| 1305H | Kuroni the Private Tutor | | | 3500 | 205 |
| 1304A | Two Rabbits | | | 800 | 26.9k |
| 1304B | Longest Palindrome | | | 1100 | 18.9k |
| 1304C | Air Conditioner | | | 1500 | 18k |
| 1304D | Shortest and Longest LIS | | | 1800 | 6.8k |
| 1304E | 1-Trees and Queries | | | 2000 | 6k |
| 1304F1 | Animal Observation (easy version) | | | 2300 | 2k |
| 1304F2 | Animal Observation (hard version) | | | 2400 | 1.9k |
| 1303A | Erasing Zeroes | | | 800 | 37.3k |
| 1303B | National Project | | | 1400 | 17k |
| 1303C | Perfect Keyboard | | | 1600 | 13.1k |
| 1303D | Fill The Bag | | | 1900 | 7.9k |
| 1303E | Erase Subsequences | | | 2200 | 3.4k |
| 1303F | Number of Components | | | 2800 | 671 |
| 1303G | Sum of Prefix Sums | | | 2700 | 1.1k |
| 1302A | Nash equilibrium | | | unrated | 299 |
| 1302B | DAG | | | unrated | 156 |
| 1302C | Segment tree or Fenwick? | | | unrated | 388 |
| 1302D | Dijkstra | | | unrated | 98 |
| 1302E | Amazing bitset | | | unrated | 51 |
| 1302F | Keep talking and nobody explodes -- easy | | | unrated | 77 |
| 1302G | Keep talking and nobody explodes -- medium | | | unrated | 24 |
| 1302H | Who needs suffix structures? | | | unrated | 11 |
| 1302I | Deja vu | | | unrated | 8 |
| 1302J | Keep talking and nobody explodes -- hard | | | unrated | 12 |
| 1301A | Three Strings | | | 800 | 20.2k |
| 1301B | Motarack's Birthday | | | 1500 | 15.2k |
| 1301C | Ayoub's function | | | 1700 | 10k |
| 1301D | Time to Run | | | 2000 | 4.3k |
| 1301E | Nanosoft | | | 2500 | 1.7k |
| 1301F | Super Jaber | | | 2600 | 1.5k |
| 1300A | Non-zero | | | 800 | 21.8k |
| 1300B | Assigning to Classes | | | 1000 | 26.3k |
| 1299A | Anu Has a Function | | | 1500 | 12.7k |
| 1299B | Aerodynamic | | | 1800 | 5.7k |
| 1299C | Water Balance | | | 2100 | 4.4k |
| 1299D | Around the World | | | 3000 | 652 |
| 1299E | So Mean | | | 3400 | 249 |
| 1297A | Likes Display | | | unrated | 958 |
| 1297B | Cartoons | | | unrated | 433 |
| 1297C | Dream Team | | | unrated | 414 |
| 1297D | Bonus Distribution | | | unrated | 274 |
| 1297E | Modernization of Treeland | | | unrated | 219 |
| 1297F | Movie Fan | | | unrated | 127 |
| 1297G | M-numbers | | | unrated | 78 |
| 1297H | Paint the String | | | unrated | 53 |
| 1297I | Falling Blocks | | | unrated | 38 |
| 1296A | Array with Odd Sum | | | 800 | 49.2k |
| 1296B | Food Buying | | | 900 | 32.9k |
| 1296C | Yet Another Walking Robot | | | 1500 | 15.8k |
| 1296D | Fight with Monsters | | | 1500 | 15.2k |
| 1296E1 | String Coloring (easy version) | | | 1800 | 8.3k |
| 1296E2 | String Coloring (hard version) | | | 2000 | 5.5k |
| 1296F | Berland Beauty | | | 2100 | 3.1k |
| 1295A | Display The Number | | | 900 | 24.4k |
| 1295B | Infinite Prefixes | | | 1700 | 10k |
| 1295C | Obtain The String | | | 1600 | 14k |
| 1295D | Same GCDs | | | 1800 | 10.4k |
| 1295E | Permutation Separation | | | 2200 | 2.9k |
| 1295F | Good Contest | | | 2700 | 1.6k |
| 1294A | Collecting Coins | | | 800 | 54.4k |
| 1294B | Collecting Packages | | | 1200 | 23.1k |
| 1294C | Product of Three Numbers | | | 1300 | 48.5k |
| 1294D | MEX maximizing | | | 1600 | 12.8k |
| 1294E | Obtain a Permutation | | | 1900 | 5.3k |
| 1294F | Three Paths on a Tree | | | 2000 | 7.2k |
| 1293A | ConneR and the A.R.C. Markland-N | | | 1100 | 16.2k |
| 1293B | JOE is on TV! | | | 1000 | 22.4k |
| 1292A | NEKO's Maze Game | | | 1400 | 14k |
| 1292B | Aroma's Search | | | 1700 | 6.8k |
| 1292C | Xenon's Attack on the Gangs | | | 2300 | 2.4k |
| 1292D | Chaotic V. | | | 2700 | 1.1k |
| 1292E | Rin and The Unknown Flower | | | 3500 | 469 |
| 1292F | Nora's Toy Boxes | | | 3500 | 428 |
| 1291A | Even But Not Even | | | 900 | 20.9k |
| 1291B | Array Sharpening | | | 1300 | 15.5k |
| 1291F | Coffee Varieties (easy version) | | | 2800 | 760 |
| 1290A | Mind Control | | | 1600 | 9k |
| 1290B | Irreducible Anagrams | | | 1800 | 7.4k |
| 1290C | Prefix Enlightenment | | | 2400 | 2.1k |
| 1290D | Coffee Varieties (hard version) | | | 3000 | 977 |
| 1290E | Cartesian Tree | | | 3300 | 692 |
| 1290F | Making Shapes | | | 3500 | 607 |
| 1288A | Deadline | | | 1100 | 19.4k |
| 1288B | Yet Another Meme Problem | | | 1100 | 17.9k |
| 1288C | Two Arrays | | | 1600 | 15.8k |
| 1288D | Minimax Problem | | | 2000 | 8.7k |
| 1288E | Messenger Simulator | | | 2000 | 4.2k |
| 1288F | Red-Blue Graph | | | 2900 | 701 |
| 1287A | Angry Students | | | 800 | 23k |
| 1287B | Hyperset | | | 1500 | 9.9k |
| 1286A | Garland | | | 1800 | 9.8k |
| 1286B | Numbers on Tree | | | 1800 | 5.7k |
| 1286C1 | Madhouse (Easy version) | | | 2400 | 1.6k |
| 1286C2 | Madhouse (Hard version) | | | 2800 | 767 |
| 1286D | LCC | | | 3100 | 918 |
| 1286E | Fedya the Potter Strikes Back | | | 3200 | 687 |
| 1286F | Harry The Potter | | | 3100 | 456 |
| 1285A | Mezo Playing Zoma | | | 800 | 30.1k |
| 1285B | Just Eat It! | | | 1300 | 32.5k |