ID Problem Show tags Hide tags AC / Tried Difficulty
3 P1003  [NOIP2011 提高组] 铺地毯 7 / 7 2
293 P1295  [TJOI2011] 书架 0 / 0 6
305 P1307  [NOIP2011 普及组] 数字反转 23 / 112 1
306 P1308  [NOIP2011 普及组] 统计单词数 35 / 45 2
307 P1309  [NOIP2011 普及组] 瑞士轮 1 / 7 3
308 P1310  [NOIP2011 普及组] 表达式的值 0 / 0 4
309 P1311  [NOIP2011 提高组] 选择客栈 3 / 4 3
310 P1312  [NOIP2011 提高组] Mayan 游戏 0 / 1 5
311 P1313  [NOIP2011 提高组] 计算系数 2 / 3 3
312 P1314  [NOIP2011 提高组] 聪明的质监员 3 / 5 4
313 P1315  [NOIP2011 提高组] 观光公交 1 / 2 5
373 P1377  [TJOI2011] 树的序 0 / 0 5
412 P1418  [TJOI2011] 构造矩阵 0 / 0 5
532 P1539  [TJOI2011] 01矩阵 0 / 0 5
699 P1732  [TJOI2011] 序列 0 / 0 2
783 P1825  [USACO11OPEN] Corn Maze S 4 / 17 3
922 P1971  [NOI2011] 兔兔与蛋蛋游戏 1 / 1 7
924 P1973  [NOI2011] NOI 嘉年华 0 / 0 6
945 P1995  [NOI2011] 智能车比赛 0 / 0 6
968 P2020  [NOI2011] 兔农 0 / 0 7
999 P2052  [NOI2011] 道路修建 2 / 2 3
1011 P2065  [TJOI2011] 卡片 0 / 0 5
1112 P2176  [USACO11DEC] RoadBlock S / [USACO14FEB] Roadblock G/S 2 / 2 4
5050 P2291  [PA2011] Prime prime power 质数的质数次方 0 / 0 5
1320 P2344  [USACO11FEB] Generic Cow Protests G 0 / 0 5
1418 P2414  [NOI2011] 阿狸的打字机 1 / 1 6
1502 P2484  [SDOI2011] 打地鼠 0 / 0 5
1503 P2485  [SDOI2011] 计算器 0 / 0 5
1504 P2486  [SDOI2011] 染色 0 / 0 6
1505 P2487  [SDOI2011] 拦截导弹 2 / 5 6
1506 P2488  [SDOI2011] 工作安排 0 / 0 6
1507 P2489  [SDOI2011] 迷宫探险 0 / 0 6
1508 P2490  [SDOI2011] 黑白棋 0 / 0 6
1509 P2491  [SDOI2011] 消防 2 / 2 5
1510 P2492  [SDOI2011] 火星移民 0 / 0 7
1511 P2493  [SDOI2011] 贪食蛇 0 / 0 7
1512 P2494  [SDOI2011] 保密 0 / 0 7
1513 P2495  [SDOI2011] 消耗战 2 / 4 6
1538 P2519  [HAOI2011] problem a 0 / 0 5
1539 P2520  [HAOI2011] 向量 0 / 0 5
1540 P2521  [HAOI2011] 防线修建 0 / 0 6
1541 P2522  [HAOI2011] Problem b 1 / 1 5
1542 P2523  [HAOI2011] Problem c 1 / 1 6
1651 P2627  [USACO11OPEN] Mowing the Lawn G 2 / 3 5
2051 P3006  [USACO11JAN] Bottleneck G 0 / 0 6
2052 P3007  [USACO11JAN] The Continental Cowngress G 0 / 0 5
2053 P3008  [USACO11JAN] Roads and Planes G 0 / 0 5
2054 P3009  [USACO11JAN] Profits S 0 / 0 2
2055 P3010  [USACO11JAN] Dividing the Gold S 0 / 0 4
2056 P3011  [USACO11JAN] Traffic Lights S 0 / 0 6
2057 P3012  [USACO11FEB] Cowlphabet G 0 / 0 4
8565 P3013  [USACO11FEB] The Lost Cows G 0 / 0 5
