| P6492 | P6492 [COCI 2010/2011 #6] STEP |
| P6503 | P6503 [COCI 2010/2011 #3] DIFERENCIJA |
| P6510 | P6510 奶牛排队 |
| P6521 | P6521 [CEOI 2010] pin (day2) |
| P6543 | P6543 [CEOI 2014] 007 |
| P6544 | P6544 [CEOI 2014] Cake |
| P6545 | P6545 [CEOI 2014] The Wall |
| P6551 | P6551 [COCI 2010/2011 #2] CRNI |
| P6554 | P6554 Promises I Can't Keep |
| P6560 | P6560 [SBCOI2020] 时光的流逝 |
| P6563 | P6563 [SBCOI2020] 一直在你身旁 |
| P6569 | P6569 [NOI Online #3 提高组] 魔法值 |
| P6570 | P6570 [NOI Online #3 提高组] 优秀子序列 |
| P6577 | P6577 【模板】二分图最大权完美匹配 |
| P6583 | P6583 回首过去 |
| P6584 | P6584 重拳出击 |
| P6585 | P6585 中子衰变 |
| P6587 | P6587 超超的序列 加强 |
| P6594 | P6594 [YsOI2020] 换寝室 |
| P6597 | P6597 烯烃计数 |
| P6598 | P6598 烷烃计数 |
| P6608 | P6608 [Code+#7] 神秘序列 |
| P6610 | P6610 [Code+#7] 同余方程 |
| P6612 | P6612 [POI 2012] LIC-Bidding |
| P6619 | P6619 [省选联考 2020 A/B 卷] 冰火战士 |
| P6620 | P6620 [省选联考 2020 A 卷] 组合数问题 |
| P6621 | P6621 [省选联考 2020 A 卷] 魔法商店 |
| P6622 | P6622 [省选联考 2020 A/B 卷] 信号传递 |
| P6623 | P6623 [省选联考 2020 A 卷] 树 |
| P6624 | P6624 [省选联考 2020 A 卷] 作业题 |
| P6627 | P6627 [省选联考 2020 B 卷] 幸运数字 |
| P6629 | P6629 [ZJOI2020] 字符串 |
| P6630 | P6630 [ZJOI2020] 传统艺能 |
| P6631 | P6631 [ZJOI2020] 序列 |
| P6633 | P6633 [ZJOI2020] 抽卡 |
| P6640 | P6640 [BJOI2020] 封印 |
| P6643 | P6643 [CCO 2020] Mountains and Valleys |
| P6646 | P6646 [CCO 2020] Shopping Plans |
| P6649 | P6649 「SWTR-5」Grid |
| P6651 | P6651 「SWTR-5」Chain |
| P6656 | P6656 【模板】Runs |
| P6657 | P6657 【模板】LGV 引理 |
| P6664 | P6664 [清华集训 2016] 温暖会指引我们前行 |
| P6667 | P6667 [清华集训 2016] 如何优雅地求和 |
| P6669 | P6669 [清华集训 2016] 组合数问题 |
| P6672 | P6672 [清华集训 2016] 你的生命已如风中残烛 |
| P6684 | P6684 [BalticOI 2020] 小丑 (Day1) |
| P6687 | P6687 论如何玩转 Excel 表格 |
| P6688 | P6688 可重集 |
| P6689 | P6689 序列 |
| P6693 | P6693 谷歌翻(sheng)译(cao)机 |
| P6707 | P6707 [COCI 2010/2011 #7] UPIT |
| P6709 | P6709 [CCC 2020] Swapping Seats |
| P6717 | P6717 [CCO 2018] Boring Lectures |
| P6722 | P6722 「MCOI-01」Village 村庄 |
| P6735 | P6735 「Wdsr-2」环 |
| P6739 | P6739 [BalticOI 2014] Three Friends (Day1) |
| P6747 | P6747 『MdOI R3』Teleport |
| P6753 | P6753 [BalticOI 2013] Ball Machine (Day1) |
| P6754 | P6754 [BalticOI 2013] Palindrome-Free Numbers (Day1) |
| P6767 | P6767 [BalticOI 2012/2020] 玫瑰 (Day0) |
| P6772 | P6772 [NOI2020] 美食家 |
| P6773 | P6773 [NOI2020] 命运 |
| P6775 | P6775 [NOI2020] 制作菜品 |
| P6776 | P6776 [NOI2020] 超现实树 |
| P6786 | P6786 「SWTR-6」GCD & LCM |
| P6788 | P6788 「EZEC-3」四月樱花 |
| P6791 | P6791 [SNOI2020] 取石子 |
| P6793 | P6793 [SNOI2020] 字符串 |
| P6794 | P6794 [SNOI2020] 水池 |
| P6796 | P6796 「StOI-2」好多表达式 |
| P6800 | P6800 【模板】Chirp Z-Transform |
| P6801 | P6801 [CEOI 2020] 花式围栏 |
| P6806 | P6806 [CEOI 2020] 象棋世界 |
| P6810 | P6810 「MCOI-02」Convex Hull 凸包 |
| P6814 | P6814 [PA 2009] Circular Game |
| P6816 | P6816 [PA 2009] Quasi-template |
| P6822 | P6822 [PA 2012 Finals] Tax |
| P6825 | P6825 「EZEC-4」求和 |
| P6828 | P6828 任意模数 Chirp Z-Transform |
| P6830 | P6830 [IOI 2020] 连接擎天树 |
| P6833 | P6833 [Cnoi2020] 雷雨 |
| P6834 | P6834 [Cnoi2020] 梦原 |
| P6835 | P6835 [Cnoi2020] 线形生物 |
| P6846 | P6846 [CEOI 2019] Amusement Park |
| P6852 | P6852 Mex |
| P6853 | P6853 station |
| P6855 | P6855 「EZEC-4.5」走方格 |
| P6858 | P6858 深海少女与胖头鱼 |
| P6859 | P6859 蝴蝶与花 |
| P6868 | P6868 [COCI 2019/2020 #5] Matching |
| P6870 | P6870 [COCI 2019/2020 #5] Zapina |
| P6877 | P6877 [JOI 2020 Final] 只不过是长的领带 / Just Long Neckties |
| P6878 | P6878 [JOI 2020 Final] JJOOII 2 |
| P6879 | P6879 [JOI 2020 Final] 集邮比赛 3 / Collecting Stamps 3 |
| P6880 | P6880 [JOI 2020 Final] 奥运公交 / Olympic Bus |
| P6881 | P6881 [JOI 2020 Final] 火灾 / Fire |
| P6883 | P6883 [COCI 2016/2017 #3] Kroničan |
| P6885 | P6885 [COCI 2016/2017 #3] Zoltan |
| P6890 | P6890 [CEOI 2006] Link |