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10分钟肯定是之前做过了，POJ放这套题出来真是晚……In Reply To:Re:据说可以无限长 Posted by:xoyo1003 at 2005-08-13 01:20:14 > 无限长是可以，用深度优先搜索。 > 这只是最笨的办法，我用了1100MS， > 像这样问题应该有技巧吧？我看有人用10多分钟就做出来了，那时候我连题还没弄懂呢。谁有好的办法请教请教啊 > > 难道说有什么循环的规律？ Followed by:
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