| 2249B | Permutation Cuts | | | unrated | 2.9k |
| 2246C | 0mar and Alternating Sums | | | unrated | 7.9k |
| 2245F | Familiar? | | | unrated | 244 |
| 2241E | Fair and Square | | | 1600 | 5.8k |
| 2240B | AI Finds Nothing Here | | | 1100 | 10.5k |
| 2239D | Hunting the Beast | | | 2500 | 601 |
| 2238F | Infinite Work | | | 2600 | 406 |
| 2236F2 | Elections in Saransk (hard version) | | | 2200 | 958 |
| 2234E | Vlad, Misha and Two Arrays | | | 2100 | 1.9k |
| 2233E1 | Permutation Transmission (Easy Version) | | | 2200 | 1.2k |
| 2233E2 | Permutation Transmission (Difficult Version) | | | 2300 | 1.1k |
| 2232E | Snaking Arrangement | | | 2600 | 587 |
| 2229E | Deconstruction Tree | | | 2100 | 2k |
| 2229H | Wowee Binary String | | | 3200 | 212 |
| 2228E1 | Amanojaku and Sequence (Easy Version) | | | 2400 | 612 |
| 2228E2 | Amanojaku and Sequence (Hard Version) | | | 2500 | 307 |
| 2222H | Counting Sort? | | | 3500 | 147 |
| 2217F | Interval Game | | | 2300 | 885 |
| 2217G | Down the Pivot | | | 2600 | 444 |
| 2211D | AND-array | | | 1900 | 3.2k |
| 2211F | Learning Binary Search | | | 2400 | 1k |
| 2208E | Counting Cute Arrays | | | 2700 | 474 |
| 2207E2 | N-MEX (Counting Version) | | | 2400 | 964 |
| 2206I | Growth Factor | | | 2900 | 226 |
| 2205E | Simons and Dividing the Rhythm | | | 2100 | 1.8k |
| 2204F | Sum of Fractions | | | 2200 | 1.3k |
| 2201C | Rigged Bracket Sequence | | | 2000 | 2.2k |
| 2200G | Operation Permutation | | | 2200 | 1.2k |
| 2199F | Self-Produced Sequences | | | 2000 | 172 |
| 2199H | Sum of MEX | | | 2300 | 100 |
| 2196C1 | Interactive Graph (Simple Version) | | | 1800 | 3.9k |
| 2196C2 | Interactive Graph (Hard Version) | | | 2000 | 2.7k |
| 2190B1 | Sub-RBS (Easy Version) | | | 1400 | 11.5k |
| 2190D | Prufer Vertex | | | 2500 | 1k |
| 2190E | Median Permutation | | | 3200 | 261 |
| 2189D1 | Little String (Easy Version) | | | 1900 | 4.2k |
| 2189D2 | Little String (Hard Version) | | | 2200 | 2.1k |
| 2184D | Unfair Game | | | 1600 | 10.1k |
| 2184E | Exquisite Array | | | 1800 | 6.2k |
| 2183D2 | Tree Coloring (Hard Version) | | | 2100 | 2.6k |
| 2183F | Jumping Man | | | 2500 | 1.2k |
| 2182C | Production of Snowmen | | | 1200 | 16.3k |
| 2182D | Christmas Tree Decoration | | | 1600 | 9.4k |
| 2182F1 | Christmas Reindeer (easy version) | | | 2300 | 1.3k |
| 2182F2 | Christmas Reindeer (hard version) | | | 2500 | 1.1k |
| 2182G | Short Garland | | | 2800 | 383 |
| 2180F1 | Control Car (Easy Version) | | | 2800 | 431 |
| 2180F2 | Control Car (Hard Version) | | | 3200 | 244 |
| 2180G | Balance | | | 3500 | 154 |
| 2178F | Conquer or of Forest | | | 2200 | 1.9k |
| 2178I | Numbers or Fireworks | | | 3300 | 265 |
