| 304453 | CF850A. Five Dimensional Points | 0 | 0 | 0.000% |
| 304455 | CF850C. Arpa and a game with Mojtaba | 0 | 0 | 0.000% |
| 304456 | CF850D. Tournament Construction | 0 | 0 | 0.000% |
| 304457 | CF850E. Random Elections | 0 | 0 | 0.000% |
| 304458 | CF850F. Rainbow Balls | 0 | 0 | 0.000% |
| 304459 | CF851A. Arpa and a research in Mexican wave | 0 | 0 | 0.000% |
| 304460 | CF851B. Arpa and an exam about geometry | 0 | 0 | 0.000% |
| 304461 | CF851C. Five Dimensional Points | 0 | 0 | 0.000% |
| 304463 | CF851E. Arpa and a game with Mojtaba | 0 | 0 | 0.000% |
| 304464 | CF852A. Digits | 0 | 0 | 0.000% |
| 304465 | CF852B. Neural Network country | 0 | 0 | 0.000% |
| 304469 | CF852F. Product transformation | 0 | 0 | 0.000% |
| 304477 | CF853E. Lada Malina | 0 | 0 | 0.000% |
| 304478 | CF854A. Fraction | 0 | 0 | 0.000% |
| 304479 | CF854B. Maxim Buys an Apartment | 0 | 0 | 0.000% |
| 304483 | CF855A. Tom Riddle's Diary | 0 | 0 | 0.000% |
| 304484 | CF855B. Marvolo Gaunt's Ring | 0 | 0 | 0.000% |
| 304485 | CF855C. Helga Hufflepuff's Cup | 0 | 0 | 0.000% |
| 304486 | CF855D. Rowena Ravenclaw's Diadem | 0 | 0 | 0.000% |
| 304487 | CF855E. Salazar Slytherin's Locket | 0 | 0 | 0.000% |
| 304488 | CF855F. Nagini | 0 | 0 | 0.000% |
| 304489 | CF855G. Harry Vs Voldemort | 0 | 0 | 0.000% |
| 304493 | CF856D. Masha and Cactus | 0 | 0 | 0.000% |
| 304496 | CF858A. k-rounding | 0 | 0 | 0.000% |
| 304503 | CF859B. Lazy Security Guard | 0 | 0 | 0.000% |
| 304508 | CF859G. Circle of Numbers | 0 | 0 | 0.000% |
| 304514 | CF861A. k-rounding | 0 | 0 | 0.000% |
| 304520 | CF862A. Mahmoud and Ehab and the MEX | 0 | 0 | 0.000% |
| 304521 | CF862B. Mahmoud and Ehab and the bipartiteness | 0 | 0 | 0.000% |
| 304522 | CF862C. Mahmoud and Ehab and the xor | 0 | 0 | 0.000% |
| 304523 | CF862D. Mahmoud and Ehab and the binary string | 0 | 0 | 0.000% |
| 304524 | CF862E. Mahmoud and Ehab and the function | 0 | 0 | 0.000% |
| 304525 | CF862F. Mahmoud and Ehab and the final stage | 0 | 0 | 0.000% |
| 304535 | CF864C. Bus | 0 | 0 | 0.000% |
| 304536 | CF864D. Make a Permutation! | 0 | 0 | 0.000% |
| 304543 | CF865E. Hex Dyslexia | 0 | 0 | 0.000% |
| 304544 | CF865F. Egg Roulette | 0 | 0 | 0.000% |
| 304545 | CF865G. Flowers and Chocolate | 0 | 0 | 0.000% |
| 304546 | CF866A. Save the problem! | 0 | 0 | 0.000% |
| 304552 | CF866G. Flowers and Chocolate | 0 | 0 | 0.000% |
| 304554 | CF867B. Save the problem! | 0 | 0 | 0.000% |
| 304561 | CF868C. Qualification Rounds | 0 | 0 | 0.000% |
| 304562 | CF868D. Huge Strings | 0 | 0 | 0.000% |
| 304563 | CF868E. Policeman and a Tree | 0 | 0 | 0.000% |
| 304565 | CF868G. El Toll Caves | 0 | 0 | 0.000% |
| 304567 | CF869B. The Eternal Immortality | 0 | 0 | 0.000% |
| 304568 | CF869C. The Intriguing Obsession | 0 | 0 | 0.000% |
| 304572 | CF870B. Maximum of Maximums of Minimums | 0 | 0 | 0.000% |
| 304573 | CF870C. Maximum splitting | 0 | 0 | 0.000% |
