| 301333 | CF249C. Piglet's Birthday | 0 | 0 | 0.000% |
| 301334 | CF249D. Donkey and Stars | 0 | 0 | 0.000% |
| 301335 | CF249E. Endless Matrix | 0 | 0 | 0.000% |
| 301341 | CF251A. Points on Line | 0 | 0 | 0.000% |
| 301342 | CF251B. Playing with Permutations | 0 | 0 | 0.000% |
| 301343 | CF251C. Number Transformation | 0 | 0 | 0.000% |
| 301344 | CF251D. Two Sets | 0 | 0 | 0.000% |
| 301345 | CF251E. Tree and Table | 0 | 0 | 0.000% |
| 301366 | CF256A. Almost Arithmetical Progression | 0 | 0 | 0.000% |
| 301367 | CF256B. Mr. Bender and Square | 0 | 0 | 0.000% |
| 301368 | CF256C. Furlo and Rublo and Game | 0 | 0 | 0.000% |
| 301369 | CF256D. Liars and Serge | 0 | 0 | 0.000% |
| 301370 | CF256E. Lucky Arrays | 0 | 0 | 0.000% |
| 301376 | CF258A. Little Elephant and Bits | 0 | 0 | 0.000% |
| 301377 | CF258B. Little Elephant and Elections | 0 | 0 | 0.000% |
| 301378 | CF258C. Little Elephant and LCM | 0 | 0 | 0.000% |
| 301379 | CF258D. Little Elephant and Broken Sorting | 0 | 0 | 0.000% |
| 301380 | CF258E. Little Elephant and Tree | 0 | 0 | 0.000% |
| 301391 | CF261A. Maxim and Discounts | 0 | 0 | 0.000% |
| 301392 | CF261B. Maxim and Restaurant | 0 | 0 | 0.000% |
| 301393 | CF261C. Maxim and Matrix | 0 | 0 | 0.000% |
| 301394 | CF261D. Maxim and Increasing Subsequence | 0 | 0 | 0.000% |
| 301395 | CF261E. Maxim and Calculator | 0 | 0 | 0.000% |
| 301406 | CF264A. Escape from Stones | 0 | 0 | 0.000% |
| 301407 | CF264B. Good Sequences | 0 | 0 | 0.000% |
| 301408 | CF264C. Choosing Balls | 0 | 0 | 0.000% |
| 301409 | CF264D. Colorful Stones | 0 | 0 | 0.000% |
| 301410 | CF264E. Roadside Trees | 0 | 0 | 0.000% |
| 301429 | CF269A. Magical Boxes | 0 | 0 | 0.000% |
| 301430 | CF269B. Greenhouse Effect | 0 | 0 | 0.000% |
| 301431 | CF269C. Flawed Flow | 0 | 0 | 0.000% |
| 301432 | CF269D. Maximum Waterfall | 0 | 0 | 0.000% |
| 301433 | CF269E. String Theory | 0 | 0 | 0.000% |
| 301449 | CF273A. Dima and Staircase | 0 | 0 | 0.000% |
| 301450 | CF273B. Dima and Two Sequences | 0 | 0 | 0.000% |
| 301451 | CF273C. Dima and Horses | 0 | 0 | 0.000% |
| 301452 | CF273D. Dima and Figure | 0 | 0 | 0.000% |
| 301453 | CF273E. Dima and Game | 0 | 0 | 0.000% |
| 301454 | CF274A. k-Multiple Free Set | 0 | 0 | 0.000% |
| 301455 | CF274B. Zero Tree | 0 | 0 | 0.000% |
| 301456 | CF274C. The Last Hole! | 0 | 0 | 0.000% |
| 301457 | CF274D. Lovely Matrix | 0 | 0 | 0.000% |
| 301458 | CF274E. Mirror Room | 0 | 0 | 0.000% |
| 301469 | CF277A. Learning Languages | 0 | 0 | 0.000% |
| 301470 | CF277B. Set of Points | 0 | 0 | 0.000% |
| 301471 | CF277C. Game | 0 | 0 | 0.000% |
| 301472 | CF277D. Google Code Jam | 0 | 0 | 0.000% |
| 301473 | CF277E. Binary Tree on Plane | 0 | 0 | 0.000% |
| 301484 | CF280A. Rectangle Puzzle | 0 | 0 | 0.000% |
| 301485 | CF280B. Maximum Xor Secondary | 0 | 0 | 0.000% |
