| #3701 | NecklaceSichuan Provincial 2015 | |
| #3702 | PartySichuan Provincial 2015 | |
| #3703 | Range QuerySichuan Provincial 2015 | |
| #3704 | TravelSichuan Provincial 2015 | |
| #3705 | Right turnSichuan Provincial 2015 | |
| #3706 | Nearest Neighbor SearchSichuan Provincial 2016 | |
| #3707 | Odd DiscountSichuan Provincial 2016 | |
| #3708 | Eight QueensSichuan Provincial 2016 | |
| #3709 | Longest Common SubsequenceSichuan Provincial 2016 | |
| #3710 | CoinsSichuan Provincial 2016 | |
| #3711 | Floyd-WarshallSichuan Provincial 2016 | |
| #3712 | Road HistorySichuan Provincial 2016 | |
| #3713 | Around the WorldSichuan Provincial 2016 | |
| #3714 | Longest Increasing SubsequenceSichuan Provincial 2016 | |
| #3715 | Matrix TransformationSichuan Provincial 2016 | |
| #3716 | Simple ArithmeticSichuan Provincial 2017 | |
| #3717 | Broken CounterSichuan Provincial 2017 | |
| #3718 | DeterminantSichuan Provincial 2017 | |
| #3719 | Dynamic GraphSichuan Provincial 2017 | |
| #3720 | Longest Increasing SubsequenceSichuan Provincial 2017 | |
| #3721 | Simple AlgebraSichuan Provincial 2017 | |
| #3722 | 2017Sichuan Provincial 2017 | |
| #3723 | RoadsSichuan Provincial 2017 | |
| #3724 | Strange PrimeSichuan Provincial 2017 | |
| #3725 | SkewnessSichuan Provincial 2017 | |
| #3726 | 2017 RevengeSichuan Provincial 2017 | |
| #3727 | Nice TrickSichuan Provincial 2017 | |
| #3728 | 2016Hunan Collegiate Programming Contest 2016 | |
| #3729 | 有向无环图Hunan Collegiate Programming Contest 2016 | |
| #3730 | Three CapitalsHunan Collegiate Programming Contest 2016 | |
| #3731 | TollHunan Collegiate Programming Contest 2016 | |
| #3732 | 最长上升子序列Hunan Collegiate Programming Contest 2016 | |
| #3733 | 地铁Hunan Collegiate Programming Contest 2016 | |
| #3734 | ParenthesisHunan Collegiate Programming Contest 2016 | |
| #3735 | ReverseHunan Collegiate Programming Contest 2016 | |
| #3736 | Tree IntersectionHunan Collegiate Programming Contest 2016 | |
| #3737 | 三角形和矩形Hunan Collegiate Programming Contest 2016 | |
| #3738 | 盖房子Hunan Collegiate Programming Contest 2016 | |
| #3739 | 字符画Hunan Collegiate Programming Contest 2018 | |
| #3740 | 2018Hunan Collegiate Programming Contest 2018 | |
| #3741 | 时间旅行Hunan Collegiate Programming Contest 2018 | |
| #3742 | 卖萌表情Hunan Collegiate Programming Contest 2018 | |
| #3743 | GridHunan Collegiate Programming Contest 2018 | |
| #3744 | Fixed PointHunan Collegiate Programming Contest 2018 | |
| #3745 | 排列Hunan Collegiate Programming Contest 2018 | |
| #3746 | 千万别用树套树Hunan Collegiate Programming Contest 2018 | |
| #3747 | Steiner TreeHunan Collegiate Programming Contest 2018 | |
| #3748 | 买一送一Hunan Collegiate Programming Contest 2018 | |
| #3749 | Use FFTHunan Collegiate Programming Contest 2018 | |
| #3750 | 全 1 子矩阵Hunan Collegiate Programming Contest 2019 | |
| #3751 | 组合数Hunan Collegiate Programming Contest 2019 | |
| #3752 | Distinct SubstringsHunan Collegiate Programming Contest 2019 | |
| #3753 | Modulo NineHunan Collegiate Programming Contest 2019 | |
| #3754 | NumbersHunan Collegiate Programming Contest 2019 | |
