81 道题

ID 题目 显示标签 隐藏标签 AC / 尝试 难度
1193 P2219  [HAOI2007] 修筑绿化带 0 / 0 5
1219 P2254  [NOI2005] 瑰丽华尔兹 0 / 0 5
1249 P2278  [HNOI2003] 操作系统 0 / 0 5
1580 P2564  [SCOI2009] 生日礼物 0 / 0 5
1586 P2569  [SCOI2010] 股票交易 0 / 0 6
1645 P2629  好消息，坏消息 0 / 0 4
1745 P2738  [USACO4.1] 篱笆回路Fence Loops 0 / 0 5
1815 P2784  化学1（chem1）- 化学合成 0 / 0 3
1884 P2827  [NOIP2016 提高组] 蚯蚓 0 / 0 5
1913 P2870  [USACO07DEC] Best Cow Line G 0 / 0 5
1939 P2896  [USACO08FEB] Eating Together S 0 / 0 3
7512 P2923  [USACO08DEC] Winning Checkers G 0 / 0 (无)
2068 P3029  [USACO11NOV] Cow Lineup S 0 / 0 3
2081 P3042  [USACO12JAN] Cow Run G 0 / 0 6
2108 P3069  [USACO13JAN] Cow Lineup G 0 / 0 5
2110 P3071  [USACO13JAN] Seating G 0 / 0 6
2123 P3084  [USACO13OPEN] Photo G 0 / 0 6
2127 P3088  [USACO13NOV] Crowded Cows S 0 / 0 4
2156 P3117  [USACO15JAN] Cow Rectangles G 0 / 0 6
2277 P3228  [HNOI2013] 数列 0 / 0 6

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