| 2028E | Alice's Adventures in the Rabbit Hole | | | 2300 | 2k |
| 2025B | Binomial Coefficients, Kind Of | | | 1100 | 19.9k |
| 2025E | Card Game | | | 2200 | 2.4k |
| 2018F1 | Speedbreaker Counting (Easy Version) | | | 2900 | 344 |
| 2001E1 | Deterministic Heap (Easy Version) | | | 2400 | 1.6k |
| 2001E2 | Deterministic Heap (Hard Version) | | | 2900 | 302 |
| 1997F | Chips on a Line | | | 2700 | 1.3k |
| 1992G | Ultra-Meow | | | 2000 | 4.3k |
| 1989E | Distance to Different | | | 2300 | 2.6k |
| 1988F | Heartbeat | | | 3000 | 481 |
| 1984C2 | Magnitude (Hard Version) | | | 1700 | 8.8k |
| 1984H | Tower Capturing | | | 3300 | 280 |
| 1982E | Number of k-good subarrays | | | 2300 | 1.9k |
| 1975F | Set | | | 2600 | 1.1k |
| 1967C | Fenwick Tree | | | 2300 | 2.3k |
| 1967E1 | Again Counting Arrays (Easy Version) | | | 3100 | 449 |
| 1967E2 | Again Counting Arrays (Hard Version) | | | 3500 | 231 |
| 1957C | How Does the Rook Move? | | | 1600 | 12.2k |
| 1957E | Carousel of Combinations | | | 2400 | 1.7k |
| 1954D | Colored Balls | | | 1800 | 8.3k |
| 1954F | Unique Strings | | | 3100 | 427 |
| 1946E | Girl Permutation | | | 2200 | 3.2k |
| 1943D1 | Counting Is Fun (Easy Version) | | | 2400 | 2k |
| 1943D2 | Counting Is Fun (Hard Version) | | | 2800 | 1.2k |
| 1942G | Bessie and Cards | | | 2800 | 786 |
| 1930E | 2..3...4.... Wonderful! Wonderful! | | | 2400 | 1.5k |
| 1929D | Sasha and a Walk in the City | | | 1900 | 5.9k |
| 1925D | Good Trip | | | 1900 | 4.9k |
| 1924D | Balanced Subsequences | | | 2700 | 1.5k |
| 1920E | Counting Binary Strings | | | 2100 | 3.5k |
| 1919E | Counting Prefixes | | | 2600 | 1.2k |
| 1917B | Erase First or Second Letter | | | 1100 | 38.7k |
| 1917D | Yet Another Inversions Problem | | | 2300 | 2.1k |
| 1916H1 | Matrix Rank (Easy Version) | | | 2700 | 751 |
| 1916H2 | Matrix Rank (Hard Version) | | | 2700 | 681 |
| 1914G1 | Light Bulbs (Easy Version) | | | 2100 | 2.5k |
| 1914G2 | Light Bulbs (Hard Version) | | | 2300 | 1.9k |
| 1912K | Kim's Quest | | | 1800 | 4.4k |
| 1910I | Inverse Problem | | | 2700 | 70 |
| 1909F1 | Small Permutation Problem (Easy Version) | | | 2200 | 2.3k |
| 1909F2 | Small Permutation Problem (Hard Version) | | | 2500 | 1.3k |
| 1909I | Short Permutation Problem | | | 1900 | 183 |
| 1906H | Twin Friends | | | 2200 | 1.1k |
| 1906J | Count BFS Graph | | | 2100 | 1.1k |
| 1905E | One-X | | | 2400 | 1.3k |
| 1895F | Fancy Arrays | | | 2600 | 1.1k |
| 1893E | Cacti Symphony | | | 3500 | 342 |
| 1879C | Make it Alternating | | | 1300 | 28.8k |
| 1879D | Sum of XOR Functions | | | 1700 | 11.1k |
| 1868C | Travel Plan | | | 2400 | 1.4k |
| 1866M | Mighty Rock Tower | | | 2400 | 1k |
| 1863G | Swaps | | | 2800 | 1k |
| 1861E | Non-Intersecting Subpermutations | | | 2300 | 2.1k |
| 1854C | Expected Destruction | | | 2500 | 2k |
| 1848F | Vika and Wiki | | | 2400 | 2.1k |
| 1844H | Multiple of Three Cycles | | | 3400 | 305 |
| 1843D | Apple Tree | | | 1200 | 22.3k |
| 1842G | Tenzing and Random Operations | | | 2800 | 1.7k |
| 1838E | Count Supersequences | | | 2500 | 1.9k |
| 1835E | Old Mobile | | | 3500 | 335 |
| 1832E | Combinatorics Problem | | | 2200 | 2.6k |
| 1829H | Don't Blame Me | | | 1700 | 11.3k |
| 1821F | Timber | | | 2600 | 1k |
| 1815D | XOR Counting | | | 2600 | 1.5k |
| 1811G1 | Vlad and the Nice Paths (easy version) | | | 2100 | 2.6k |
| 1811G2 | Vlad and the Nice Paths (hard version) | | | 2200 | 2.2k |
| 1809G | Prediction | | | 2800 | 643 |
| 1808E1 | Minibuses on Venus (easy version) | | | 2200 | 1.6k |
| 1808E2 | Minibuses on Venus (medium version) | | | 2500 | 892 |
| 1808E3 | Minibuses on Venus (hard version) | | | 2800 | 622 |
| 1806D | DSU Master | | | 2500 | 1.3k |
| 1799G | Count Voting | | | 2600 | 1.1k |
| 1794D | Counting Factorizations | | | 1900 | 4.6k |
| 1792F1 | Graph Coloring (easy version) | | | 2700 | 1k |
| 1792F2 | Graph Coloring (hard version) | | | 2900 | 558 |
| 1789C | Serval and Toxel's Arrays | | | 1500 | 10.1k |
| 1784D | Wooden Spoon | | | 2400 | 1.4k |
| 1784E | Infinite Game | | | 3100 | 485 |
| 1781F | Bracket Insertion | | | 2700 | 1.4k |
| 1780F | Three Chairs | | | 2300 | 2k |
| 1778D | Flexible String Revisit | | | 2100 | 3.5k |
| 1777D | Score of a Tree | | | 1900 | 4.9k |
| 1774G | Segment Covering | | | 3200 | 692 |
| 1773G | Game of Questions | | | 2800 | 560 |
| 1770E | Koxia and Tree | | | 2400 | 1.6k |
| 1770F | Koxia and Sequence | | | 3100 | 1k |
| 1767D | Playoff | | | 1500 | 11.3k |
| 1765C | Card Guessing | | | 2600 | 594 |
| 1764D | Doremy's Pegging Game | | | 2000 | 3.2k |
| 1763D | Valid Bitonic Permutations | | | 2200 | 2.4k |
| 1761F2 | Anti-median (Hard Version) | | | 3500 | 109 |
| 1750F | Majority | | | 2700 | 1.3k |
| 1750G | Doping | | | 3300 | 407 |
| 1749D | Counting Arrays | | | 1900 | 6.4k |
| 1747E | List Generation | | | 2900 | 701 |
| 1743G | Antifibonacci Cut | | | 3000 | 381 |
| 1740F | Conditional Mix | | | 2600 | 1.2k |
| 1739C | Card Game | | | 1500 | 10.2k |
| 1738E | Balance Addicts | | | 2300 | 1.9k |
| 1737E | Ela Goes Hiking | | | 2500 | 1.1k |