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北京大学《ACM/ICPC大学生程序设计竞赛训练》暑期课面向全球招生!

这题目感觉很繁琐:)

Posted by deep_you at 2005-03-16 17:28:36 on Problem 2277
我的思路是:
开始先读一个进去,然后先通过输入坐标的变化判断是否超界,和其他的错误,
  一个读完以后就开始用一个备用数组,从四个边界找到一个没有被占领的地方,,
然后从这个开始对它周围的点做一些标识,

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