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41 lines
635 B
Ruby
41 lines
635 B
Ruby
# This file contains the Ruby code from book of
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# "Data Structures and Algorithms
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# with Object-Oriented Design Patterns in Ruby"
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# by Bruno R. Preiss.
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#
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# Copyright (c) 2004 by Bruno R. Preiss, P.Eng. All rights reserved.
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module PriorityQueueMethods
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abstractmethod :enqueue
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abstractmethod :min
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abstractmethod :dequeueMin
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end
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class PriorityQueue < Container
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def initialize
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super
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end
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include PriorityQueueMethods
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end
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module MergeablePriorityQueueMethods
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abstractmethod :merge!
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end
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class MergeablePriorityQueue < PriorityQueue
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def initialize
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super
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end
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include MergeablePriorityQueueMethods
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end |