| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 334 | HNOI2016C 树 | 0 / 0 | (None) | |
| 331 | HNOI2017A 单旋 | 0 / 0 | (None) | |
| 328 | HNOI2017B 影魔 | 0 / 0 | (None) | |
| 4274 | NOI20021A [NOI2002] 银河英雄传说 | 2 / 2 | 4 | |
| 4223 | NOI20091B [NOI2009] 诗人小G | 0 / 0 | (None) | |
| 4250 | NOIP2004G [NOIP2004 提高组] 合唱队形 | 19 / 31 | 3 | |
| 4220 | NOIP2010E [NOIP2010 提高组] 机器翻译 | 8 / 9 | 9 | |
| 4230 | NOIP2010G [NOIP2010 提高组] 关押罪犯 | 9 / 9 | 9 | |
| 4398 | NOIP2013B [NOIP2013 普及组] 表达式求值 | 17 / 29 | 4 | |
| 4402 | NOIP2013F [NOIP2013 提高组] 火柴排队 | 1 / 1 | 10 | |
| 4403 | NOIP2013G [NOIP2013 提高组] 货车运输 | 2 / 12 | 10 | |
| 4425 | NOIP2015F [NOIP2015 提高组] 信息传递 | 3 / 4 | 10 | |
| 4188 | NOIP2016fs1B [NOIP2016 提高组] 天天爱跑步 | 1 / 1 | 10 | |
| 389 | NOIPS2016E [NOIP2016 提高组] 蚯蚓 | 6 / 13 | 8 | |
| 402 | NOIPS2017D [NOIP2017 提高组] 奶酪 | 6 / 10 | 9 | |
| 214 | 214 [CEOI2004] 锯木厂选址 | 0 / 0 | (None) | |
| 227 | 227 [ZJOI2010]基站选址 | 1 / 1 | 10 | |
| 229 | 229 [HNOI2008]玩具装箱 | 1 / 1 | 10 | |
| 246 | 246 [NOI2001] 食物链 | 4 / 23 | 8 | |
| 422 | 422 [HNOI2010] 弹飞绵羊 | 2 / 2 | 10 |
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