| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 9660 | P5547 [BJ United Round #3] 三色树 | 0 / 0 | 8 | |
| 9659 | P5548 [BJ United Round #3] 押韵 | 0 / 0 | 9 | |
| 9661 | P5549 [BJ United Round #3] 观察星象 | 0 / 0 | 8 | |
| 10354 | P6224 [BJWC2014] 数据 | 0 / 0 | 8 | |
| 10786 | P6640 [BJOI2020] 封印 | 0 / 0 | 8 | |
| 11101 | P6839 [BJOI2016] 打字机 | 0 / 0 | 9 | |
| 11718 | P7546 [BJWC2014] 珠链 | 0 / 0 | 8 | |
| 11720 | P7547 [BJWC2017] 太空飞船 | 0 / 0 | 7 | |
| 11735 | P7548 [BJWC2017] 星际穿越 | 0 / 0 | (None) | |
| 11737 | P7549 [BJWC2017] 神秘物质 | 0 / 0 | 7 | |
| 15200 | P10474 [ICPC-Beijing 2011] Matrix 矩阵哈希 | 0 / 0 | 6 | |
| 13143 | P12049 KMN の培养皿 | 0 / 0 | 9 |