今年的生日举办的邀请赛各信息在这里归统一下。
题目：20080209.pdf (344.99KB)
解题报告： 20080209_solution.pdf (278.79KB)
测试数据：20080209_data.rar (357.12KB)
推荐时长：3 小时
题目难度：NOIP 级
2008 Upsuper生日邀请赛
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