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Created April 8, 2016 15:14
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static vars
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static_ruby.rb
class Prime
@@start=2; def is_prime? num; flag = true; while ( @@start < num ); begin;flag = false; break;end if num % @@start == 0; @@start+=1;end;flag; end
end
pr = Prime.new; [*1..10].map { |i| Thread.new { p i.to_s + pr.is_prime?(i).to_s } }.each(&:join)
"2true"
"1true"
"3true"
"4true"
"5true"
"6true"
"8true"
"10true"
"9true"
"7true"
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