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路过的大牛,问一下。

Posted by hqa at 2008-03-23 11:27:43 on Problem 3530
For the rest of our discussion, we assume that the solution x exists and, without loss of generality, 0 ≤ L ≤ R < M. 难道说如果解存在,就有 0 ≤ L ≤ R < M这个不等式满足吗?

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