| 1463E | Plan of Lectures | | | 2400 | 1.8k |
| 1444C | Team-Building | | | 2500 | 1.9k |
| 1442B | Identify the Operations | | | 1800 | 5.4k |
| 1434E | A Convex Game | | | 3500 | 307 |
| 1423H | Virus | | | 2500 | 669 |
| 1419F | Rain of Fire | | | 2800 | 632 |
| 1416D | Graph and Queries | | | 2600 | 2.9k |
| 1411C | Peaceful Rooks | | | 1700 | 8.7k |
| 1408E | Avoid Rainbow Cycles | | | 2400 | 2.2k |
| 1408G | Clusterization Counting | | | 2700 | 1.4k |
| 1402A | Fancy Fence | | | 1800 | 1.4k |
| 1400G | Mercenaries | | | 2600 | 1.2k |
| 1386C | Joker | | | 2800 | 698 |
| 1385G | Columns Swaps | | | 2300 | 1.9k |
| 1383A | String Transformation 1 | | | 1700 | 11.4k |
| 1380E | Merging Towers | | | 2300 | 2.5k |
| 1370D | Odd-Even Subsequence | | | 2000 | 11.2k |
| 1365D | Solve The Maze | | | 1700 | 21.3k |
| 1361C | Johnny and Megan's Necklace | | | 2500 | 2.1k |
| 1344B | Monopole Magnets | | | 2000 | 6.4k |
| 1335F | Robots on a Grid | | | 2200 | 2.5k |
| 1332C | K-Complete Word | | | 1500 | 21.7k |
| 1307F | Cow and Vacation | | | 3300 | 690 |
| 1305G | Kuroni and Antihype | | | 3500 | 1.5k |
| 1303F | Number of Components | | | 2800 | 671 |
| 1292A | NEKO's Maze Game | | | 1400 | 14k |
| 1290C | Prefix Enlightenment | | | 2400 | 2.1k |
| 1278D | Segment Tree | | | 2100 | 4.4k |
| 1276B | Two Fairs | | | 1900 | 5.7k |
| 1263D | Secret Passwords | | | 1500 | 16.6k |
| 1254E | Send Tree to Charlie | | | 3300 | 459 |
| 1253D | Harmonious Graph | | | 1700 | 10.4k |
| 1253F | Cheap Robot | | | 2500 | 2.4k |
| 1249B1 | Books Exchange (easy version) | | | 1000 | 22.5k |
| 1249B2 | Books Exchange (hard version) | | | 1300 | 18.6k |
| 1245D | Shichikuji and Power Grid | | | 1900 | 10.1k |
| 1242B | 0-1 MST | | | 1900 | 9.6k |
| 1236E | Alice and the Unfair Game | | | 2500 | 785 |
| 1220E | Tourism | | | 2200 | 3.1k |
| 1217F | Forced Online Queries Problem | | | 2600 | 744 |
| 1213F | Unstable String Sort | | | 2100 | 3.1k |
| 1213G | Path Queries | | | 1800 | 9.9k |
| 1209D | Cow and Snacks | | | 1700 | 10.9k |
| 1209G1 | Into Blocks (easy version) | | | 2000 | 4.1k |
| 1184E3 | Daleks' Invasion (hard) | | | 2400 | 698 |
| 1176E | Cover it! | | | 1700 | 14k |
| 1167C | News Distribution | | | 1400 | 27.4k |
| 1166F | Vicky's Delivery Service | | | 2400 | 847 |
| 1156D | 0-1-Tree | | | 2200 | 4.9k |
| 1156E | Special Segments of Permutation | | | 2200 | 4.2k |
| 1140F | Extending Set of Points | | | 2600 | 1.6k |
| 1139C | Edgy Trees | | | 1500 | 17.4k |
| 1133F2 | Spanning Tree with One Fixed Degree | | | 1900 | 3.9k |
| 1131D | Gourmet choice | | | 2000 | 3.7k |
| 1131F | Asya And Kittens | | | 1700 | 7.9k |
| 1130C | Connect | | | 1400 | 9.5k |
| 1120D | Power Tree | | | 2500 | 1.8k |
| 1108F | MST Unification | | | 2100 | 3.7k |
| 1107G | Vasya and Maximum Profit | | | 2400 | 1.3k |
| 1095F | Make It Connected | | | 1900 | 7.8k |
| 1081D | Maximum Distance | | | 1800 | 4.8k |
| 1055B | Alice and Hairdresser | | | 1300 | 5.6k |
| 1051G | Distinctification | | | 2900 | 523 |
| 1044D | Deduction Queries | | | 2400 | 1.2k |
| 1042F | Leaf Sets | | | 2400 | 1.6k |
| 1039C | Network Safety | | | 2200 | 1.5k |
| 1027F | Session in BSU | | | 2400 | 2k |
| 1023F | Mobile Phone Network | | | 2600 | 1.1k |
| 1012B | Chemical table | | | 1900 | 4.4k |
| 1012E | Cycle sort | | | 3100 | 559 |
| 1009F | Dominant Indices | | | 2300 | 8.2k |
| 990G | GCD Counting | | | 2400 | 2.4k |
| 986C | AND Graph | | | 2500 | 2.8k |
| 982D | Shark | | | 1900 | 2.5k |
| 979D | Kuro and GCD and XOR and SUM | | | 2200 | 2.3k |
| 977E | Cyclic Components | | | 1500 | 26.6k |
| 962G | Visible Black Areas | | | 2800 | 254 |
| 959B | Mahmoud and Ehab and the message | | | 1200 | 10.7k |
| 939D | Love Rescue | | | 1600 | 8.3k |
| 938G | Shortest Path Queries | | | 2900 | 1.2k |
| 936E | Iqea | | | 3400 | 261 |
| 920E | Connected Components? | | | 2100 | 8k |
| 920F | SUM and REPLACE | | | 2000 | 9k |
| 915F | Imbalance Value of a Tree | | | 2400 | 3.2k |
| 902B | Coloring a Tree | | | 1200 | 12.1k |
| 901C | Bipartite Segments | | | 2300 | 1.3k |
| 899E | Segments Removal | | | 2000 | 3.6k |
| 896E | Welcome home, Chtholly | | | 3100 | 2.5k |
| 891C | Envy | | | 2300 | 3.1k |
| 886C | Petya and Catacombs | | | 1300 | 5.7k |
| 884E | Binary Matrix | | | 2500 | 826 |
| 875B | Sorting the Coins | | | 1500 | 5.4k |
| 875F | Royal Questions | | | 2500 | 1.6k |
| 873F | Forbidden Indices | | | 2400 | 1.9k |
| 870E | Points, Lines and Ready-made Titles | | | 2300 | 1.3k |
| 859E | Desk Disorder | | | 2100 | 2.2k |
| 843A | Sorting by Subsequences | | | 1400 | 6k |
| 817D | Imbalanced Array | | | 1900 | 6.6k |
| 813F | Bipartite Checking | | | 2500 | 1.8k |
| 811E | Vladik and Entertaining Flags | | | 2600 | 1k |