| 1383D | Rearrange | | | 2800 | 836 |
| 1369D | TediousLee | | | 1900 | 9.3k |
| 1368E | Ski Accidents | | | 2500 | 2.4k |
| 1367E | Necklace Assembly | | | 1900 | 5.9k |
| 1365D | Solve The Maze | | | 1700 | 21.3k |
| 1364D | Ehab's Last Corollary | | | 2100 | 5.1k |
| 1361A | Johnny and Contribution | | | 1700 | 8.9k |
| 1348F | Phoenix and Memory | | | 2600 | 968 |
| 1346D | Constructing the Dungeon | | | 1600 | 550 |
| 1343E | Weights Distributing | | | 2100 | 5.8k |
| 1340B | Nastya and Scoreboard | | | 1700 | 8.4k |
| 1335F | Robots on a Grid | | | 2200 | 2.5k |
| 1334D | Minimum Euler Cycle | | | 1800 | 7.8k |
| 1334E | Divisor Paths | | | 2200 | 3.2k |
| 1333D | Challenges in school №41 | | | 2100 | 4.2k |
| 1328D | Carousel | | | 1800 | 14.7k |
| 1327B | Princesses and Princes | | | 1200 | 19.7k |
| 1325F | Ehab's Last Theorem | | | 2500 | 2.4k |
| 1307D | Cow and Fields | | | 1900 | 7.4k |
| 1304D | Shortest and Longest LIS | | | 1800 | 6.8k |
| 1296E1 | String Coloring (easy version) | | | 1800 | 8.3k |
| 1292D | Chaotic V. | | | 2700 | 1.1k |
| 1286B | Numbers on Tree | | | 1800 | 5.7k |
| 1283D | Christmas Trees | | | 1800 | 10k |
| 1280C | Jeremy Bearimy | | | 2000 | 3.1k |
| 1266D | Decreasing Debts | | | 2000 | 3.9k |
| 1253D | Harmonious Graph | | | 1700 | 10.4k |
| 1250N | Wires | | | 2000 | 1.8k |
| 1245D | Shichikuji and Power Grid | | | 1900 | 10.1k |
| 1220E | Tourism | | | 2200 | 3.1k |
| 1213F | Unstable String Sort | | | 2100 | 3.1k |
| 1204C | Anna, Svyatoslav and Maps | | | 1700 | 7.5k |
| 1198C | Matching vs Independent Set | | | 2000 | 4.1k |
| 1186F | Vus the Cossack and a Graph | | | 2400 | 1.2k |
| 1176D | Recover it! | | | 1800 | 5.9k |
| 1158C | Permutation recovery | | | 2100 | 2.3k |
| 1156G | Optimizer | | | 2700 | 171 |
| 1149D | Abandoning Roads | | | 3000 | 1.1k |
| 1141G | Privatization of Roads in Treeland | | | 1900 | 2.6k |
| 1133F2 | Spanning Tree with One Fixed Degree | | | 1900 | 3.9k |
| 1131D | Gourmet choice | | | 2000 | 3.7k |
| 1120D | Power Tree | | | 2500 | 1.8k |
| 1108F | MST Unification | | | 2100 | 3.7k |
| 1106D | Lunar New Year and a Wander | | | 1500 | 20.7k |
| 1098C | Construct a tree | | | 2400 | 1.2k |
| 1095F | Make It Connected | | | 1900 | 7.8k |
| 1091E | New Year and the Acquaintance Estimation | | | 2400 | 1.1k |
| 1076D | Edge Deletion | | | 1800 | 6.1k |
| 1056D | Decorate Apple Tree | | | 1600 | 6.8k |
| 1042F | Leaf Sets | | | 2400 | 1.6k |
| 1041E | Tree Reconstruction | | | 1900 | 3.9k |
| 1029E | Tree with Small Distances | | | 2100 | 3.5k |
| 1009D | Relatively Prime Graph | | | 1700 | 6.7k |
| 1009G | Allowed Letters | | | 2400 | 1.1k |
| 999E | Reachability from the Capital | | | 2000 | 8.1k |
| 986A | Fair | | | 1600 | 8.6k |
| 982C | Cut 'em all! | | | 1500 | 16.6k |
| 958B2 | Maximum Control (medium) | | | 2200 | 765 |
| 939D | Love Rescue | | | 1600 | 8.3k |
| 912D | Fishes | | | 2100 | 2.2k |
| 911F | Tree Destruction | | | 2400 | 2.4k |
| 909E | Coprocessor | | | 1900 | 2.5k |
| 908F | New Year and Rainbow Roads | | | 2400 | 1.6k |
| 893C | Rumor | | | 1300 | 29.1k |
| 884F | Anti-Palindromize | | | 2500 | 1.3k |
| 883B | Berland Army | | | 2600 | 479 |
| 875F | Royal Questions | | | 2500 | 1.6k |
| 871E | Restore the Tree | | | 2900 | 204 |
| 850D | Tournament Construction | | | 2800 | 498 |
| 825E | Minimal Labels | | | 2300 | 4.4k |
| 780C | Andryusha and Colored Balloons | | | 1600 | 10.3k |
| 780D | Innokenty and a Football League | | | 1900 | 3.1k |
| 769C | Cycle In Maze | | | 1700 | 3.2k |
| 767C | Garland | | | 2000 | 4.7k |
| 761E | Dasha and Puzzle | | | 2000 | 2.4k |
| 758E | Broken Tree | | | 2600 | 636 |
| 737E | Tanya is 5! | | | 3300 | 295 |
| 731C | Socks | | | 1600 | 8k |
| 730I | Olympiad in Programming and Sports | | | 2000 | 2.9k |
| 729E | Subordinates | | | 1900 | 2.4k |
| 723D | Lakes in Berland | | | 1600 | 7.6k |
| 723E | One-Way Reform | | | 2200 | 2.3k |
| 723F | st-Spanning Tree | | | 2300 | 1.8k |
| 708C | Centroids | | | 2300 | 4.5k |
| 704B | Ant Man | | | 2500 | 2.2k |
| 689B | Mike and Shortcuts | | | 1600 | 6.7k |
| 659E | New Reform | | | 1600 | 8.1k |
| 659F | Polycarp and Hay | | | 2000 | 2k |
| 650C | Table Compression | | | 2200 | 2.2k |
| 638C | Road Improvement | | | 1800 | 2.4k |
| 627D | Preorder Test | | | 2600 | 1k |
| 571C | CNF 2 | | | 2500 | 756 |
| 558C | Amr and Chemistry | | | 1900 | 4.2k |
| 553D | Nudist Beach | | | 2300 | 1.1k |
| 549B | Looksery Party | | | 2300 | 1.6k |
| 545E | Paths and Trees | | | 2000 | 5.8k |
| 525D | Arthur and Walls | | | 2400 | 2.3k |
| 520B | Two Buttons | | | 1400 | 64.7k |
| 500B | New Year Permutation | | | 1600 | 9.7k |
| 449B | Jzzhu and Cities | | | 2000 | 11.2k |