| 2176F | Omega Numbers | | | 2400 | 1.6k |
| 2174C1 | Beautiful Patterns (Easy Version) | | | 2400 | 1.2k |
| 2174C2 | Beautiful Patterns (Hard Version) | | | 2500 | 1.1k |
| 2174F | Mosaic Tree | | | 2800 | 508 |
| 2172D | Divisor Card Game | | | 3100 | 114 |
| 2171G | Sakura Adachi and Optimal Sequences | | | 2000 | 2.4k |
| 2170E | Binary Strings and Blocks | | | 2100 | 2.4k |
| 2169F | Subsequence Problem | | | 2700 | 353 |
| 2168B | Locate | | | unrated | 1.6k |
| 2164F1 | Chain Prefix Rank (Easy Version) | | | 2600 | 1.3k |
| 2164F2 | Chain Prefix Rank (Hard Version) | | | 2900 | 648 |
| 2163C | Monopati | | | 1500 | 9.6k |
| 2163E | Plegma | | | 2700 | 676 |
| 2161E | Left is Always Right | | | 2400 | 803 |
| 2161F | SubMST | | | 3000 | 368 |
| 2159C | Twin Polynomials | | | 2300 | 2.7k |
| 2158F2 | Distinct GCDs (Hard Version) | | | 3000 | 287 |
| 2157H | Keygen 3 | | | 3200 | 238 |
| 2154F1 | Bombing (Easy Version) | | | 2700 | 594 |
| 2154F2 | Bombing (Hard Version) | | | 3300 | 195 |
| 2150B | Grid Counting | | | 1700 | 7.5k |
| 2150D | Attraction Theory | | | 2700 | 1k |
| 2150G | Counting Is Fun: The Finale | | | 3500 | 248 |
| 2147F | Exchange Queries | | | 2800 | 1.2k |
| 2147G | Modular Tetration | | | 3100 | 799 |
| 2146F | Bubble Sort | | | 2900 | 332 |
| 2145G | Cost of Coloring | | | 2900 | 642 |
| 2144C | Non-Descending Arrays | | | 1300 | 15.7k |
| 2144E1 | Looking at Towers (easy version) | | | 2200 | 2.7k |
| 2144E2 | Looking at Towers (difficult version) | | | 2500 | 1.5k |
| 2143D1 | Inversion Graph Coloring (Easy Version) | | | 1800 | 6.8k |
| 2143D2 | Inversion Graph Coloring (Hard Version) | | | 2200 | 3k |
| 2140E1 | Prime Gaming (Easy Version) | | | 2200 | 2.2k |
| 2140E2 | Prime Gaming (Hard Version) | | | 2500 | 1.3k |
| 2138D | Antiamuny and Slider Movement | | | 2600 | 682 |
| 2137F | Prefix Maximum Invariance | | | 1900 | 4.2k |
| 2135C | By the Assignment | | | 2000 | 5.4k |
| 2135E1 | Beyond the Palindrome (Easy Version) | | | 3300 | 808 |
| 2135E2 | Beyond the Palindrome (Hard Version) | | | 3500 | 188 |
| 2134F | Permutation Oddness | | | 2900 | 708 |
| 2129D | Permutation Blackhole | | | 2600 | 2.5k |
| 2128D | Sum of LDS | | | 1600 | 12.9k |
| 2127D | Root was Built by Love, Broken by Destiny | | | 1800 | 7.5k |
| 2127F | Hamed and AghaBalaSar | | | 2800 | 2.1k |
| 2125C | Count Good Numbers | | | 1100 | 23.3k |
| 2125E | Sets of Complementary Sums | | | 2500 | 1.4k |
| 2124F1 | Appending Permutations (Easy Version) | | | 2300 | 2.6k |
| 2124F2 | Appending Permutations (Hard Version) | | | 2800 | 848 |
| 2122E | Greedy Grid Counting | | | 2600 | 2.1k |