33 lines
762 B
Ruby
33 lines
762 B
Ruby
module Tables
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class Swap
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private attr_reader :initial_solution
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def initialize(initial_solution)
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@initial_solution = initial_solution
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end
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def each
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@initial_solution.tables.combination(2) do |table_a, table_b|
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table_a.product(table_b).each do |(person_a, person_b)|
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new_solution = @initial_solution.dup
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new_table_a = table_a.dup
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new_table_b = table_b.dup
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new_solution.replace(new_table_a)
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new_solution.replace(new_table_b)
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new_table_a.delete(person_a)
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new_table_b.delete(person_b)
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new_table_a << person_b
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new_table_b << person_a
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new_solution.freeze
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yield(new_solution)
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end
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end
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end
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end
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end
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