| 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% |
| 304462 | CF851D. Arpa and a list of numbers | 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% |
| 304466 | CF852C. Property | 0 | 0 | 0.000% |
| 304467 | CF852D. Exploration plan | 0 | 0 | 0.000% |
| 304468 | CF852E. Casinos and travel | 0 | 0 | 0.000% |
| 304469 | CF852F. Product transformation | 0 | 0 | 0.000% |
| 304470 | CF852G. Bathroom terminal | 0 | 0 | 0.000% |
| 304471 | CF852H. Bob and stages | 0 | 0 | 0.000% |
| 304472 | CF852I. Dating | 0 | 0 | 0.000% |
| 304473 | CF853A. Planning | 0 | 0 | 0.000% |
| 304474 | CF853B. Jury Meeting | 0 | 0 | 0.000% |
| 304475 | CF853C. Boredom | 0 | 0 | 0.000% |
| 304476 | CF853D. Michael and Charging Stations | 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% |
| 304480 | CF854C. Planning | 0 | 0 | 0.000% |
| 304481 | CF854D. Jury Meeting | 0 | 0 | 0.000% |
| 304482 | CF854E. Boredom | 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% |
| 304490 | CF856A. Set Theory | 0 | 0 | 0.000% |
| 304491 | CF856B. Similar Words | 0 | 0 | 0.000% |
| 304492 | CF856C. Eleventh Birthday | 0 | 0 | 0.000% |
| 304493 | CF856D. Masha and Cactus | 0 | 0 | 0.000% |
| 304494 | CF856E. Satellites | 0 | 0 | 0.000% |
| 304495 | CF856F. To Play or not to Play | 0 | 0 | 0.000% |
| 304496 | CF858A. k-rounding | 0 | 0 | 0.000% |
| 304497 | CF858B. Which floor? | 0 | 0 | 0.000% |
| 304498 | CF858C. Did you mean... | 0 | 0 | 0.000% |
| 304499 | CF858D. Polycarp's phone book | 0 | 0 | 0.000% |
| 304500 | CF858E. Tests Renumeration | 0 | 0 | 0.000% |
| 304501 | CF858F. Wizard's Tour | 0 | 0 | 0.000% |
| 304502 | CF859A. Declined Finalists | 0 | 0 | 0.000% |
| 304503 | CF859B. Lazy Security Guard | 0 | 0 | 0.000% |
| 304504 | CF859C. Pie Rules | 0 | 0 | 0.000% |
| 304505 | CF859D. Third Month Insanity | 0 | 0 | 0.000% |
| 304506 | CF859E. Desk Disorder | 0 | 0 | 0.000% |
| 304507 | CF859F. Ordering T-Shirts | 0 | 0 | 0.000% |
| 304508 | CF859G. Circle of Numbers | 0 | 0 | 0.000% |
| 304509 | CF860A. Did you mean... | 0 | 0 | 0.000% |
| 304510 | CF860B. Polycarp's phone book | 0 | 0 | 0.000% |
| 304511 | CF860C. Tests Renumeration | 0 | 0 | 0.000% |
| 304512 | CF860D. Wizard's Tour | 0 | 0 | 0.000% |
| 304513 | CF860E. Arkady and a Nobody-men | 0 | 0 | 0.000% |
| 304514 | CF861A. k-rounding | 0 | 0 | 0.000% |
| 304515 | CF861B. Which floor? | 0 | 0 | 0.000% |
| 304516 | CF861C. Did you mean... | 0 | 0 | 0.000% |
| 304517 | CF861D. Polycarp's phone book | 0 | 0 | 0.000% |
| 304518 | CF861E. Tests Renumeration | 0 | 0 | 0.000% |
| 304519 | CF861F. Wizard's Tour | 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% |
| 304526 | CF863A. Quasi-palindrome | 0 | 0 | 0.000% |
| 304527 | CF863B. Kayaking | 0 | 0 | 0.000% |
| 304528 | CF863C. 1-2-3 | 0 | 0 | 0.000% |
| 304529 | CF863D. Yet Another Array Queries Problem | 0 | 0 | 0.000% |
| 304530 | CF863E. Turn Off The TV | 0 | 0 | 0.000% |
| 304531 | CF863F. Almost Permutation | 0 | 0 | 0.000% |
| 304532 | CF863G. Graphic Settings | 0 | 0 | 0.000% |
| 304533 | CF864A. Fair Game | 0 | 0 | 0.000% |
| 304534 | CF864B. Polycarp and Letters | 0 | 0 | 0.000% |
| 304535 | CF864C. Bus | 0 | 0 | 0.000% |
| 304536 | CF864D. Make a Permutation! | 0 | 0 | 0.000% |
| 304537 | CF864E. Fire | 0 | 0 | 0.000% |
| 304538 | CF864F. Cities Excursions | 0 | 0 | 0.000% |
| 304539 | CF865A. Save the problem! | 0 | 0 | 0.000% |
| 304540 | CF865B. Ordering Pizza | 0 | 0 | 0.000% |
| 304541 | CF865C. Gotta Go Fast | 0 | 0 | 0.000% |
| 304542 | CF865D. Buy Low Sell High | 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% |
| 304547 | CF866B. Ordering Pizza | 0 | 0 | 0.000% |
| 304548 | CF866C. Gotta Go Fast | 0 | 0 | 0.000% |
| 304549 | CF866D. Buy Low Sell High | 0 | 0 | 0.000% |
| 304550 | CF866E. Hex Dyslexia | 0 | 0 | 0.000% |
| 304551 | CF866F. Egg Roulette | 0 | 0 | 0.000% |
| 304552 | CF866G. Flowers and Chocolate | 0 | 0 | 0.000% |
| 304553 | CF867A. Between the Offices | 0 | 0 | 0.000% |
| 304554 | CF867B. Save the problem! | 0 | 0 | 0.000% |
| 304555 | CF867C. Ordering Pizza | 0 | 0 | 0.000% |