| 301486 | CF280C. Game on Tree | 0 | 0 | 0.000% |
| 301487 | CF280D. k-Maximum Subsequence Sum | 0 | 0 | 0.000% |
| 301488 | CF280E. Sequence Transformation | 0 | 0 | 0.000% |
| 301499 | CF283A. Cows and Sequence | 0 | 0 | 0.000% |
| 301500 | CF283B. Cow Program | 0 | 0 | 0.000% |
| 301501 | CF283C. Coin Troubles | 0 | 0 | 0.000% |
| 301502 | CF283D. Cows and Cool Sequences | 0 | 0 | 0.000% |
| 301503 | CF283E. Cow Tennis Tournament | 0 | 0 | 0.000% |
| 301514 | CF286A. Lucky Permutation | 0 | 0 | 0.000% |
| 301515 | CF286B. Shifting | 0 | 0 | 0.000% |
| 301516 | CF286C. Main Sequence | 0 | 0 | 0.000% |
| 301517 | CF286D. Tourists | 0 | 0 | 0.000% |
| 301518 | CF286E. Ladies' Shop | 0 | 0 | 0.000% |
| 301524 | CF288A. Polo the Penguin and Strings | 0 | 0 | 0.000% |
| 301525 | CF288B. Polo the Penguin and Houses | 0 | 0 | 0.000% |
| 301526 | CF288C. Polo the Penguin and XOR operation | 0 | 0 | 0.000% |
| 301527 | CF288D. Polo the Penguin and Trees | 0 | 0 | 0.000% |
| 301528 | CF288E. Polo the Penguin and Lucky Numbers | 0 | 0 | 0.000% |
| 301560 | CF295A. Greg and Array | 0 | 0 | 0.000% |
| 301561 | CF295B. Greg and Graph | 0 | 0 | 0.000% |
| 301562 | CF295C. Greg and Friends | 0 | 0 | 0.000% |
| 301563 | CF295D. Greg and Caves | 0 | 0 | 0.000% |
| 301564 | CF295E. Yaroslav and Points | 0 | 0 | 0.000% |
| 301570 | CF297A. Parity Game | 0 | 0 | 0.000% |
| 301571 | CF297B. Fish Weight | 0 | 0 | 0.000% |
| 301572 | CF297C. Splitting the Uniqueness | 0 | 0 | 0.000% |
| 301573 | CF297D. Color the Carpet | 0 | 0 | 0.000% |
| 301574 | CF297E. Mystic Carvings | 0 | 0 | 0.000% |
| 301590 | CF301A. Yaroslav and Sequence | 0 | 0 | 0.000% |
| 301591 | CF301B. Yaroslav and Time | 0 | 0 | 0.000% |
| 301592 | CF301C. Yaroslav and Algorithm | 0 | 0 | 0.000% |
| 301593 | CF301D. Yaroslav and Divisors | 0 | 0 | 0.000% |
| 301594 | CF301E. Yaroslav and Arrangements | 0 | 0 | 0.000% |
| 301600 | CF303A. Lucky Permutation Triple | 0 | 0 | 0.000% |
| 301601 | CF303B. Rectangle Puzzle II | 0 | 0 | 0.000% |
| 301602 | CF303C. Minimum Modular | 0 | 0 | 0.000% |
| 301603 | CF303D. Rotatable Number | 0 | 0 | 0.000% |
| 301604 | CF303E. Random Ranking | 0 | 0 | 0.000% |
| 301624 | CF309A. Morning run | 0 | 0 | 0.000% |
| 301625 | CF309B. Context Advertising | 0 | 0 | 0.000% |
| 301626 | CF309C. Memory for Arrays | 0 | 0 | 0.000% |
| 301627 | CF309D. Tennis Rackets | 0 | 0 | 0.000% |
| 301628 | CF309E. Sheep | 0 | 0 | 0.000% |
| 301629 | CF311A. The Closest Pair | 0 | 0 | 0.000% |
| 301630 | CF311B. Cats Transport | 0 | 0 | 0.000% |
| 301631 | CF311C. Fetch the Treasure | 0 | 0 | 0.000% |
| 301632 | CF311D. Interval Cubing | 0 | 0 | 0.000% |
| 301633 | CF311E. Biologist | 0 | 0 | 0.000% |
| 301644 | CF314A. Sereja and Contest | 0 | 0 | 0.000% |
| 301645 | CF314B. Sereja and Periods | 0 | 0 | 0.000% |