Population count: Difference between revisions
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end |
end |
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puts "Powers of 3:", (0...30).map{|n| (3u64 |
puts "Powers of 3:", (0...30).map{|n| (3u64 ** n).popcount}.join(' ') # use &** to prevent arithmetic overflow |
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puts "Evil:" , 0.step.select(&.evil?).first(30).join(' ') |
puts "Evil:" , 0.step.select(&.evil?).first(30).join(' ') |
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puts "Odious:", 0.step.reject(&.evil?).first(30).join(' ')</lang> |
puts "Odious:", 0.step.reject(&.evil?).first(30).join(' ')</lang> |