| 1838D | Bracket Walk | | | 2100 | 3.8k |
| 1838E | Count Supersequences | | | 2500 | 1.9k |
| 1838F | Stuck Conveyor | | | 3000 | 397 |
| 1837A | Grasshopper on a Line | | | 800 | 58.5k |
| 1837B | Comparison String | | | 900 | 53.6k |
| 1837C | Best Binary String | | | 1000 | 24.9k |
| 1837D | Bracket Coloring | | | 1400 | 23.2k |
| 1837E | Playoff Fixing | | | 2200 | 2.6k |
| 1837F | Editorial for Two | | | 2400 | 2.7k |
| 1836A | Destroyer | | | 800 | 21.5k |
| 1836B | Astrophysicists | | | 1100 | 13.7k |
| 1835A | k-th equality | | | 1700 | 8.8k |
| 1835B | Lottery | | | 2500 | 1.1k |
| 1835C | Twin Clusters | | | 2600 | 1.2k |
| 1835D | Doctor's Brown Hypothesis | | | 2900 | 707 |
| 1835E | Old Mobile | | | 3500 | 335 |
| 1835F | Good Graph | | | 3500 | 347 |
| 1834A | Unit Array | | | 800 | 49.3k |
| 1834B | Maximum Strength | | | 1000 | 17.3k |
| 1834C | Game with Reversing | | | 1200 | 15.3k |
| 1834D | Survey in Class | | | 1900 | 5.6k |
| 1834E | MEX of LCM | | | 2300 | 2.9k |
| 1834F | Typewriter | | | 2500 | 713 |
| 1833A | Musical Puzzle | | | 800 | 35.4k |
| 1833B | Restore the Weather | | | 900 | 29.9k |
| 1833C | Vlad Building Beautiful Array | | | 800 | 28.1k |
| 1833D | Flipper | | | 1400 | 15.3k |
| 1833E | Round Dance | | | 1600 | 19.5k |
| 1833F | Ira and Flamenco | | | 1700 | 10.6k |
| 1833G | Ksyusha and Chinchilla | | | 1800 | 6.5k |
| 1832A | New Palindrome | | | 800 | 29.4k |
| 1832B | Maximum Sum | | | 1100 | 38.2k |
| 1832C | Contrast Value | | | 1200 | 36.7k |
| 1832D1 | Red-Blue Operations (Easy Version) | | | 2100 | 3.5k |
| 1832D2 | Red-Blue Operations (Hard Version) | | | 2400 | 2.4k |
| 1832E | Combinatorics Problem | | | 2200 | 2.6k |
| 1832F | Zombies | | | 3200 | 378 |
| 1831A | Twin Permutations | | | 800 | 49.6k |
| 1831B | Array merging | | | 1000 | 37.7k |
| 1830A | Copil Copac Draws Trees | | | 1400 | 21.3k |
| 1830B | The BOSS Can Count Pairs | | | 2000 | 6k |
| 1830C | Hyperregular Bracket Strings | | | 2400 | 2.3k |
| 1830D | Mex Tree | | | 2800 | 958 |
| 1830E | Bully Sort | | | 3500 | 349 |
| 1830F | The Third Grace | | | 3200 | 409 |
| 1829A | Love Story | | | 800 | 72.7k |
| 1829B | Blank Space | | | 800 | 83k |
| 1829C | Mr. Perfectly Fine | | | 800 | 32.9k |
| 1829D | Gold Rush | | | 1000 | 35k |
| 1829E | The Lakes | | | 1100 | 27.7k |
| 1829F | Forever Winter | | | 1300 | 22.4k |
| 1829G | Hits Different | | | 1600 | 16k |
| 1829H | Don't Blame Me | | | 1700 | 11.3k |
| 1828A | Divisible Array | | | 800 | 25.5k |
| 1828B | Permutation Swap | | | 900 | 42.1k |
| 1827A | Counting Orders | | | 1100 | 30.7k |
| 1827B1 | Range Sorting (Easy Version) | | | 2000 | 4.6k |
| 1827B2 | Range Sorting (Hard Version) | | | 2400 | 2.4k |
| 1827C | Palindrome Partition | | | 2600 | 1.8k |
| 1827D | Two Centroids | | | 2800 | 1k |
| 1827E | Bus Routes | | | 3400 | 1.1k |
| 1827F | Copium Permutation | | | 3500 | 140 |
| 1826A | Trust Nobody | | | 1200 | 17.5k |
| 1826B | Lunatic Never Content | | | 1100 | 30k |
| 1826C | Dreaming of Freedom | | | 1300 | 15.9k |
| 1826D | Running Miles | | | 1700 | 15.8k |
| 1826E | Walk the Runway | | | 2400 | 2k |
| 1826F | Fading into Fog | | | 2800 | 478 |
| 1825A | LuoTianyi and the Palindrome String | | | 800 | 20.9k |
| 1825B | LuoTianyi and the Table | | | 1000 | 16.3k |
| 1824A | LuoTianyi and the Show | | | 1400 | 12.6k |
| 1824B1 | LuoTianyi and the Floating Islands (Easy Version) | | | 1800 | 6.3k |
| 1824B2 | LuoTianyi and the Floating Islands (Hard Version) | | | 2300 | 3.6k |
| 1824C | LuoTianyi and XOR-Tree | | | 2500 | 1.7k |
| 1824D | LuoTianyi and the Function | | | 3000 | 741 |
| 1824E | LuoTianyi and Cartridge | | | 3500 | 196 |
| 1823A | A-characteristic | | | 800 | 17.3k |
| 1823B | Sort with Step | | | 900 | 18.3k |
| 1823C | Strongly Composite | | | 1300 | 14k |
| 1823D | Unique Palindromes | | | 1900 | 4.4k |
| 1823E | Removing Graph | | | 2500 | 1.5k |
| 1823F | Random Walk | | | 2600 | 1.4k |
| 1822A | TubeTube Feed | | | 800 | 26.2k |
| 1822B | Karina and Array | | | 800 | 26.7k |
| 1822C | Bun Lover | | | 800 | 24.9k |
| 1822D | Super-Permutation | | | 1200 | 19.2k |
| 1822E | Making Anti-Palindromes | | | 1600 | 12.6k |
| 1822F | Gardening Friends | | | 1700 | 7.9k |
| 1822G1 | Magic Triples (Easy Version) | | | 1700 | 9.9k |
| 1822G2 | Magic Triples (Hard Version) | | | 2200 | 3.1k |
| 1821A | Matching | | | 800 | 21.4k |
| 1821B | Sort the Subarray | | | 1100 | 30.2k |
| 1821C | Tear It Apart | | | 1300 | 16.4k |
| 1821D | Black Cells | | | 1900 | 5.6k |
| 1821E | Rearrange Brackets | | | 2100 | 2.8k |
| 1821F | Timber | | | 2600 | 1k |
| 1820A | Yura's New Name | | | 800 | 17.8k |
| 1820B | JoJo's Incredible Adventures | | | 1100 | 24.5k |
| 1819A | Constructive Problem | | | 1300 | 14.7k |
| 1819B | The Butcher | | | 1900 | 4.3k |