10 lines
233 B
Ruby
10 lines
233 B
Ruby
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require 'date'
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number_of_sundays = 0
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(DateTime.new(1901, 1, 1)..DateTime.new(2000, 12, 31)).each do |day|
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if day.strftime("%A") == "Sunday" && day.strftime("%d") == "01"
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number_of_sundays += 1
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end
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end
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puts number_of_sundays
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