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简单，在任何一点作为起点有解，那么必然经A1，那么必然可以以A1作为起点，很简单的逻辑。In Reply To:只看从A1开始的情况成功AC了，可是我还是有一些疑惑，求大神讲解。 Posted by:jndx20111221395 at 2012-06-11 05:29:56 Followed by: Post your reply here: |
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