ID Problem Show tags Hide tags AC / Tried Difficulty
3 P1003  [NOIP2011 提高组] 铺地毯 4 / 6 2
293 P1295  [TJOI2011] 书架 1 / 3 6
305 P1307  [NOIP2011 普及组] 数字反转 2 / 2 1
306 P1308  [NOIP2011 普及组] 统计单词数 0 / 1 2
307 P1309  [NOIP2011 普及组] 瑞士轮 0 / 0 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 0 / 0 3
310 P1312  [NOIP2011 提高组] Mayan 游戏 0 / 0 5
311 P1313  [NOIP2011 提高组] 计算系数 0 / 0 3
312 P1314  [NOIP2011 提高组] 聪明的质监员 4 / 6 4
313 P1315  [NOIP2011 提高组] 观光公交 0 / 0 5
373 P1377  [TJOI2011] 树的序 0 / 0 5
411 P1418  [TJOI2011] 构造矩阵 0 / 0 5
531 P1539  [TJOI2011] 01矩阵 0 / 0 5
709 P1732  [TJOI2011] 序列 0 / 0 2
793 P1825  [USACO11OPEN] Corn Maze S 1 / 1 3
840 P1873  [COCI 2011/2012 #5] EKO / 砍树 12 / 37 3
932 P1971  [NOI2011] 兔兔与蛋蛋游戏 0 / 0 7
934 P1973  [NOI2011] NOI 嘉年华 0 / 0 6
955 P1995  [NOI2011] 智能车比赛 0 / 0 6
978 P2020  [NOI2011] 兔农 0 / 0 7
1009 P2052  [NOI2011] 道路修建 7 / 34 3
1021 P2065  [TJOI2011] 卡片 0 / 0 5
1122 P2176  [USACO11DEC] RoadBlock S / [USACO14FEB] Roadblock G/S 1 / 1 4
5065 P2291  [PA2011] Prime prime power 质数的质数次方 0 / 0 5
1330 P2344  [USACO11FEB] Generic Cow Protests G 2 / 5 5
1428 P2414  [NOI2011] 阿狸的打字机 0 / 0 6
1512 P2484  [SDOI2011] 打地鼠 0 / 0 5
1513 P2485  [SDOI2011] 计算器 0 / 0 5
1514 P2486  [SDOI2011] 染色 3 / 11 6
1515 P2487  [SDOI2011] 拦截导弹 0 / 0 6
1516 P2488  [SDOI2011] 工作安排 0 / 0 6
1517 P2489  [SDOI2011] 迷宫探险 0 / 0 6
1518 P2490  [SDOI2011] 黑白棋 0 / 0 6
1519 P2491  [SDOI2011] 消防 0 / 0 5
1520 P2492  [SDOI2011] 火星移民 0 / 0 7
1521 P2493  [SDOI2011] 贪食蛇 0 / 0 7
1522 P2494  [SDOI2011] 保密 0 / 0 7
1523 P2495  [SDOI2011] 消耗战 0 / 0 6
1548 P2519  [HAOI2011] problem a 0 / 0 5
1549 P2520  [HAOI2011] 向量 0 / 0 5
1550 P2521  [HAOI2011] 防线修建 0 / 0 6
1551 P2522  [HAOI2011] Problem b 0 / 0 5
1552 P2523  [HAOI2011] Problem c 0 / 0 6
1661 P2627  [USACO11OPEN] Mowing the Lawn G 0 / 0 5
2061 P3006  [USACO11JAN] Bottleneck G 0 / 0 6
2062 P3007  [USACO11JAN] The Continental Cowngress G 0 / 0 5
2063 P3008  [USACO11JAN] Roads and Planes G 0 / 0 5
2064 P3009  [USACO11JAN] Profits S 0 / 0 2
2065 P3010  [USACO11JAN] Dividing the Gold S 0 / 0 4
2066 P3011  [USACO11JAN] Traffic Lights S 0 / 0 6
2067 P3012  [USACO11FEB] Cowlphabet G 0 / 0 4
