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Python For Loop Tests: Shapes and Counting

This test suite is designed to help you practice and improve your Python programming skills, particularly with loops, list comprehensions, and string manipulations. It contains 25 functions to implement, covering a range of difficulties from beginner to hard.

How to Use This Test Suite

1. Implement the functions in a separate Python file (e.g., solutions.py).
2. Copy the test class TestLoopsAndShapes into your test file (e.g., test_solutions.py).
3. Run the tests using a test runner like pytest or by running python -m unittest test_solutions.py.

List of Functions to Implement

1. count_items(items)
2. sum_numbers(numbers)
3. find_largest(numbers)
4. count_even_numbers(numbers)
5. sum_digits(number)
6. count_vowels(string)
7. multiply_list_elements(numbers)
8. create_number_triangle(n)
9. fibonacci_sequence(n)
10. remove_vowels(string)
11. create_multiplication_table(n)
12. count_character_frequency(string)
13. reverse_words(sentence)
14. spiral_matrix(n)
15. pascal_triangle(n)
16. longest_common_subsequence(str1, str2)
17. count_inversions(arr)
18. create_hollow_square(n)
19. create_diamond(n)
20. create_hourglass(n)
21. create_spiral_string(n)
22. create_alphabet_diamond(n)
23. create_number_spiral(n)
24. create_pyramid(n)
25. create_number_triangle(n)

Good luck, and happy coding!