| #118 | Road ServiceJOISC 2018 Day 2Output Only | |
| #188 | 远古计算机WC 2019Output Only | |
| #293 | 名为 Threes 的游戏SDOI 2014 Round 2 Day 1Output Only | |
| #327 | Prime TreeeJOI 2018 Day 2Output Only | |
| #2112 | 未来程序WC 2015Output Only | |
| #2673 | Broken lineIOI 2019 Day 2Output Only | |
| #2756 | NowruzIOI 2017 Day 1Output Only | |
| #2981 | 双人猜数游戏BJOI 2018 Day 2Output Only | |
| #3092 | AerobaticsJOISC 2021 Day 1Output Only | |
| #3298 | 旷野大计算NOI 2016 Day 2Output Only | |
| #3562 | Legendary Dango MakerJOISC 2020 Day 4Output Only | |
| #4449 | 非确定机WC 2014Output Only | |
| #4473 | 无处安放CTS 2019 Day 1Output Only | |
| #4531 | 斗地主清华集训 2015 Day 2CTT 2015 Day 2Output Only | |
| #4534 | 新式计算机清华集训 2015 Day 3CTT 2015 Day 3Output Only | |
| #4553 | 工厂清华集训 2016 Day 2CTT 2016 Day 2Output Only | |
| #4698 | Colored TilesJOI Open Contest 2015Output Only | |
| #4713 | DNAinfO(1) Cup 2017 National RoundOutput Only | |
| #4905 | 交朋友2021 集训队互测 Round 6Output Only | |
| #4949 | 组合数问题CTSC 2018CTS 2018Output Only | |
| #5172 | 序程来未2022 集训队互测 Round 14Output Only | |
| #5298 | 小 Q 运动季WC 2013Output Only | |
| #5536 | RouterCEOI 2016 Day 2Output Only | |
| #5698 | NOIP 十合一CTSC 2016 Day 1CTS 2016 Day 1Output Only | |
| #5701 | 科学考察队CTSC 2016 Day 2CTS 2016 Day 2Output Only | |
| #6233 | 消除游戏NOI 2014 Day 1Output Only | |
| #6689 | $N^2$ 数码游戏CTSC 2009 Day 2Output Only | |
| #6779 | 小 Q 的修炼NOI 2013 Day 1Output Only | |
| #6972 | 黑客技术ZJOI 2015 Day 2Output Only | |
| #7116 | Do You Like This Problem?Output Only | |
| #8735 | 道路监控CTSC 2011 Day 1Output Only | |
| #8738 | 杀菌计划CTSC 2011 Day 2Output Only | |