python 3.10+). All five tasks are in solutions.py.

How to run

python solutions.py

This runs the smoke-test suite at the bottom of the file and prints a result for each task.

Tasks

#	Function / Class	Topic
1	most_common_word	String normalisation, collections
2	merge_intervals	Sorting, greedy algorithm
3	Logger	OOP, data structure choice
4	fib_iterative / fib_memoized	Debugging, recursion tradeoffs
5	group_anagrams	Hashing, grouping

Each function includes a docstring explaining the approach and any tradeoffs.