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2874ca9e86
Implements ranks & path compression for union find. --------- Co-authored-by: Alexander McCord <11488393+alexmccord@users.noreply.github.com>
27 lines
516 B
C++
27 lines
516 B
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#pragma once
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#include "Luau/Id.h"
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#include <vector>
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namespace Luau::EqSat
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{
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/// See <https://dl.acm.org/doi/pdf/10.1145/321879.321884>.
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struct UnionFind final
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{
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Id makeSet();
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Id find(Id id) const;
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Id find(Id id);
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void merge(Id a, Id b);
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private:
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std::vector<Id> parents;
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std::vector<int> ranks;
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private:
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Id canonicalize(Id id) const;
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};
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} // namespace Luau::EqSat
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