ID Problem Show tags Hide tags AC / Tried Difficulty
5 P1005  [NOIP2007 提高组] 矩阵取数游戏 5 / 8 4
93 P1093  [NOIP2007 普及组] 奖学金 29 / 62 2
94 P1094  [NOIP2007 普及组] 纪念品分组 31 / 90 2
95 P1095  [NOIP2007 普及组] 守望者的逃离 3 / 3 3
96 P1096  [NOIP2007 普及组] Hanoi 双塔问题 3 / 3 3
97 P1097  [NOIP2007 提高组] 统计数字 37 / 110 2
98 P1098  [NOIP2007 提高组] 字符串的展开 1 / 1 2
99 P1099  [NOIP2007 提高组] 树网的核 3 / 4 4
110 P1110  [ZJOI2007] 报表统计 0 / 4 5
129 P1129  [ZJOI2007] 矩阵游戏 4 / 5 5
131 P1131  [ZJOI2007] 时态同步 0 / 0 4
169 P1169  [ZJOI2007] 棋盘制作 1 / 1 4
357 P1360  [USACO07MAR] Gold Balanced Lineup G 0 / 0 5
457 P1463  [POI2001] [HAOI2007] 反素数 1 / 1 5
467 P1474  [USACO2.3] Money System / [USACO07OCT] Cow Cash G 1 / 2 3
580 P1588  [USACO07OPEN] Catch That Cow S 0 / 0 2
598 P1606  [USACO07FEB] Lilypad Pond G 0 / 0 6
615 P1623  [CEOI2007] 树的匹配 Treasury 0 / 0 6
640 P1649  [USACO07OCT] Obstacle Course S 0 / 0 3
779 P1821  [USACO07FEB] Cow Party S 1 / 1 3
799 P1841  [JSOI2007] 重要的城市 0 / 0 5
994 P2047  [NOI2007] 社交网络 0 / 0 4
1000 P2053  [SCOI2007] 修车 0 / 0 6
1003 P2056  [ZJOI2007] 捉迷藏 0 / 0 6
1004 P2057  [SHOI2007] 善意的投票 / [JLOI2010] 冠军调查 1 / 1 5
1008 P2061  [USACO07OPEN] City Horizon S 0 / 0 5
2976 P2099  [NOI2007] 调兵遣将 0 / 0 7
3002 P2109  [NOI2007] 生成树计数 0 / 0 6
1333 P2120  [ZJOI2007] 仓库建设 1 / 1 6
1126 P2144  [FJOI2007] 轮状病毒 0 / 0 6
1127 P2145  [JSOI2007] 祖玛 0 / 0 6
1142 P2160  [SHOI2007] 书柜的尺寸 0 / 0 6
1144 P2162  [SHOI2007] 宝石纪念币 0 / 0 7
1146 P2163  [SHOI2007] 园丁的烦恼 1 / 1 5
1145 P2164  [SHOI2007] 交通网络 0 / 0 6
1193 P2215  [HAOI2007] 上升序列 0 / 0 5
1194 P2216  [HAOI2007] 理想的正方形 3 / 3 4
1195 P2217  [HAOI2007] 分割矩阵 0 / 0 5
1196 P2218  [HAOI2007] 覆盖问题 0 / 0 6
1197 P2219  [HAOI2007] 修筑绿化带 0 / 0 5
1225 P2261  [CQOI2007] 余数求和 1 / 1 5
1039 P2272  [ZJOI2007] 最大半连通子图 3 / 5 5
1379 P2385  [USACO07FEB] Bronze Lilypad Pond B 0 / 0 3
1419 P2411  [USACO07FEB] Silver Lilypad Pond S 0 / 0 5
1469 P2459  [SDOI2007] 立体分割 0 / 0 2
1470 P2460  [SDOI2007] 科比的比赛 0 / 0 6
1472 P2462  [SDOI2007] 游戏 0 / 0 6
1485 P2470  [SCOI2007] 压缩 0 / 0 6
1487 P2471  [SCOI2007] 降雨量 0 / 0 5
1488 P2472  [SCOI2007] 蜥蜴 0 / 0 6
1678 P2666  [USACO07OCT] Bessie's Secret Pasture S 0 / 0 2
1701 P2676  [USACO07DEC] Bookshelf B 0 / 0 1
1702 P2677  [USACO07DEC] Bookshelf 2 B 6 / 54 2
