| 757D | Felicity's Big Secret Revealed | | | 2200 | 1.6k |
| 755F | PolandBall and Gifts | | | 2600 | 2k |
| 754E | Dasha and cyclic table | | | 2600 | 601 |
| 750G | New Year and Binary Tree Paths | | | 3200 | 617 |
| 744B | Hongcow's Game | | | 1900 | 2k |
| 744C | Hongcow Buys a Deck of Cards | | | 2400 | 1.4k |
| 743B | Chloe and the sequence | | | 1200 | 16.2k |
| 743E | Vladik and cards | | | 2200 | 1.7k |
| 734F | Anton and School | | | 2500 | 1.4k |
| 724G | Xor-matic Number of the Graph | | | 2600 | 1.6k |
| 718E | Matvey's Birthday | | | 3300 | 478 |
| 707D | Persistent Bookcase | | | 2200 | 3.1k |
| 706D | Vasiliy's Multiset | | | 1800 | 13.1k |
| 698C | LRU | | | 2400 | 1.5k |
| 685E | Travelling Through the Snow Queen's Kingdom | | | 2800 | 660 |
| 678E | Another Sith Tournament | | | 2200 | 2.8k |
| 677C | Vanya and Label | | | 1500 | 7k |
| 662A | Gambling Nim | | | 2400 | 683 |
| 662C | Binary Table | | | 2600 | 2.6k |
| 633G | Yash And Trees | | | 2800 | 934 |
| 620E | New Year Tree | | | 2100 | 7.5k |
| 611B | New Year and Old Property | | | 1300 | 11.2k |
| 599E | Sandy and Nuts | | | 2600 | 820 |
| 582E | Boolean Function | | | 3000 | 685 |
| 581D | Three Logos | | | 1700 | 4.9k |
| 580D | Kefa and Dishes | | | 1800 | 12.4k |
| 579A | Raising Bacteria | | | 1000 | 81.4k |
| 575C | Party | | | 2700 | 240 |
| 570D | Tree Requests | | | 2200 | 9.4k |
| 566E | Restoring Map | | | 3200 | 719 |
| 550B | Preparing Olympiad | | | 1400 | 28.6k |
| 547C | Mike and Foam | | | 2300 | 3.5k |
| 543C | Remembering Strings | | | 2500 | 1.6k |
| 535B | Tavas and SaDDas | | | 1100 | 27k |
| 534F | Simplified Nonogram | | | 2400 | 556 |
| 528D | Fuzzy Search | | | 2500 | 3k |
| 525E | Anya and Cubes | | | 2100 | 4.4k |
| 513B2 | Permutations | | | 1800 | 2.9k |
| 513C | Second price auction | | | 2000 | 1.7k |
| 510D | Fox And Jumping | | | 1900 | 6.5k |
| 504D | Misha and XOR | | | 2700 | 380 |
| 484A | Bits | | | 1700 | 13.8k |
| 482C | Game with Strings | | | 2600 | 1k |
| 476B | Dreamoon and WiFi | | | 1300 | 38k |
| 472G | Design Tutorial: Increase the Constraints | | | 2800 | 497 |
| 467B | Fedor and New Game | | | 1100 | 43.7k |
| 453B | Little Pony and Harmony Chest | | | 2000 | 5.6k |
| 451E | Devu and Flowers | | | 2300 | 4.7k |
| 449D | Jzzhu and Numbers | | | 2400 | 6.4k |
| 442A | Borya and Hanabi | | | 1700 | 2.4k |
| 441E | Valera and Number | | | 2400 | 835 |
| 437B | The Child and Set | | | 1500 | 10.5k |
| 431D | Random Task | | | 2100 | 3k |
| 429C | Guess the Tree | | | 2300 | 1.1k |
| 425B | Sereja and Table | | | 2200 | 1.4k |
| 417D | Cunning Gena | | | 1900 | 3k |
| 413D | 2048 | | | 2000 | 936 |
| 401D | Roman and Numbers | | | 2000 | 4.7k |
| 400E | Inna and Binary Logic | | | 2100 | 1.1k |
| 388B | Fox and Minimal path | | | 1900 | 2.6k |
| 385D | Bear and Floodlight | | | 2200 | 972 |
| 379D | New Year Letter | | | 2000 | 1.7k |
| 377C | Captains Mode | | | 2200 | 1.4k |
| 375C | Circling Round Treasures | | | 2600 | 681 |
| 367D | Sereja and Sets | | | 2400 | 719 |
| 356D | Bags and Coins | | | 2700 | 1.1k |
| 354B | Game with Strings | | | 2400 | 527 |
| 342D | Xenia and Dominoes | | | 2100 | 585 |
| 336E | Vasily the Bear and Painting Square | | | 2700 | 158 |
| 333D | Characteristics of Rectangles | | | 2100 | 2.3k |
| 333E | Summer Earnings | | | 2500 | 1.3k |
| 327E | Axis Walking | | | 2300 | 1.6k |
| 309C | Memory for Arrays | | | 1900 | 1.5k |
| 291C | Network Mask | | | 1600 | 1.9k |
| 285D | Permutation Sum | | | 1900 | 1.7k |
| 282E | Sausage Maximization | | | 2200 | 4.7k |
| 279D | The Minimum Number of Variables | | | 2200 | 884 |
| 276D | Little Girl and Maximum XOR | | | 1700 | 16.8k |
| 251D | Two Sets | | | 2700 | 743 |
| 244B | Undoubtedly Lucky Numbers | | | 1600 | 5k |
| 243A | The Brand New Function | | | 1600 | 4.5k |
| 242E | XOR on Segment | | | 2000 | 12.3k |
| 241B | Friends | | | 2700 | 1k |
| 232B | Table | | | 1900 | 1.7k |
| 232E | Quick Tortoise | | | 3000 | 1k |
| 225D | Snake | | | 2200 | 1.1k |
| 224B | Array | | | 1500 | 8.1k |
| 217D | Bitonix' Patrol | | | 2900 | 282 |
| 212B | Polycarpus is Looking for Good Substrings | | | 2300 | 399 |
| 202A | LLPS | | | 800 | 20.1k |
| 201D | Brand New Problem | | | 2600 | 493 |
| 165E | Compatible Numbers | | | 2200 | 9.9k |
| 152E | Garden | | | 2500 | 610 |
| 114B | PFAST Inc. | | | 1500 | 4.3k |
| 111C | Petya and Spiders | | | 2100 | 1.6k |
| 107C | Arrangement | | | 2400 | 503 |
| 97D | Robot in Basement | | | 2700 | 386 |
| 96B | Lucky Numbers (easy) | | | 1300 | 19.6k |
| 83E | Two Subsequences | | | 2800 | 585 |
| 79D | Password | | | 2800 | 1.4k |