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Re:用不着怎么麻烦吧

Posted by wuyifan at 2006-08-19 10:45:03 on Problem 2975
In Reply To:用不着怎么麻烦吧 Posted by:nuanran at 2006-08-19 09:41:50
把所有数异或,看最左边一个1是第几位,所有那一位是1的数都可以。

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