8673 P3013  [USACO11FEB] The Lost Cows G 0 / 0 5
2068 P3014  [USACO11FEB] Cow Line S 0 / 0 4
2069 P3015  [USACO11FEB] Best Parenthesis S 0 / 0 3
2070 P3016  [USACO11FEB] The Triangle S 0 / 0 3
2071 P3017  [USACO11MAR] Brownie Slicing G 1 / 1 5
2072 P3018  [USACO11MAR] Tree Decoration G 0 / 0 4
2073 P3019  [USACO11MAR] Meeting Place S 0 / 0 3
2074 P3020  [USACO11MAR] Package Delivery S 0 / 0 3
2075 P3021  [USACO11MAR] Bovine Bridge Battle S 0 / 0 3
2076 P3022  [USACO11OPEN] Odd degrees G 0 / 0 5
2077 P3023  [USACO11OPEN] Soldering G 0 / 0 6
2078 P3024  [USACO11OPEN] Cow Checkers S 0 / 0 5
2079 P3025  [USACO11OPEN] Forgotten Password S 0 / 0 5
2080 P3026  [USACO11OPEN] Learning Languages S 0 / 0 5
2083 P3029  [USACO11NOV] Cow Lineup S 0 / 0 3
2084 P3030  [USACO11NOV] Tile Exchanging S 0 / 0 3
2085 P3031  [USACO11NOV] Above the Median G 0 / 0 5
2086 P3032  [USACO11NOV] Binary Sudoku G 0 / 0 5
2087 P3033  [USACO11NOV] Cow Steeplechase G 0 / 0 5
2088 P3034  [USACO11DEC] Cow Photography G/S 0 / 0 5
2089 P3035  [USACO11DEC] Umbrellas for Cows S 0 / 0 5
2091 P3037  [USACO11DEC] Simplifying the Farm G 0 / 0 6
2092 P3038  [USACO11DEC] Grass Planting G 0 / 0 5
2221 P3157  [CQOI2011] 动态逆序对 1 / 2 6
2222 P3158  [CQOI2011] 放棋子 0 / 0 6
2275 P3211  [HNOI2011] XOR和路径 0 / 0 6
2276 P3212  [HNOI2011] 任务调度 0 / 0 6
2277 P3213  [HNOI2011] 勾股定理 0 / 0 6
2278 P3214  [HNOI2011] 卡农 0 / 0 6
2279 P3215  [HNOI2011] 括号修复 / [JSOI2011] 括号序列 0 / 0 6
2280 P3216  [HNOI2011] 数学作业 3 / 19 5
2281 P3217  [HNOI2011] 数矩形 0 / 0 6
2282 P3218  [HNOI2011] 赛车游戏 0 / 0 6
2336 P3272  [SCOI2011] 地板 0 / 0 6
2337 P3273  [SCOI2011] 棘手的操作 0 / 0 6
2338 P3274  [SCOI2011] 植物大战僵尸 0 / 0 7
2339 P3275  [SCOI2011] 糖果 0 / 0 5
2340 P3276  [SCOI2011] 镜像拆分 0 / 0 (None)
2341 P3277  [SCOI2011] 飞镖 0 / 0 6
2393 P3329  [ZJOI2011] 最小割 0 / 0 6
2394 P3330  [ZJOI2011] 看电影 0 / 0 6
2395 P3331  [ZJOI2011] 礼物 0 / 0 5
2582 P3513  [POI2011] KON-Conspiracy 0 / 0 6
2583 P3514  [POI2011] LIZ-Lollipop 0 / 0 5
2584 P3515  [POI2011] Lightning Conductor 0 / 0 6
2585 P3516  [POI2011] PRZ-Shift 0 / 0 6
2586 P3517  [POI2011] WYK-Plot 0 / 0 6
2587 P3518  [POI2011] SEJ-Strongbox 0 / 0 5

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