14 lines
307 B
Ruby
14 lines
307 B
Ruby
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# Brackets class
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class Brackets
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PAIRS = { '[' => ']', '{' => '}', '(' => ')' }.freeze
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def self.paired?(text)
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stack = []
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text.chars.each do |char|
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stack.push(char) if PAIRS.key?(char)
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return false if PAIRS.key(char) && PAIRS.key(char) != stack.pop
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end
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stack.empty?
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end
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end
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