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In algorithms and problem-solving, particularly in the field of artificial intelligence and search algorithms, "path cost" refers to the numerical cost associated with a specific path from one state to another:

     i) Path: 

A sequence of states and actions that lead from one state to another. 

     ii) Path Cost: 

The numerical value assigned to a path, representing the cumulative cost of traversing that path. This cost could be associated with factors such as time, distance, resources, or any other relevant metric, depending on the specific problem domain.

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