Breadth-first search question using Prolog arc(a, b). arc(a, f). arc(b, c). arc(b, d). arc(b, e). arc(f, g). arc(f, i). arc(i, j). arc(i, k). goal(j).   search(Paths, Solution):- choose([Node|Nodes], Paths, _), goal(Node), reverse([Node|Nodes], Solution).   search(Paths, Solution):- choose(Path, Paths, RestOfPaths), findall([NewNode|Path], expands(Path, NewNode), Expansions), combine(Expansions, RestOfPaths, NewPaths), search(NewPaths, Solution).   expands([Node|_], NewNode):- arc(Node, NewNode) Question: Implement the breadth-first search strategy for trees by appropriately defining choose/3 and combine/3 in a file called breadth_first.pl

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A:

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A:

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Q: Why isn't an exponent of 127 possible in the single-precision real format?

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