ID 题目 显示标签 隐藏标签 AC / 尝试 难度
7411 P8364   [COI 2009] IZBORI 0 / 0 8
8207 P9112   [IOI 2009] Archery 0 / 0 9
8208 P9113   [IOI 2009] Hiring 0 / 0 8
8209 P9114   [IOI 2009] POI 0 / 0 3
8211 P9115   [IOI 2009] Garage 0 / 0 5
8212 P9116   [IOI 2009] Mecho 0 / 0 7
10070 P10602   [CEOI 2009] Harbingers 0 / 0 8
11098 P11546   [BalticOI 2009] 糖果机器 (Day1) 0 / 0 (无)
11099 P11547   [BalticOI 2009] 地铁信号故障(暂无SPJ) (Day1) 0 / 0 (无)
11122 P11548   [BalticOI 2009] 矩形 (Day2) 0 / 0 8
11124 P11549   [BalticOI 2009] 三角形划分 (Day2) 0 / 0 (无)
11125 P11550   [BalticOI 2009] 纪念碑 (Day2) 0 / 0 (无)
12923 P13085   [SCOI2009] windy 数(加强版) 0 / 0 7
13238 P13428   [GCJ 2009 Qualification] Alien Language 0 / 0 3
13239 P13429   [GCJ 2009 Qualification] Watersheds 0 / 0 3
13240 P13430   [GCJ 2009 Qualification] Welcome to Code Jam 0 / 0 5
13241 P13431   [GCJ 2009 #1A] Multi-base happiness 0 / 0 6
13242 P13432   [GCJ 2009 #1A] Crossing the Road 0 / 0 6
13243 P13433   [GCJ 2009 #1A] Collecting Cards 0 / 0 7
13244 P13434   [GCJ 2009 #1B] Decision Tree 0 / 0 6

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