| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 301 | P28P4667 「一本通 1.4 例 1」电路维修[BalticOI 2011 Day1] Switch the Lamp On 电路维修 | 2 / 6 | 10 | |
| 309 | P35P4305 [JLOI2011] 不重复数字 | 7 / 93 | 9 | |
| 83 | P83 「一本通 3.2 练习 7」道路和航线 | 0 / 0 | (None) | |
| 113 | P113 「一本通 3.7 练习 5」相框 | 0 / 0 | (None) | |
| 143 | P143 「一本通 4.5 练习 3」染色 | 0 / 0 | (None) | |
| 179 | P179 「一本通 5.5 例 3」修剪草坪 | 0 / 0 | (None) | |
| 216 | P216 「一本通 6.4 例 6」计算器 | 0 / 0 | (None) | |
| 270 | P1311 [NOIP2011 提高组] 选择客栈 | 0 / 0 | (None) | |
| 326 | P2486 [SDOI2011] 染色 | 0 / 0 | (None) | |
| 413 | P3275 [SCOI2011] 糖果 | 1 / 4 | 10 | |
| 411 | P4568 [JLOI2011] 飞行路线 | 11 / 59 | 8 | |
| 355 | P4667 [BalticOI 2011 Day1] Switch the Lamp On 电路维修 | 10 / 88 | 9 | 
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