| #1701 | Exercise RouteUSACO 2019 January Platinum | |
| #1702 | Train Tracking 2USACO 2019 January Platinum | |
| #1751 | Automatic AccountantUKIEPC 2019 | |
| #1752 | Ballpark EstimateUKIEPC 2019 | |
| #1753 | Crooked DealingUKIEPC 2019 | |
| #1754 | Dome ConstructionUKIEPC 2019 | |
| #1755 | Estate AgentUKIEPC 2019 | |
| #1756 | Feeding SealsUKIEPC 2019 | |
| #1757 | Grand Central StationUKIEPC 2019 | |
| #1758 | Hat StandUKIEPC 2019 | |
| #1759 | Integral PyramidUKIEPC 2019 | |
| #1760 | Jammed GymUKIEPC 2019 | |
| #1761 | Knocked InkUKIEPC 2019 | |
| #1762 | Low Effort LeagueUKIEPC 2019 | |
| #1763 | Mosaic MansionUKIEPC 2019 | |
| #1768 | 廊桥分配CSP-S 2021 | |
| #1769 | 括号序列CSP-S 2021 | |
| #1770 | 回文CSP-S 2021 | |
| #1771 | 交通规划CSP-S 2021 | |
| #1772 | Antenna AnalysisNCPC 2021 | |
| #1773 | Breaking BarsNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1774 | Customs ControlsNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1775 | Deceptive DirectionsNCPC 2021 | |
| #1776 | Eavesdropper EvasionNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1777 | Fortune From FollyNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1778 | Grazed GrainsNCPC 2021 | |
| #1779 | Hiring HelpNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1780 | Intact IntervalsNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1781 | Joint Jog JamNCPC 2021 | |
| #1782 | Knot KnowledgeNCPC 2021 | |
| #1783 | Locust LocusNCPC 2021 | |
| #1784 | Marvelous MarathonNCPC 2021Petrozavodsk Winter 2022 Day 4 | |
| #1785 | 轻重边NOI 2021 | |
| #1786 | 路径交点NOI 2021 | |
| #1787 | 庆典NOI 2021 | |
| #1788 | 量子通信NOI 2021 | |
| #1789 | 密码箱NOI 2021 | |
| #1790 | 机器人游戏NOI 2021 | |
| #1791 | Beer BarrelsCTU Open Contest 2019 | |
| #1792 | Beer BillCTU Open Contest 2019 | |
| #1793 | Beer CoastersCTU Open Contest 2019 | |
| #1794 | Beer Flood SystemCTU Open Contest 2019 | |
| #1795 | Beer Can GameCTU Open Contest 2019 | |
| #1796 | Beer MarathonCTU Open Contest 2019 | |
| #1797 | Beer MugsCTU Open Contest 2019 | |
| #1798 | Screamers in the StormCTU Open Contest 2019 | |
| #1799 | SixpackCTU Open Contest 2019 | |
| #1800 | Beer VisionCTU Open Contest 2019 | |