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汗，原来C++里的cin和scanf的效率差这么多～～

Posted by wangshn at 2009-02-26 22:46:49 on Problem 1002 
同一个程序，用cin，cout，超时～～
改成scanf，printf，AC，耗时1560ms～～

居然差这么多，看来应该都用scanf，printf了～～
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