| 292D | Connected Components | | | 1900 | 2.8k |
| 292E | Copying Data | | | 1900 | 5k |
| 291A | Spyke Talks | | | 800 | 6.5k |
| 291B | Command Line Arguments | | | 1300 | 3.1k |
| 291C | Network Mask | | | 1600 | 1.9k |
| 291D | Parallel Programming | | | 1600 | 1.5k |
| 291E | Tree-String Problem | | | 2000 | 1.6k |
| 290A | Mysterious strings | | | 1400 | 3.3k |
| 290B | QR code | | | 1500 | 2.6k |
| 290C | WTF? | | | 1700 | 1.7k |
| 290D | Orange | | | 1400 | 1.9k |
| 290E | HQ | | | 2500 | 238 |
| 290F | Greedy Petya | | | 2800 | 159 |
| 289A | Polo the Penguin and Segments | | | 1100 | 10.5k |
| 289B | Polo the Penguin and Matrix | | | 1400 | 19.2k |
| 288A | Polo the Penguin and Strings | | | 1300 | 6.8k |
| 288B | Polo the Penguin and Houses | | | 1500 | 3.2k |
| 288C | Polo the Penguin and XOR operation | | | 1700 | 2.5k |
| 288D | Polo the Penguin and Trees | | | 2400 | 859 |
| 288E | Polo the Penguin and Lucky Numbers | | | 2800 | 379 |
| 287A | IQ Test | | | 1100 | 22.2k |
| 287B | Pipeline | | | 1700 | 11.8k |
| 286A | Lucky Permutation | | | 1400 | 3.5k |
| 286B | Shifting | | | 2200 | 1.2k |
| 286C | Main Sequence | | | 2100 | 1.6k |
| 286D | Tourists | | | 2600 | 501 |
| 286E | Ladies' Shop | | | 2800 | 1.1k |
| 285A | Slightly Decreasing Permutations | | | 1100 | 14.2k |
| 285B | Find Marble | | | 1200 | 15.8k |
| 285C | Building Permutation | | | 1200 | 26.6k |
| 285D | Permutation Sum | | | 1900 | 1.7k |
| 285E | Positions in Permutations | | | 2600 | 1.4k |
| 284A | Cows and Primitive Roots | | | 1400 | 7.4k |
| 284B | Cows and Poker Game | | | 1000 | 7.4k |
| 283A | Cows and Sequence | | | 1600 | 6.9k |
| 283B | Cow Program | | | 1700 | 4k |
| 283C | Coin Troubles | | | 2100 | 1.6k |
| 283D | Cows and Cool Sequences | | | 2400 | 718 |
| 283E | Cow Tennis Tournament | | | 2800 | 948 |
| 282A | Bit++ | | | 800 | 370.6k |
| 282B | Painting Eggs | | | 1500 | 14.1k |
| 282C | XOR and OR | | | 1500 | 10.3k |
| 282D | Yet Another Number Game | | | 2100 | 1.7k |
| 282E | Sausage Maximization | | | 2200 | 4.7k |
| 281A | Word Capitalization | | | 800 | 278.7k |
| 281B | Nearest Fraction | | | 1700 | 3.4k |
| 280A | Rectangle Puzzle | | | 2000 | 1.6k |
| 280B | Maximum Xor Secondary | | | 1800 | 5.4k |
| 280C | Game on Tree | | | 2200 | 5.4k |
| 280D | k-Maximum Subsequence Sum | | | 2800 | 1.8k |
| 280E | Sequence Transformation | | | 3000 | 338 |
| 279A | Point on Spiral | | | 1400 | 6k |
| 279B | Books | | | 1400 | 76.9k |
| 279C | Ladder | | | 1700 | 9k |
| 279D | The Minimum Number of Variables | | | 2200 | 884 |
| 279E | Beautiful Decomposition | | | 1900 | 1.6k |
| 278A | Circle Line | | | 800 | 12.9k |
| 278B | New Problem | | | 1500 | 3.6k |
| 277A | Learning Languages | | | 1400 | 22.1k |
| 277B | Set of Points | | | 2300 | 863 |
| 277C | Game | | | 2400 | 510 |
| 277D | Google Code Jam | | | 2800 | 421 |
| 277E | Binary Tree on Plane | | | 2400 | 1.5k |
| 276A | Lunch Rush | | | 900 | 30.4k |
| 276B | Little Girl and Game | | | 1300 | 32.7k |
| 276C | Little Girl and Maximum Sum | | | 1500 | 42k |
| 276D | Little Girl and Maximum XOR | | | 1700 | 16.8k |
| 276E | Little Girl and Problem on Trees | | | 2100 | 1.9k |
| 275A | Lights Out | | | 900 | 37.1k |
| 275B | Convex Shape | | | 1700 | 3.1k |
| 274A | k-Multiple Free Set | | | 1500 | 10.9k |
| 274B | Zero Tree | | | 1800 | 5.7k |
| 274C | The Last Hole! | | | 2600 | 395 |
| 274D | Lovely Matrix | | | 2200 | 1.2k |
| 274E | Mirror Room | | | 3000 | 419 |
| 273D | Dima and Figure | | | 2400 | 498 |
| 273E | Dima and Game | | | 2600 | 409 |
| 272A | Dima and Friends | | | 1000 | 28k |
| 272B | Dima and Sequence | | | 1400 | 4.3k |
| 272C | Dima and Staircase | | | 1500 | 7.3k |
| 272D | Dima and Two Sequences | | | 1600 | 2.9k |
| 272E | Dima and Horses | | | 2200 | 1.3k |
| 271A | Beautiful Year | | | 800 | 183.1k |
| 271B | Prime Matrix | | | 1300 | 15.8k |
| 271C | Secret | | | 1500 | 3.2k |
| 271D | Good Substrings | | | 1800 | 14.6k |
| 271E | Three Horses | | | 2200 | 686 |
| 270A | Fancy Fence | | | 1100 | 51.6k |
| 270B | Multithreading | | | 1400 | 4.5k |
| 269A | Magical Boxes | | | 1600 | 3.7k |
| 269B | Greenhouse Effect | | | 1700 | 7.1k |
| 269C | Flawed Flow | | | 2100 | 1.9k |
| 269D | Maximum Waterfall | | | 2600 | 535 |
| 269E | String Theory | | | 3100 | 122 |
| 268A | Games | | | 800 | 106.5k |
| 268B | Buttons | | | 1000 | 36.2k |
| 268C | Beautiful Sets of Points | | | 1500 | 14.7k |
| 268D | Wall Bars | | | 2300 | 633 |
| 268E | Playlist | | | 2100 | 1.2k |
| 267A | Subtractions | | | 900 | 9.8k |