This Python script is designed to count the number of connected areas of '1's in a given matrix. It accepts a string representation of a matrix, converts it into a 2D matrix, and then utilizes depth-first search (DFS) to identify and count connected areas.
- Input validation for matrix size and format.
- Depth-first search algorithm to identify connected areas.
- Handles various edge cases like empty strings, non-square matrices, and matrices with invalid characters.
- Python 3.x
Run the script in a Python environment. Input the matrix as a string where rows are separated by semicolons (;) and columns by commas (,).
Example:
python main.py
Enter the matrix string: 1,0,1;0,1,0
Number of areas: 3
The tests directory contains unit tests for the script. To run the tests, use the following command:
python -m unittest discover -s tests