| #3755 | 4 ButtonsHunan Collegiate Programming Contest 2019 | |
| #3756 | 字典序Hunan Collegiate Programming Contest 2019 | |
| #3757 | 有向图Hunan Collegiate Programming Contest 2019 | |
| #3758 | 2019Hunan Collegiate Programming Contest 2019 | |
| #3759 | Parity of Tuples (Easy)Hunan Collegiate Programming Contest 2019 | |
| #3760 | 双向链表练习题Hunan Collegiate Programming Contest 2019 | |
| #3761 | 2020Hunan Collegiate Programming Contest 2020 | |
| #3762 | 2020 vs 2018Hunan Collegiate Programming Contest 2020 | |
| #3763 | Absolute Difference EquationHunan Collegiate Programming Contest 2020 | |
| #3764 | String CommutativityHunan Collegiate Programming Contest 2020 | |
| #3765 | Make Rounddog *Very* HappyHunan Collegiate Programming Contest 2020 | |
| #3766 | 抄板子Hunan Collegiate Programming Contest 2020 | |
| #3767 | 奇矩阵Hunan Collegiate Programming Contest 2020 | |
| #3768 | 矩形并Hunan Collegiate Programming Contest 2020 | |
| #3769 | 共线点Hunan Collegiate Programming Contest 2020 | |
| #3770 | Minimum Spanning TreeHunan Collegiate Programming Contest 2020 | |
| #3771 | Spanning TreesHunan Collegiate Programming Contest 2020 | |
| #3772 | 点到圆弧的距离Hunan Collegiate Programming Contest 2014 | |
| #3773 | 积木玩具Hunan Collegiate Programming Contest 2014 | |
| #3774 | 酷酷的单词Hunan Collegiate Programming Contest 2014 | |
| #3775 | Double Shortest PathsHunan Collegiate Programming Contest 2014 | |
| #3776 | 超大型 LED 显示屏Hunan Collegiate Programming Contest 2014 | |
| #3777 | 地图的四着色Hunan Collegiate Programming Contest 2014 | |
| #3778 | Giving directions to the treeHunan Collegiate Programming Contest 2014 | |
| #3779 | Happy RobotHunan Collegiate Programming Contest 2014 | |
| #3780 | 残缺的棋盘Hunan Collegiate Programming Contest 2014 | |
| #3781 | Just another pachinko-like machineHunan Collegiate Programming Contest 2014 | |
| #3782 | Kick the ball!Hunan Collegiate Programming Contest 2014 | |
| #3783 | 近似回文词Hunan Collegiate Programming Contest 2013 | |
| #3784 | 一行盒子Hunan Collegiate Programming Contest 2013 | |
| #3785 | 字符识别？Hunan Collegiate Programming Contest 2013 | |
| #3786 | Damaging Your Spreadsheet (Spreadsheet Tracking II)Hunan Collegiate Programming Contest 2013 | |
| #3787 | 割耳法Hunan Collegiate Programming Contest 2013 | |
| #3788 | Funny Car RacingHunan Collegiate Programming Contest 2013 | |
| #3789 | 好老师Hunan Collegiate Programming Contest 2013 | |
| #3790 | 高桥和低桥Hunan Collegiate Programming Contest 2013 | |
| #3791 | Interesting CalculatorHunan Collegiate Programming Contest 2013 | |
| #3792 | 搞笑版费马大定理Hunan Collegiate Programming Contest 2013 | |
| #3793 | Killer PuzzleHunan Collegiate Programming Contest 2013 | |
| #3794 | Loop of ChocolateYokohama Regional 2021 | |
| #3795 | Lottery Fun TimeYokohama Regional 2021 | |
| #3796 | Reversible CompressionYokohama Regional 2021 | |
| #3797 | Wireless Communication NetworkYokohama Regional 2021 | |
| #3798 | Planning Railroad DiscontinuationYokohama Regional 2021 | |
| #3799 | It's Surely ComplexYokohama Regional 2021 | |
| #3800 | Genealogy of PuppetsYokohama Regional 2021 | |