17 lines
380 B
Ruby
17 lines
380 B
Ruby
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class Primes
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attr_accessor :primes
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def initialize(nb=1)
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puts "Read primes"
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@primes=File.read("firsts_#{nb}MM_primes.txt").split().collect! { |p| p.to_i }
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@is_prime={}
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puts "Init datastructure"
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@primes.each do |p|
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@is_prime[p]=true
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end
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end
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def is_prime(p)
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return @is_prime[p] == true
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end
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end
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