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2 100 2 3 呢?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}? Followed by:
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