9 lines
177 B
Ruby
9 lines
177 B
Ruby
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require "date"
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sundays = 0
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(1901..2000).each do |year|
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(1..12).each do |month|
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dt = Date.new(year,month,1)
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sundays += (dt.wday == 0) ? 1 : 0
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end
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end
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puts sundays
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