| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 362 | AHOI2007A 密码箱 (Password Box) | 10 / 289 | 5 | |
| 316 | CSPJ2021B 插入排序 | 13 / 24 | 2 | |
| 315 | CSPJ2021C 网络连接 | 11 / 11 | 3 | |
| 314 | CSPJ2021D 小熊的果篮 (Bear's Fruit Basket) | 14 / 17 | 3 | |
| 4270 | NOI20032D [NOI2003] 逃学的小孩 | 0 / 6 | 10 | |
| 4239 | NOI20051C [NOI2005] 智慧珠游戏 | 0 / 0 | (None) | |
| 4333 | NOIP2003F [NOIP2003 提高组] 侦探推理 | 0 / 0 | (None) | |
| 4242 | NOIP2004A [NOIP2004 普及组] 不高兴的津津 | 462 / 932 | 2 | |
| 4247 | NOIP2004E [NOIP2004 提高组] 津津的储蓄计划 | 306 / 580 | 3 | |
| 4208 | NOIP2007H [NOIP2007 提高组] 树网的核 | 3 / 3 | 10 | |
| 4221 | NOIP2010F [NOIP2010 提高组] 乌龟棋 | 9 / 14 | 8 | |
| 4414 | NOIP2014D [NOIP2014 普及组] 子矩阵 | 1 / 1 | 10 | |
| 4417 | NOIP2014G [NOIP2014 提高组] 飞扬的小鸟 | 2 / 3 | 10 | |
| 4418 | NOIP2014H [NOIP2014 提高组] 无线网络发射器选址 | 2 / 2 | 10 | |
| 4424 | NOIP2015E [NOIP2015 提高组] 神奇的幻方 | 44 / 58 | 1 | |
| 305 | NOIPS2015E [NOIP2015 提高组] 子串 | 4 / 5 | 10 | |
| 14 | 14 小木棍 | 5 / 48 | 9 | |
| 470 | 470 [Usaco2009 Nov]农场技艺大赛 | 0 / 0 | (None) | |
| 670 | 670 反质数加强版SAPGAP | 0 / 0 | (None) | |
| 636 | P1049 [HAOI2006]数字序列 | 1 / 4 | 10 |
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