22 lines
746 B
Factor
22 lines
746 B
Factor
! Copyright (C) 2020 Bubbler.
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! See http://factorcode.org/license.txt for BSD license.
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USING: help.markup help.syntax kernel ;
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IN: rosalind.tree
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HELP: tree
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{ $values
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{ "n" "An integer" } { "adjlist" "A sequence" }
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{ "ans" "An integer" }
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}
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{ $description "Solves the problem TREE on Rosalind: given the number of nodes and the adjacency list of a graph, compute how many additional edges are needed to make it a tree." { $nl "" }
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"Uses the fact that a tree of n nodes has n-1 edges, so the answer is (n-1) - (number of existing edges)." } ;
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HELP: tree-main
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{ $description "Solves the problem TREE on Rosalind, using a real dataset." } ;
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ARTICLE: "rosalind.tree" "rosalind.tree"
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{ $vocab-link "rosalind.tree" }
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;
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ABOUT: "rosalind.tree"
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