| 1669E | 2-Letter Strings | | | 1200 | 21.8k |
| 1669H | Maximal AND | | | 1300 | 31.1k |
| 1668A | Direction Change | | | 800 | 16.9k |
| 1668B | Social Distance | | | 900 | 18k |
| 1667A | Make it Increasing | | | 1300 | 15.8k |
| 1667C | Half Queen Cover | | | 2400 | 2.1k |
| 1667E | Centroid Probabilities | | | 3000 | 938 |
| 1666E | Even Split | | | 2500 | 891 |
| 1666G | Global Warming | | | 3100 | 154 |
| 1666H | Heroes of Might | | | 3500 | 93 |
| 1666I | Interactive Treasure Hunt | | | 2200 | 1.8k |
| 1665A | GCD vs LCM | | | 800 | 26.6k |
| 1665D | GCD Guess | | | 2000 | 4.8k |
| 1663B | Mike's Sequence | | | unrated | 3.6k |
| 1663C | Pōja Verdon | | | unrated | 5.9k |
| 1663D | Is it rated - 3 | | | unrated | 1.5k |
| 1662C | European Trip | | | unrated | 387 |
| 1662E | Round Table | | | unrated | 186 |
| 1662H | Boundary | | | unrated | 3.4k |
| 1662L | Il Derby della Madonnina | | | unrated | 1.4k |
| 1662N | Drone Photo | | | unrated | 954 |
| 1661A | Array Balancing | | | 800 | 19.5k |
| 1661C | Water the Trees | | | 1700 | 10.7k |
| 1661E | Narrow Components | | | 2500 | 1.2k |
| 1660A | Vasya and Coins | | | 800 | 39.5k |
| 1660B | Vlad and Candies | | | 800 | 30k |
| 1660D | Maximum Product Strikes Back | | | 1600 | 12k |
| 1660F1 | Promising String (easy version) | | | 1700 | 8k |
| 1660F2 | Promising String (hard version) | | | 2100 | 3.2k |
| 1659A | Red Versus Blue | | | 1000 | 33.2k |
| 1659C | Line Empire | | | 1500 | 15.9k |
| 1659D | Reverse Sort Sum | | | 1900 | 4.5k |
| 1658A | Marin and Photoshoot | | | 800 | 20.9k |
| 1658B | Marin and Anti-coprime Permutation | | | 800 | 19.6k |
| 1658C | Shinju and the Lost Permutation | | | 1700 | 10k |
| 1658D1 | 388535 (Easy Version) | | | 1600 | 10.1k |
| 1658D2 | 388535 (Hard Version) | | | 2300 | 3.2k |
| 1658E | Gojou and Matrix Game | | | 2500 | 1.3k |
| 1658F | Juju and Binary String | | | 2700 | 1k |
| 1657A | Integer Moves | | | 800 | 25k |
| 1657D | For Gamers. By Gamers. | | | 2000 | 5.4k |
| 1657E | Star MST | | | 2200 | 2.5k |
| 1656A | Good Pairs | | | 800 | 20.5k |
| 1656B | Subtract Operation | | | 1100 | 28.3k |
| 1656C | Make Equal With Mod | | | 1200 | 21.2k |
| 1656D | K-good | | | 1900 | 7.6k |
| 1656E | Equal Tree Sums | | | 2200 | 3.9k |
| 1656F | Parametric MST | | | 2600 | 1.3k |
| 1656G | Cycle Palindrome | | | 3200 | 505 |
| 1656H | Equal LCM Subsets | | | 3200 | 836 |
| 1654D | Potion Brewing Class | | | 2100 | 3.1k |
| 1654E | Arithmetic Operations | | | 2300 | 2.4k |
| 1654H | Three Minimums | | | 3500 | 109 |
| 1651E | Sum of Matchings | | | 2600 | 670 |
| 1650B | DIV + MOD | | | 900 | 30.2k |
| 1650D | Twist the Permutation | | | 1300 | 15.3k |
| 1650E | Rescheduling the Exam | | | 1900 | 4.5k |
| 1648A | Weird Sum | | | 1400 | 19.8k |
| 1648B | Integral Array | | | 1800 | 7.4k |
| 1647A | Madoka and Math Dad | | | 800 | 23.5k |
| 1647D | Madoka and the Best School in Russia | | | 1900 | 5.7k |
| 1646A | Square Counting | | | 800 | 25.5k |
| 1646C | Factorials and Powers of Two | | | 1500 | 20.5k |
| 1646E | Power Board | | | 2200 | 2.8k |
| 1644D | Cross Coloring | | | 1700 | 7.9k |
| 1644E | Expand the Path | | | 1900 | 3.5k |
| 1644F | Basis | | | 2900 | 511 |
| 1641D | Two Arrays | | | 2700 | 1.6k |
| 1641E | Special Positions | | | 3300 | 365 |
| 1638A | Reverse | | | 800 | 22.2k |
| 1638B | Odd Swap Sort | | | 1100 | 22.7k |
| 1638C | Inversion Graph | | | 1300 | 16.1k |
| 1637B | MEX and Array | | | 1100 | 15.5k |
| 1637D | Yet Another Minimization Problem | | | 1800 | 9.1k |
| 1637G | Birthday | | | 3000 | 653 |
| 1637H | Minimize Inversions Number | | | 3500 | 616 |
| 1635D | Infinite Set | | | 1800 | 7.1k |
| 1634B | Fortune Telling | | | 1400 | 23.3k |
| 1634D | Finding Zero | | | 2000 | 4.8k |
| 1634F | Fibonacci Additions | | | 2700 | 2k |
| 1633C | Kill the Monster | | | 1100 | 21.4k |
| 1633E | Spanning Tree Queries | | | 2400 | 1.8k |
| 1632C | Strange Test | | | 1600 | 14.2k |
| 1632D | New Year Concert | | | 2000 | 5.4k |
| 1630E | Expected Components | | | 2900 | 621 |
| 1629B | GCD Arrays | | | 800 | 25.5k |
| 1628A | Meximum Array | | | 1400 | 17.2k |
| 1628C | Grid Xor | | | 2300 | 3.6k |
| 1628D1 | Game on Sum (Easy Version) | | | 2100 | 3.8k |
| 1628D2 | Game on Sum (Hard Version) | | | 2400 | 2.7k |
| 1627D | Not Adding | | | 1900 | 9.5k |
| 1626C | Monsters And Spells | | | 1700 | 12k |
| 1626D | Martial Arts Tournament | | | 2100 | 4.4k |
| 1626F | A Random Code Problem | | | 2800 | 922 |
| 1625A | Ancient Civilization | | | 800 | 18.4k |
| 1625D | Binary Spiders | | | 2300 | 2.4k |
| 1624A | Plus One on the Subset | | | 800 | 61.1k |
| 1624B | Make AP | | | 900 | 55.8k |
| 1624C | Division by Two and Permutation | | | 1100 | 27.1k |
| 1623A | Robot Cleaner | | | 800 | 20.8k |