| 1720D2 | Xor-Subsequence (hard version) | | | 2400 | 2.3k |
| 1716E | Swap and Maximum Block | | | 2500 | 1.4k |
| 1715D | 2+ doors | | | 1900 | 6.2k |
| 1713F | Lost Array | | | 2900 | 771 |
| 1710C | XOR Triangle | | | 2500 | 1.7k |
| 1709E | XOR Tree | | | 2400 | 4.2k |
| 1709F | Multiset of Strings | | | 2500 | 729 |
| 1707F | Bugaboo | | | 3500 | 186 |
| 1705E | Mark and Professor Koro | | | 2300 | 2.5k |
| 1705F | Mark and the Online Exam | | | 2900 | 718 |
| 1703G | Good Key, Bad Key | | | 1600 | 13k |
| 1699B | Almost Ternary Matrix | | | 900 | 22k |
| 1698A | XOR Mixup | | | 800 | 33.3k |
| 1698G | Long Binary String | | | 2900 | 397 |
| 1696A | NIT orz! | | | 800 | 20.4k |
| 1689E | ANDfinity | | | 2500 | 1.4k |
| 1688A | Cirno's Perfect Bitmasks Classroom | | | 800 | 23.7k |
| 1688B | Patchouli's Magical Talisman | | | 800 | 19.2k |
| 1682B | AND Sorting | | | 1100 | 27.9k |
| 1680E | Moving Chips | | | 2000 | 4.4k |
| 1679E | Typical Party in Dorm | | | 2400 | 1.5k |
| 1679F | Formalism for Formalism | | | 2600 | 813 |
| 1673E | Power or XOR? | | | 2500 | 851 |
| 1673F | Anti-Theft Road Planning | | | 2400 | 980 |
| 1670E | Hemose on the Tree | | | 2200 | 2k |
| 1670F | Jee, You See? | | | 2400 | 1.3k |
| 1669H | Maximal AND | | | 1300 | 31.1k |
| 1665D | GCD Guess | | | 2000 | 4.8k |
| 1665E | MinimizOR | | | 2500 | 1.9k |
| 1661B | Getting Zero | | | 1300 | 21.1k |
| 1659B | Bit Flipping | | | 1300 | 12.1k |
| 1659E | AND-MEX Walk | | | 2200 | 2k |
| 1658D1 | 388535 (Easy Version) | | | 1600 | 10.1k |
| 1658D2 | 388535 (Hard Version) | | | 2300 | 3.2k |
| 1654F | Minimal String Xoration | | | 2800 | 1.5k |
| 1646C | Factorials and Powers of Two | | | 1500 | 20.5k |
| 1641D | Two Arrays | | | 2700 | 1.6k |
| 1635A | Min Or Sum | | | 800 | 26.4k |
| 1635D | Infinite Set | | | 1800 | 7.1k |
| 1634B | Fortune Telling | | | 1400 | 23.3k |
| 1632B | Roof Construction | | | 1000 | 33.3k |
| 1632C | Strange Test | | | 1600 | 14.2k |
| 1630A | And Matching | | | 1500 | 16.3k |
| 1625A | Ancient Civilization | | | 800 | 18.4k |
| 1625D | Binary Spiders | | | 2300 | 2.4k |
| 1624G | MinOr Tree | | | 1900 | 7.9k |
| 1622E | Math Test | | | 2200 | 2.3k |
| 1620G | Subsequences Galore | | | 2400 | 1.2k |
| 1618F | Reverse | | | 2000 | 4.8k |
| 1616H | Keep XOR Low | | | 3000 | 1.4k |
| 1615B | And It's Non-Zero | | | 1300 | 18.1k |
| 1615D | X(or)-mas Tree | | | 2200 | 2.2k |
| 1614C | Divan and bitwise operations | | | 1500 | 11.4k |
| 1609E | William The Oblivious | | | 2400 | 2.5k |
| 1605D | Treelabeling | | | 2100 | 3.3k |
| 1601A | Array Elimination | | | 1300 | 22.3k |
| 1600J | Robot Factory | | | 1400 | 4.5k |
| 1599J | Bob's Beautiful Array | | | 2600 | 352 |
| 1598F | RBS | | | 2400 | 1.7k |
| 1594B | Special Numbers | | | 1100 | 22.4k |
| 1592C | Bakry and Partitioning | | | 1700 | 9.3k |
| 1592E | Bored Bakry | | | 2400 | 2k |
| 1584F | Strange LCS | | | 2600 | 1.2k |
| 1583F | Defender of Childhood Dreams | | | 2500 | 1.6k |
| 1582F1 | Korney Korneevich and XOR (easy version) | | | 1800 | 6.7k |
| 1571E | Fix the String | | | 1700 | 376 |
| 1569E | Playoff Restoration | | | 2600 | 902 |
| 1567B | MEXor Mixup | | | 1000 | 34.9k |
| 1567C | Carrying Conundrum | | | 1600 | 13.3k |
| 1566B | MIN-MEX Cut | | | 800 | 21.4k |
| 1566C | MAX-MEX Cut | | | 1000 | 19.2k |
| 1560F1 | Nearest Beautiful Number (easy version) | | | 1900 | 6.8k |
| 1560F2 | Nearest Beautiful Number (hard version) | | | 2100 | 5.1k |
| 1559A | Mocha and Math | | | 900 | 48.3k |
| 1557C | Moamen and XOR | | | 1700 | 10.9k |
| 1556D | Take a Guess | | | 1800 | 9k |
| 1556F | Sports Betting | | | 2500 | 1.5k |
| 1556G | Gates to Another World | | | 3300 | 471 |
| 1554B | Cobb | | | 1700 | 13.9k |
| 1554C | Mikasa | | | 1800 | 9.9k |
| 1553C | Penalty | | | 1200 | 20k |
| 1553H | XOR and Distance | | | 2900 | 909 |
| 1552D | Array Differentiation | | | 1800 | 8k |
| 1552G | A Serious Referee | | | 3000 | 687 |
| 1550E | Stringforces | | | 2500 | 1.9k |
| 1548D1 | Gregor and the Odd Cows (Easy) | | | 2300 | 1.6k |
| 1547D | Co-growing Sequence | | | 1300 | 18.8k |
| 1543C | Need for Pink Slips | | | 1900 | 5.7k |
| 1543D1 | RPD and Rap Sheet (Easy Version) | | | 1700 | 8.1k |
| 1543E | The Final Pursuit | | | 2700 | 499 |
| 1533H | Submatrices | | | unrated | 92 |
| 1530F | Bingo | | | 2600 | 1.2k |
| 1527A | And Then There Were K | | | 800 | 42.7k |
| 1523D | Love-Hate | | | 2400 | 2.5k |
| 1523F | Favorite Game | | | 3300 | 530 |
| 1519F | Chests and Keys | | | 3200 | 797 |
| 1516B | AGAGA XOOORRR | | | 1500 | 26.6k |
| 1516C | Baby Ehab Partitions Again | | | 1700 | 14.5k |
| 1515H | Phoenix and Bits | | | 3500 | 357 |
| 1514B | AND 0, Sum Big | | | 1200 | 36.7k |