2677 P2776  [SDOI2007] 小组队列 0 / 0 3
1915 P2868  [USACO07DEC] Sightseeing Cows G 0 / 0 6
1916 P2869  [USACO07DEC] Gourmet Grazers G 0 / 0 5
1917 P2870  [USACO07DEC] Best Cow Line G 1 / 1 5
1918 P2871  [USACO07DEC] Charm Bracelet S 1 / 1 2
1919 P2872  [USACO07DEC] Building Roads S 0 / 0 3
1920 P2873  [USACO07DEC] Mud Puddles S 0 / 0 2
1921 P2874  [USACO07FEB] Building A New Barn G 0 / 0 5
1922 P2875  [USACO07FEB] The Cow Lexicon S 0 / 0 5
1923 P2876  [USACO07JAN] Problem Solving G 0 / 0 5
1924 P2877  [USACO07JAN] Cow School G 0 / 0 6
1925 P2878  [USACO07JAN] Protecting the Flowers S 0 / 0 3
1926 P2879  [USACO07JAN] Tallest Cow S 0 / 0 4
1927 P2880  [USACO07JAN] Balanced Lineup G 4 / 4 3
1928 P2881  [USACO07MAR] Ranking the Cows G 0 / 0 4
1929 P2882  [USACO07MAR] Face The Right Way G 0 / 0 5
1930 P2883  [USACO07MAR] Cow Traffic S 0 / 0 5
1931 P2884  [USACO07MAR] Monthly Expense S 0 / 0 3
1932 P2885  [USACO07NOV] Telephone Wire G 0 / 0 5
1933 P2886  [USACO07NOV] Cow Relays G 0 / 0 5
1934 P2887  [USACO07NOV] Sunscreen G 0 / 0 3
1935 P2888  [USACO07NOV] Cow Hurdles S 0 / 0 3
1936 P2889  [USACO07NOV] Milking Time S 0 / 0 3
1937 P2890  [USACO07OPEN] Cheapest Palindrome G 0 / 0 5
1938 P2891  [USACO07OPEN] Dining G 0 / 0 6
3003 P2892  [NOI2007] 追捕盗贼 0 / 0 7
2239 P3185  [HNOI2007] 分裂游戏 0 / 0 6
2240 P3186  [HNOI2007] 所罗门的咒语 0 / 0 7
2241 P3187  [HNOI2007] 最小矩形覆盖 0 / 0 6
2242 P3188  [HNOI2007] 梦幻岛宝珠 0 / 0 6
2243 P3189  [HNOI2007] 海盗分宝 0 / 0 (None)
2244 P3190  [HNOI2007] 神奇游乐园 0 / 0 7
2245 P3191  [HNOI2007] 紧急疏散EVACUATE 0 / 0 6
2246 P3192  [HNOI2007] 胜负一子 0 / 0 7
2511 P3451  [POI2007] ATR-Tourist Attractions 0 / 0 6
2512 P3452  [POI2007] BIU-Offices 2 / 12 5
2513 P3453  [POI2007] DRZ-Trees 0 / 0 6
2514 P3454  [POI2007] OSI-Axes of Symmetry 0 / 0 6
2515 P3455  [POI2007] ZAP-Queries 1 / 1 5
2516 P3456  [POI2007] GRZ-Ridges and Valleys 0 / 0 4
2517 P3457  [POI2007] POW-The Flood 0 / 0 6
2518 P3458  [POI2007] SKA-Rock Garden 0 / 0 6
2519 P3459  [POI2007] MEG-Megalopolis 0 / 0 5
2520 P3460  [POI2007] TET-Tetris Attack 0 / 0 6
2521 P3461  [POI2007] KOL-Railway 0 / 0 (None)
2522 P3462  [POI2007] ODW-Weights 0 / 0 6
2523 P3463  [POI2007] EGZ-Driving Exam 0 / 0 5

Categories

Lucky

Pick a problem randomly based on the current filter.