2058 P3014  [USACO11FEB] Cow Line S 0 / 0 4
2059 P3015  [USACO11FEB] Best Parenthesis S 0 / 0 3
2060 P3016  [USACO11FEB] The Triangle S 0 / 0 3
2061 P3017  [USACO11MAR] Brownie Slicing G 0 / 0 5
2062 P3018  [USACO11MAR] Tree Decoration G 0 / 0 4
2063 P3019  [USACO11MAR] Meeting Place S 0 / 0 3
2064 P3020  [USACO11MAR] Package Delivery S 0 / 0 3
2065 P3021  [USACO11MAR] Bovine Bridge Battle S 0 / 0 3
2066 P3022  [USACO11OPEN] Odd degrees G 0 / 0 5
2067 P3023  [USACO11OPEN] Soldering G 0 / 0 6
2068 P3024  [USACO11OPEN] Cow Checkers S 0 / 0 5
2069 P3025  [USACO11OPEN] Forgotten Password S 0 / 0 5
2070 P3026  [USACO11OPEN] Learning Languages S 0 / 0 5
2073 P3029  [USACO11NOV] Cow Lineup S 1 / 1 3
2074 P3030  [USACO11NOV] Tile Exchanging S 0 / 0 3
2075 P3031  [USACO11NOV] Above the Median G 0 / 0 5
2076 P3032  [USACO11NOV] Binary Sudoku G 0 / 0 5
2077 P3033  [USACO11NOV] Cow Steeplechase G 4 / 17 5
2078 P3034  [USACO11DEC] Cow Photography G/S 0 / 0 5
2079 P3035  [USACO11DEC] Umbrellas for Cows S 0 / 0 5
2081 P3037  [USACO11DEC] Simplifying the Farm G 0 / 0 6
2082 P3038  [USACO11DEC] Grass Planting G 0 / 0 5
2211 P3157  [CQOI2011] 动态逆序对 1 / 2 6
2212 P3158  [CQOI2011] 放棋子 0 / 0 6
2265 P3211  [HNOI2011] XOR和路径 0 / 0 6
2266 P3212  [HNOI2011] 任务调度 0 / 0 6
2267 P3213  [HNOI2011] 勾股定理 0 / 0 6
2268 P3214  [HNOI2011] 卡农 0 / 0 6
2269 P3215  [HNOI2011] 括号修复 / [JSOI2011] 括号序列 0 / 0 6
2270 P3216  [HNOI2011] 数学作业 0 / 0 5
2271 P3217  [HNOI2011] 数矩形 0 / 0 6
2272 P3218  [HNOI2011] 赛车游戏 0 / 0 6
2326 P3272  [SCOI2011] 地板 0 / 0 6
2327 P3273  [SCOI2011] 棘手的操作 0 / 0 6
2328 P3274  [SCOI2011] 植物大战僵尸 0 / 0 7
2329 P3275  [SCOI2011] 糖果 0 / 0 5
2330 P3276  [SCOI2011] 镜像拆分 0 / 0 (None)
2331 P3277  [SCOI2011] 飞镖 0 / 0 6
2383 P3329  [ZJOI2011] 最小割 0 / 0 6
2384 P3330  [ZJOI2011] 看电影 0 / 0 6
2385 P3331  [ZJOI2011] 礼物 0 / 0 5
2572 P3513  [POI2011] KON-Conspiracy 2 / 3 6
2573 P3514  [POI2011] LIZ-Lollipop 2 / 2 5
2574 P3515  [POI2011] Lightning Conductor 0 / 1 6
2575 P3516  [POI2011] PRZ-Shift 0 / 0 6
2576 P3517  [POI2011] WYK-Plot 0 / 0 6
2577 P3518  [POI2011] SEJ-Strongbox 0 / 0 5
2578 P3519  [POI2011] ROZ-Difference 0 / 4 5

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