| 571C | CNF 2 | | | 2500 | 757 |
| 571D | Campus | | | 3100 | 1.2k |
| 571E | Geometric Progressions | | | 3200 | 355 |
| 570A | Elections | | | 1100 | 14.4k |
| 570B | Simple Game | | | 1300 | 17k |
| 570C | Replacement | | | 1600 | 9.6k |
| 570D | Tree Requests | | | 2200 | 9.4k |
| 570E | Pig and Palindromes | | | 2300 | 2.2k |
| 569A | Music | | | 1500 | 5.1k |
| 569B | Inventory | | | 1200 | 7.5k |
| 568A | Primes or Palindromes? | | | 1600 | 5.4k |
| 568B | Symmetric and Transitive | | | 1900 | 2.4k |
| 568C | New Language | | | 2600 | 972 |
| 568D | Sign Posts | | | 2800 | 340 |
| 568E | Longest Increasing Subsequence | | | 3000 | 680 |
| 567A | Lineland Mail | | | 900 | 36.4k |
| 567B | Berland National Library | | | 1300 | 8.9k |
| 567C | Geometric Progression | | | 1700 | 10.6k |
| 567D | One-Dimensional Battle Ships | | | 1700 | 5.3k |
| 567E | President and Roads | | | 2200 | 2.3k |
| 567F | Mausoleum | | | 2400 | 663 |
| 566A | Matching Names | | | 2300 | 1.1k |
| 566B | Replicating Processes | | | 2600 | 411 |
| 566C | Logistical Questions | | | 3000 | 966 |
| 566D | Restructuring Company | | | 1900 | 4.1k |
| 566E | Restoring Map | | | 3200 | 719 |
| 566F | Clique in the Divisibility Graph | | | 1500 | 4.4k |
| 566G | Max and Min | | | 2500 | 428 |
| 560A | Currency System in Geraldion | | | 1000 | 20.1k |
| 560B | Gerald is into Art | | | 1200 | 8.3k |
| 559A | Gerald's Hexagon | | | 1600 | 11.1k |
| 559B | Equivalent Strings | | | 1700 | 11.8k |
| 559C | Gerald and Giant Chess | | | 2200 | 8.4k |
| 559D | Randomizer | | | 2800 | 502 |
| 559E | Gerald and Path | | | 3000 | 1.2k |
| 558A | Lala Land and Apple Trees | | | 1100 | 11.1k |
| 558B | Amr and The Large Array | | | 1300 | 8.4k |
| 558C | Amr and Chemistry | | | 1900 | 4.2k |
| 558D | Guess Your Way Out! II | | | 2300 | 1.2k |
| 558E | A Simple Task | | | 2300 | 7.7k |
| 557A | Ilya and Diplomas | | | 1100 | 8.5k |
| 557B | Pasha and Tea | | | 1500 | 7.5k |
| 557C | Arthur and Table | | | 1900 | 4.3k |
| 557D | Vitaly and Cycle | | | 2000 | 2.4k |
| 557E | Ann and Half-Palindrome | | | 2300 | 1.3k |
| 556A | Case of the Zeros and Ones | | | 900 | 47.3k |
| 556B | Case of Fake Numbers | | | 1100 | 8.3k |
| 555A | Case of Matryoshkas | | | 1500 | 6.7k |
| 555B | Case of Fugitive | | | 2000 | 4.1k |
| 555C | Case of Chocolate | | | 2200 | 2.1k |
| 555D | Case of a Top Secret | | | 2500 | 961 |
| 555E | Case of Computer Network | | | 2800 | 3.1k |
| 554A | Kyoya and Photobooks | | | 900 | 14.6k |
| 554B | Ohana Cleans Up | | | 1200 | 11.1k |
| 553A | Kyoya and Colored Balls | | | 1500 | 10.1k |
| 553B | Kyoya and Permutation | | | 1900 | 2.3k |
| 553C | Love Triangles | | | 2200 | 2k |
| 553D | Nudist Beach | | | 2300 | 1.1k |
| 553E | Kyoya and Train | | | 3200 | 730 |
| 552A | Vanya and Table | | | 1000 | 10.3k |
| 552B | Vanya and Books | | | 1200 | 16.2k |
| 552C | Vanya and Scales | | | 1900 | 5.9k |
| 552D | Vanya and Triangles | | | 1900 | 4.9k |
| 552E | Vanya and Brackets | | | 2100 | 1.8k |
| 551A | GukiZ and Contest | | | 800 | 17.9k |
| 551B | ZgukistringZ | | | 1800 | 4.1k |
| 551C | GukiZ hates Boxes | | | 2200 | 4.1k |
| 551D | GukiZ and Binary Operations | | | 2100 | 2.1k |
| 551E | GukiZ and GukiZiana | | | 2500 | 2.3k |
| 550A | Two Substrings | | | 1500 | 44.4k |
| 550B | Preparing Olympiad | | | 1400 | 28.6k |
| 550C | Divisibility by Eight | | | 1500 | 32.7k |
| 550D | Regular Bridge | | | 1900 | 3.8k |
| 550E | Brackets in Implications | | | 2200 | 1.5k |
| 549A | Face Detection | | | 900 | 10.3k |
| 549B | Looksery Party | | | 2300 | 1.6k |
| 549C | The Game Of Parity | | | 2200 | 1.9k |
| 549D | Haar Features | | | 1900 | 2.3k |
| 549E | Sasha Circle | | | 2700 | 179 |
| 549F | Yura and Developers | | | 2800 | 1.1k |
| 549G | Happy Line | | | 2200 | 2.7k |
| 549H | Degenerate Matrix | | | 2100 | 2.1k |
| 548A | Mike and Fax | | | 1100 | 10.4k |
| 548B | Mike and Fun | | | 1400 | 9.1k |
| 547A | Mike and Frog | | | 2200 | 2.8k |
| 547B | Mike and Feet | | | 1900 | 11.5k |
| 547C | Mike and Foam | | | 2300 | 3.5k |
| 547D | Mike and Fish | | | 2600 | 3.2k |
| 547E | Mike and Friends | | | 2800 | 2.7k |
| 546A | Soldier and Bananas | | | 800 | 242.6k |
| 546B | Soldier and Badges | | | 1200 | 18.8k |
| 546C | Soldier and Cards | | | 1400 | 19.6k |
| 546D | Soldier and Number Game | | | 1700 | 14.1k |
| 546E | Soldier and Traveling | | | 2100 | 4.4k |
| 545A | Toy Cars | | | 900 | 12.2k |
| 545B | Equidistant String | | | 1100 | 12.3k |
| 545C | Woodcutters | | | 1500 | 34k |
| 545D | Queue | | | 1300 | 30.2k |
| 545E | Paths and Trees | | | 2000 | 5.8k |
| 544A | Set of Strings | | | 1100 | 8.9k |