January 2020
Intermediate to advanced
346 pages
9h 8m
English
Content preview from Hands-On Genetic Algorithms with Python
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Python problem representation
To encapsulate the N-Queens problem, we've created a Python class called NQueensProblem. This class can be found in the queens.py file of this book's GitHub repository, at https://github.com/PacktPublishing/Hands-On-Genetic-Algorithms-with-Python/blob/master/Chapter05/queens.py.
The class is initialized with the desired size of the problem and provides the following public methods:
- getViolationsCount(positions): Calculates the number of violations in the given solution, which is represented by a list of indices, as discussed in the previous subsection
- plotBoard(positions): Plots the positions of the queens on the board according to the given solution
The main method of the class exercises the class' methods ...
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