Python Assessment Preparation

This repository contains 15 coding challenges to prepare you for the assessment. The main branch is protected, and changes must be submitted via pull requests. GitHub Actions will run unit tests on PR submission.

Project Structure

• solutions.py: Implementation file with TODOs for 15 functions
• test_solutions.py: Unit tests for all functions

Tasks

Implement these functions in solutions.py:

1. mastermind: Calculate Mastermind guess results
2. to_roman: Convert integer to Roman numeral
3. binary_search: Implement binary search
4. fibonacci: Calculate nth Fibonacci number
5. is_palindrome: Check if string is palindrome
6. merge_sorted_arrays: Merge two sorted arrays
7. validate_password: Validate password complexity
8. cash_register: Calculate change in ZAR (R50, R20, R10, R5, R2, R1, 50c, 20c, 10c)
9. are_anagrams: Check for anagrams
10. longest_common_prefix: Find common prefix
11. evaluate_expression: Evaluate arithmetic expression
12. find_duplicates: Find duplicates in array
13. print_pascal_triangle: Generate Pascal's triangle
14. print_diamond_pattern: Generate diamond pattern
15. factorial: Calculate factorial

Each function has a TODO comment for your implementation.

Requirements

• Python 3.8+
• No external dependencies

How to Run Tests

1. Clone the repository
2. Create a branch: git checkout -b your-branch-name
3. Implement solutions in solutions.py
4. Run tests locally:

python -m unittest test_solutions.py

5. Commit and push your branch
6. Create a pull request to main

GitHub Actions

• Pull Rquests trigger a workflow running all unit tests
• All tests must pass for Pull Request approval

Development Guidelines

• Do not modify test file
• Implement functions as specified

These challenges cover algorithms, string manipulation, pattern printing, and practical applications like currency handling.

Good luck!