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Constraint programming is a paradigm for solving computational problems that involves expressing them as a set of constraints. The constraint programming paradigm was first proposed in the 1980s and has since been applied to a wide range of problem domains. The basic idea is to define a search space of potential solutions to a problem and then to apply a set of constraints that rule out those solutions that do not satisfy the requirements of the problem.
A constraint is a statement about a variable, indicating a condition that must be met. For example,
The constraints are then used to guide the search process, determining which solutions are worth exploring
The constraint programming paradigm is widely used in various application domains, such as artificial intelligence, machine