gcd

求[1..n]的约数的和算到10000已经很慢了，不知道要怎么优化，也把递归改成尾递归试过。。

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Latest commit asyr625 Create README.md Jul 3, 2015 f3a1bc0 · Jul 3, 2015 History 2 Commits
README.md	README.md	Create README.md	Jul 3, 2015
gcd.hs	gcd.hs	gcd	Jul 3, 2015

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