ID 题目 显示标签 隐藏标签 AC / 尝试 难度
1999 P2958  [USACO09OCT] Papaya Jungle G 0 / 0 2
2000 P2959  [USACO09OCT] The Leisurely Stroll G 0 / 0 2
2001 P2960  [USACO09OCT] Invasion of the Milkweed G 0 / 0 3
2002 P2961  [USACO09NOV] Who Brings the Cookies? G 0 / 0 6
2003 P2962  [USACO09NOV] Lights G 0 / 0 5
2004 P2963  [USACO09NOV] Cow Rescue G 0 / 0 4
2005 P2964  [USACO09NOV] A Coin Game S 0 / 0 5
2006 P2965  [USACO09NOV] The Grand Farm-off S 0 / 0 2
2007 P2966  [USACO09DEC] Cow Toll Paths G 0 / 0 5
2008 P2967  [USACO09DEC] Video Game Troubles G 0 / 0 5
2009 P2968  [USACO09DEC] Bobsledding S 0 / 0 4
2010 P2969  [USACO09DEC] Music Notes S 0 / 0 2
2011 P2970  [USACO09DEC] Selfish Grazing S 0 / 0 3
2203 P3153  [CQOI2009] 跳舞 0 / 0 6
2204 P3154  [CQOI2009] 循环赛 0 / 0 6
2205 P3155  [CQOI2009] 叶子的染色 0 / 0 5
2222 P3173  [HAOI2009] 巧克力 0 / 0 3
2223 P3174  [HAOI2009] 毛毛虫 0 / 0 4
2248 P3199  [HNOI2009] 最小圈 0 / 0 6
2249 P3200  [HNOI2009] 有趣的数列 0 / 0 6

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根据当前过滤条件随机选择一道题