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直接数就好了嘛,省得自己算...

Posted by simbaforrest at 2007-07-29 10:28:57 on Problem 1019
In Reply To:分段,再一个一个区间把N对应的数字套住 Posted by:wrong123 at 2005-12-06 19:37:35
先数到所求位在那个区间,再从那个区间的末位数到所求位,这样可以避免自己去数...

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