C++博客-Puzzle-随笔分类-Europe套题http://www.cppblog.com/puzzle/category/15028.htmlzh-cnSun, 26 Sep 2010 22:12:12 GMTSun, 26 Sep 2010 22:12:12 GMT60Central European Programming Contest 2009http://www.cppblog.com/puzzle/archive/2010/09/26/127792.htmlPuzzlePuzzleSun, 26 Sep 2010 11:14:00 GMThttp://www.cppblog.com/puzzle/archive/2010/09/26/127792.htmlhttp://www.cppblog.com/puzzle/comments/127792.htmlhttp://www.cppblog.com/puzzle/archive/2010/09/26/127792.html#Feedback0http://www.cppblog.com/puzzle/comments/commentRss/127792.htmlhttp://www.cppblog.com/puzzle/services/trackbacks/127792.html

Better and faster!

题目大意为给你一个字符串，给定一个特定函数可以计算该字符串的校验和。现在有若干询问，每个询问可以修改字符串的某个字符。对于每次询问要求输出新的校验和。



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