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过了。原来如此。理解错题了。In Reply To:每一行看，至少有一个白格，从每一列看，有且仅有一个白格被射中，也就是说为每一行匹配一个列，其余的列随意指定 Posted by:sunmoonstar_love at 2005-08-09 00:21:00 Followed by: Post your reply here: |
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