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2 100 2 3 呢?

Posted by T1 at 2005-03-08 20:52:45 on Problem 2206
In Reply To:Re:如果是空集,则么输出? Posted by:dearboy at 2005-03-08 20:45:14
some real subset S of {1, 2, . . .N}
是什么意思?
Is {1, 2, . . .N} the real subset of {1, 2, . . .N}?

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