19 lines
253 B
Ruby
19 lines
253 B
Ruby
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# sieve of Eratosthenes
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sieve = []
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if ! max = ARGV.shift; max = 100; end
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max = max.to_i
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print "1"
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for i in 2 .. max
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begin
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for d in sieve
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fail if i % d == 0
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end
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print ", "
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print i
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sieve.push(i)
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rescue
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end
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end
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print "\n"
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