Population count: Difference between revisions
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puts "Powers of 3:", (0...30).map{|n| (3u64 &** n).popcount}.join(' ') # &** to prevent arithmetic overflow |
puts "Powers of 3:", (0...30).map{|n| (3u64 &** n).popcount}.join(' ') # &** to prevent arithmetic overflow |
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puts "Evil:" , |
puts "Evil:" , 1.step.select(&.evil?).first(30).join(' ') |
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puts "Odious:", |
puts "Odious:", 1.step.reject(&.evil?).first(30).join(' ')</lang> |
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{{ |
{{Out}}<pre>Powers of 3: |
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1 2 2 4 3 6 6 5 6 8 9 13 10 11 14 15 11 14 14 17 17 20 19 22 16 18 24 30 25 25 |
1 2 2 4 3 6 6 5 6 8 9 13 10 11 14 15 11 14 14 17 17 20 19 22 16 18 24 30 25 25 |
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Evil: |
Evil: |
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3 5 6 9 10 12 15 17 18 20 23 24 27 29 30 33 34 36 39 40 43 45 46 48 51 53 54 57 58 60 |
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Odious: |
Odious: |
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1 2 4 7 8 11 13 14 16 19 21 22 25 26 28 31 32 35 37 38 41 42 44 47 49 50 52 55 56 59 |
1 2 4 7 8 11 13 14 16 19 21 22 25 26 28 31 32 35 37 38 41 42 44 47 49 50 52 55 56 59 |
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