| 2229F | Load Unbalancing | | | 2400 | 1.1k |
| 2217F | Interval Game | | | 2300 | 885 |
| 2215D | EXPloration, EXPloitation, and Gain Some EXPerience! | | | 2800 | 162 |
| 2203B | Beautiful Numbers | | | 1000 | 16.2k |
| 2196E2 | Fuzzy Concatenation (Hard version) | | | 3000 | 238 |
| 2187B | Shortest Statement Ever | | | 1800 | 5.6k |
| 2180C | XOR-factorization | | | 1900 | 6.7k |
| 2180E | No Effect XOR | | | 2300 | 1.8k |
| 2173D | Taiga's Carry Chains | | | 1900 | 3.8k |
| 2157G | Isaac's Queries | | | 2800 | 672 |
| 2119E | And Constraint | | | 2600 | 732 |
| 2115D | Gellyfish and Forget-Me-Not | | | 2900 | 2.1k |
| 2086E | Zebra-like Numbers | | | 2400 | 1.7k |
| 2085C | Serval and The Formula | | | 1600 | 14k |
| 2064D | Eating | | | 1900 | 6k |
| 2061E | Kevin and And | | | 2000 | 4.1k |
| 2043F | Nim | | | 2700 | 918 |
| 1990D | Grid Puzzle | | | 1800 | 7.9k |
| 1979D | Fixing a Binary String | | | 1800 | 8k |
| 1956D | Nene and the Mex Operator | | | 2000 | 4.9k |
| 1930D2 | Sum over all Substrings (Hard Version) | | | 2100 | 3.1k |
| 1929E | Sasha and the Happy Tree Cutting | | | 2300 | 2.1k |
| 1903D2 | Maximum And Queries (hard version) | | | 2500 | 1.1k |
| 1886E | I Wanna be the Team Leader | | | 2400 | 1.9k |
| 1882D | Tree XOR | | | 1900 | 7.3k |
| 1868B2 | Candy Party (Hard Version) | | | 2100 | 2.8k |
| 1856E2 | PermuTree (hard version) | | | 2700 | 1.8k |
| 1847C | Vampiric Powers, anyone? | | | 1400 | 15k |
| 1846G | Rudolf and CodeVid-23 | | | 1900 | 5.9k |
| 1807G2 | Subsequence Addition (Hard Version) | | | 1100 | 29.4k |
| 1789F | Serval and Brain Power | | | 2700 | 1k |
| 1710C | XOR Triangle | | | 2500 | 1.7k |
| 1703G | Good Key, Bad Key | | | 1600 | 13k |
| 1680E | Moving Chips | | | 2000 | 4.4k |
| 1661B | Getting Zero | | | 1300 | 21.1k |
| 1584F | Strange LCS | | | 2600 | 1.2k |
| 1582F1 | Korney Korneevich and XOR (easy version) | | | 1800 | 6.7k |
| 1571E | Fix the String | | | 1700 | 376 |
| 1566B | MIN-MEX Cut | | | 800 | 21.4k |
| 1566C | MAX-MEX Cut | | | 1000 | 19.2k |
| 1560F2 | Nearest Beautiful Number (hard version) | | | 2100 | 5.1k |
| 1553C | Penalty | | | 1200 | 20k |
| 1516B | AGAGA XOOORRR | | | 1500 | 26.6k |
| 1491D | Zookeeper and The Infinite Zoo | | | 1800 | 8.5k |
| 1416C | XOR Inverse | | | 2000 | 5.2k |
| 1395C | Boboniu and Bit Operations | | | 1600 | 15.4k |
| 1391D | 505 | | | 2000 | 5.8k |
| 1383B | GameGame | | | 1900 | 5.6k |
| 1340B | Nastya and Scoreboard | | | 1700 | 8.4k |
| 1316E | Team Building | | | 2300 | 5.7k |
| 1285D | Dr. Evil Underscores | | | 1900 | 8.7k |
| 1225G | To Make 1 | | | 3100 | 665 |
| 1209E1 | Rotate Columns (easy version) | | | 2000 | 3.3k |
| 1209E2 | Rotate Columns (hard version) | | | 2500 | 2.4k |
| 1208F | Bits And Pieces | | | 2600 | 3.5k |
| 981D | Bookshelves | | | 1900 | 3.6k |
| 979D | Kuro and GCD and XOR and SUM | | | 2200 | 2.3k |
| 938F | Erasing Substrings | | | 2700 | 673 |
| 913C | Party Lemonade | | | 1600 | 8.5k |
| 755F | PolandBall and Gifts | | | 2600 | 2k |
| 429C | Guess the Tree | | | 2300 | 1.1k |
| 417D | Cunning Gena | | | 1900 | 3k |
| 356D | Bags and Coins | | | 2700 | 1.1k |
| 276D | Little Girl and Maximum XOR | | | 1700 | 16.8k |