Artificial intelligence
What is a heuristic function?

A function to solve mathematical problems
A function whose return type is nothing
A function which takes parameters of type string and returns an integer value
A function that maps from problem state descriptions to measures of desirability

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Artificial intelligence
A heuristic is a way of trying __________

To search and measure how far a node in a search tree seems to be from a goal
To compare two nodes in a search tree to see if one is better than the other is
To discover something or an idea embedded in a program
All of the mentioned

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