| 415B | Mashmokh and Tokens | | | 1500 | 6.7k |
| 414A | Mashmokh and Numbers | | | 1500 | 10.6k |
| 414B | Mashmokh and ACM | | | 1400 | 30.5k |
| 414C | Mashmokh and Reverse Operation | | | 2100 | 2.4k |
| 414D | Mashmokh and Water Tanks | | | 2300 | 777 |
| 414E | Mashmokh's Designed Problem | | | 3200 | 254 |
| 413A | Data Recovery | | | 1200 | 3k |
| 413B | Spyke Chatting | | | 1300 | 1.9k |
| 413C | Jeopardy! | | | 1400 | 2.7k |
| 413D | 2048 | | | 2000 | 937 |
| 413E | Maze 2D | | | 2200 | 875 |
| 412A | Poster | | | 900 | 5.1k |
| 412B | Network Configuration | | | 900 | 6.5k |
| 412C | Pattern | | | 1200 | 4.3k |
| 412D | Giving Awards | | | 2000 | 2.5k |
| 412E | E-mail Addresses | | | 1900 | 945 |
| 411A | Password Check | | | 800 | 8.2k |
| 411B | Multi-core Processor | | | 1600 | 1.4k |
| 411C | Kicker | | | 1700 | 1.3k |
| 409A | The Great Game | | | 1700 | 2.6k |
| 409B | Mysterious Language | | | 1700 | 1.4k |
| 409C | Magnum Opus | | | 1700 | 2.1k |
| 409D | Big Data | | | 1700 | 1.8k |
| 409E | Dome | | | 1800 | 621 |
| 409F | 000001 | | | 1900 | 2.2k |
| 409G | On a plane | | | 2200 | 575 |
| 409H | A + B Strikes Back | | | 1500 | 9.6k |
| 409I | Feed the Golorp | | | 2400 | 169 |
| 408A | Line to Cashier | | | 900 | 12.1k |
| 408B | Garland | | | 1200 | 10.4k |
| 407A | Triangle | | | 1600 | 5.2k |
| 407B | Long Path | | | 1600 | 7.2k |
| 407C | Curious Array | | | 2500 | 1.2k |
| 407D | Largest Submatrix 3 | | | 2700 | 840 |
| 407E | k-d-sequence | | | 3100 | 1.3k |
| 406D | Hill Climbing | | | 2200 | 1.3k |
| 406E | Hamming Triples | | | 2800 | 365 |
| 405A | Gravity Flip | | | 900 | 129.9k |
| 405B | Domino Effect | | | 1100 | 6.1k |
| 405C | Unusual Product | | | 1600 | 5k |
| 405D | Toy Sum | | | 1700 | 3.3k |
| 405E | Graph Cutting | | | 2300 | 1.7k |
| 404A | Valera and X | | | 1000 | 26.4k |
| 404B | Marathon | | | 1500 | 3.1k |
| 404C | Restore Graph | | | 1800 | 5.9k |
| 404D | Minesweeper 1D | | | 1900 | 2.5k |
| 404E | Maze 1D | | | 2200 | 664 |
| 403D | Beautiful Pairs of Numbers | | | 2300 | 1.3k |
| 403E | Two Rooted Trees | | | 2900 | 276 |
| 402A | Nuts | | | 1100 | 4.9k |
| 402B | Trees in a Row | | | 1400 | 4k |
| 402C | Searching for Graph | | | 1500 | 6.4k |
| 402D | Upgrading Array | | | 1800 | 2.8k |
| 402E | Strictly Positive Matrix | | | 2200 | 2.4k |
| 401A | Vanya and Cards | | | 800 | 17.5k |
| 401B | Sereja and Contests | | | 1200 | 4.6k |
| 401C | Team | | | 1400 | 22k |
| 401D | Roman and Numbers | | | 2000 | 4.7k |
| 400A | Inna and Choose Options | | | 1000 | 6.9k |
| 400B | Inna and New Matrix of Candies | | | 1200 | 8.7k |
| 400C | Inna and Huge Candy Matrix | | | 1500 | 3k |
| 400D | Dima and Bacteria | | | 2000 | 3.3k |
| 400E | Inna and Binary Logic | | | 2100 | 1.1k |
| 399A | Pages | | | unrated | 4.2k |
| 399B | Red and Blue Balls | | | unrated | 1.9k |
| 398A | Cards | | | unrated | 967 |
| 398B | Painting The Wall | | | unrated | 1.2k |
| 398C | Tree and Array | | | unrated | 222 |
| 398D | Instant Messanger | | | unrated | 1.3k |
| 398E | Sorting Permutations | | | unrated | 124 |
| 397A | On Segment's Own Points | | | unrated | 2.7k |
| 397B | On Corruption and Numbers | | | unrated | 836 |
| 396A | On Number of Decompositions into Multipliers | | | unrated | 1.7k |
| 396B | On Sum of Fractions | | | unrated | 1.2k |
| 396C | On Changing Tree | | | unrated | 1.9k |
| 396D | On Sum of Number of Inversions in Permutations | | | unrated | 465 |
| 396E | On Iteration of One Well-Known Function | | | unrated | 167 |
| 394A | Counting Sticks | | | unrated | 2.7k |
| 394B | Very Beautiful Number | | | unrated | 628 |
| 394C | Dominoes | | | unrated | 561 |
| 394D | Physical Education and Buns | | | unrated | 300 |
| 394E | Lightbulb for Minister | | | unrated | 134 |
| 393A | Nineteen | | | unrated | 7k |
| 393B | Three matrices | | | unrated | 2.1k |
| 392A | Blocked Points | | | unrated | 1k |
| 392B | Tower of Hanoi | | | unrated | 1.1k |
| 392C | Yet Another Number Sequence | | | unrated | 688 |
| 392D | Three Arrays | | | unrated | 242 |
| 392E | Deleting Substrings | | | unrated | 188 |
| 391A | Genetic Engineering | | | unrated | 1.8k |
| 391B | Word Folding | | | unrated | 444 |
| 391C1 | The Tournament | | | unrated | 214 |
| 391C2 | The Tournament | | | unrated | 156 |
| 391C3 | The Tournament | | | unrated | 180 |
| 391D1 | Supercollider | | | unrated | 295 |
| 391D2 | Supercollider | | | unrated | 218 |
| 391E1 | Three Trees | | | unrated | 137 |
| 391E2 | Three Trees | | | unrated | 191 |
| 391F1 | Stock Trading | | | unrated | 228 |
| 391F2 | Stock Trading | | | unrated | 123 |