| 304575 | CF870E. Points, Lines and Ready-made Titles | 0 | 0 | 0.000% |
| 304577 | CF871A. Maximum splitting | 0 | 0 | 0.000% |
| 304579 | CF871C. Points, Lines and Ready-made Titles | 0 | 0 | 0.000% |
| 304583 | CF872B. Maximum of Maximums of Minimums | 0 | 0 | 0.000% |
| 304584 | CF872C. Maximum splitting | 0 | 0 | 0.000% |
| 304586 | CF872E. Points, Lines and Ready-made Titles | 0 | 0 | 0.000% |
| 304589 | CF873C. Strange Game On Matrix | 0 | 0 | 0.000% |
| 304593 | CF875A. Classroom Watch | 0 | 0 | 0.000% |
| 304596 | CF875D. High Cry | 0 | 0 | 0.000% |
| 304599 | CF876A. Trip For Meal | 0 | 0 | 0.000% |
| 304600 | CF876B. Divisiblity of Differences | 0 | 0 | 0.000% |
| 304601 | CF876C. Classroom Watch | 0 | 0 | 0.000% |
| 304609 | CF877E. Danil and a Part-time Job | 0 | 0 | 0.000% |
| 304611 | CF878A. Short Program | 0 | 0 | 0.000% |
| 304612 | CF878B. Teams Formation | 0 | 0 | 0.000% |
| 304614 | CF878D. Magic Breeding | 0 | 0 | 0.000% |
| 304618 | CF879C. Short Program | 0 | 0 | 0.000% |
| 304619 | CF879D. Teams Formation | 0 | 0 | 0.000% |
| 304621 | CF883A. Automatic Door | 0 | 0 | 0.000% |
| 304636 | CF884C. Bertown Subway | 0 | 0 | 0.000% |
| 304638 | CF884E. Binary Matrix | 0 | 0 | 0.000% |
| 304644 | CF886E. Maximum Element | 0 | 0 | 0.000% |
| 304647 | CF887B. Cubes for Masha | 0 | 0 | 0.000% |
| 304652 | CF888A. Local Extrema | 0 | 0 | 0.000% |
| 304655 | CF888D. Almost Identity Permutations | 0 | 0 | 0.000% |
| 304656 | CF888E. Maximum Subsequence | 0 | 0 | 0.000% |
| 304658 | CF888G. Xor-MST | 0 | 0 | 0.000% |
| 304661 | CF889C. Maximum Element | 0 | 0 | 0.000% |
| 304663 | CF889E. Mod Mod Mod | 0 | 0 | 0.000% |
| 304668 | CF890E. Maximum Element | 0 | 0 | 0.000% |
| 304670 | CF891A. Pride | 0 | 0 | 0.000% |
| 304674 | CF891E. Lust | 0 | 0 | 0.000% |
| 304684 | CF893E. Counting Arrays | 0 | 0 | 0.000% |
| 304687 | CF894B. Ralph And His Magic Field | 0 | 0 | 0.000% |
| 304688 | CF894C. Marco and GCD Sequence | 0 | 0 | 0.000% |
| 304692 | CF895B. XK Segments | 0 | 0 | 0.000% |
| 304693 | CF895C. Square Subsets | 0 | 0 | 0.000% |
| 304694 | CF895D. String Mark | 0 | 0 | 0.000% |
| 304699 | CF896D. Nephren Runs a Cinema | 0 | 0 | 0.000% |
| 304703 | CF897C. Nephren gives a riddle | 0 | 0 | 0.000% |
| 304706 | CF898A. Rounding | 0 | 0 | 0.000% |
| 304711 | CF898F. Restoring the Expression | 0 | 0 | 0.000% |
| 304712 | CF899A. Splitting in Teams | 0 | 0 | 0.000% |
| 304714 | CF899C. Dividing the numbers | 0 | 0 | 0.000% |
| 304715 | CF899D. Shovel Sale | 0 | 0 | 0.000% |
| 304719 | CF900B. Position in Fraction | 0 | 0 | 0.000% |
| 304720 | CF900C. Remove Extra One | 0 | 0 | 0.000% |
| 304721 | CF900D. Unusual Sequences | 0 | 0 | 0.000% |
| 304722 | CF900E. Maximum Questions | 0 | 0 | 0.000% |
| 304724 | CF901B. GCD of Polynomials | 0 | 0 | 0.000% |
| 304727 | CF901E. Cyclic Cipher | 0 | 0 | 0.000% |