17 lines
315 B
Ruby
17 lines
315 B
Ruby
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require 'Set'
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# @param {String} text
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# @return {String}
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def remove_duplicate_characters(text)
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visited_characters = Set.new
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new_text = ''
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text.each_char do |character|
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new_text += character unless visited_characters.include? character
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visited_characters << character
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end
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new_text
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end
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