Created
January 23, 2012 23:36
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#!/usr/bin/env ruby | |
# -*- coding: utf-8 -*- | |
require 'prime' | |
# 最初の1000個の素数の合計 | |
puts Prime.each(nil, Prime::EratosthenesGenerator.new).each_with_index.inject(0) { |sum, (elem, index)| | |
break sum if index > 1000 | |
sum += elem | |
} |
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