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麻烦有谁能给我解释一下这题的意思么？ 1 2 5 10的输出怎么会是17呢？难道不应该是19么？

Posted by azazasyb at 2010-02-02 15:06:17 on Problem 1700 
有谁能告诉我一下么？谢谢了~~~
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