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几点注意事项...

Posted by 00846086 at 2009-08-19 12:11:21 on Problem 1876
1. 信息中有空行,要保留
2. 缩进是5个空格不是tab
3. 城市按出现顺序,不是字典序
4. 人也是按出现顺序,并且有可能重复出现,只输出一次

祝大家 AC

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