| 301312 | CF245E. Mishap in Club | 0 | 0 | 0.000% |
| 301315 | CF245H. Queries for Number of Palindromes | 0 | 0 | 0.000% |
| 301317 | CF246B. Increase and Decrease | 0 | 0 | 0.000% |
| 301318 | CF246C. Beauty Pageant | 0 | 0 | 0.000% |
| 301319 | CF246D. Colorful Graph | 0 | 0 | 0.000% |
| 301321 | CF247A. Paper Work | 0 | 0 | 0.000% |
| 301322 | CF247B. Restoring IPv6 | 0 | 0 | 0.000% |
| 301323 | CF247C. Movie Critics | 0 | 0 | 0.000% |
| 301324 | CF247D. Building Bridge | 0 | 0 | 0.000% |
| 301327 | CF248B. Chilly Willy | 0 | 0 | 0.000% |
| 301336 | CF250A. Paper Work | 0 | 0 | 0.000% |
| 301337 | CF250B. Restoring IPv6 | 0 | 0 | 0.000% |
| 301338 | CF250C. Movie Critics | 0 | 0 | 0.000% |
| 301339 | CF250D. Building Bridge | 0 | 0 | 0.000% |
| 301341 | CF251A. Points on Line | 0 | 0 | 0.000% |
| 301342 | CF251B. Playing with Permutations | 0 | 0 | 0.000% |
| 301346 | CF252A. Little Xor | 0 | 0 | 0.000% |
| 301347 | CF252B. Unsorting Array | 0 | 0 | 0.000% |
| 301348 | CF252C. Points on Line | 0 | 0 | 0.000% |
| 301349 | CF252D. Playing with Permutations | 0 | 0 | 0.000% |
| 301351 | CF253A. Boys and Girls | 0 | 0 | 0.000% |
| 301352 | CF253B. Physics Practical | 0 | 0 | 0.000% |
| 301353 | CF253C. Text Editor | 0 | 0 | 0.000% |
| 301356 | CF254A. Cards with Numbers | 0 | 0 | 0.000% |
| 301357 | CF254B. Jury Size | 0 | 0 | 0.000% |
| 301358 | CF254C. Anagram | 0 | 0 | 0.000% |
| 301362 | CF255B. Code Parsing | 0 | 0 | 0.000% |
| 301363 | CF255C. Almost Arithmetical Progression | 0 | 0 | 0.000% |
| 301364 | CF255D. Mr. Bender and Square | 0 | 0 | 0.000% |
| 301366 | CF256A. Almost Arithmetical Progression | 0 | 0 | 0.000% |
| 301367 | CF256B. Mr. Bender and Square | 0 | 0 | 0.000% |
| 301371 | CF257A. Sockets | 0 | 0 | 0.000% |
| 301372 | CF257B. Playing Cubes | 0 | 0 | 0.000% |
| 301373 | CF257C. View Angle | 0 | 0 | 0.000% |
| 301374 | CF257D. Sum | 0 | 0 | 0.000% |
| 301376 | CF258A. Little Elephant and Bits | 0 | 0 | 0.000% |
| 301377 | CF258B. Little Elephant and Elections | 0 | 0 | 0.000% |
| 301381 | CF259A. Little Elephant and Chess | 0 | 0 | 0.000% |
| 301382 | CF259B. Little Elephant and Magic Square | 0 | 0 | 0.000% |
| 301383 | CF259C. Little Elephant and Bits | 0 | 0 | 0.000% |
| 301384 | CF259D. Little Elephant and Elections | 0 | 0 | 0.000% |
| 301386 | CF260A. Adding Digits | 0 | 0 | 0.000% |
| 301387 | CF260B. Ancient Prophesy | 0 | 0 | 0.000% |
| 301388 | CF260C. Balls and Boxes | 0 | 0 | 0.000% |
| 301391 | CF261A. Maxim and Discounts | 0 | 0 | 0.000% |
| 301392 | CF261B. Maxim and Restaurant | 0 | 0 | 0.000% |
| 301397 | CF262B. Roma and Changing Signs | 0 | 0 | 0.000% |
| 301398 | CF262C. Maxim and Discounts | 0 | 0 | 0.000% |
| 301399 | CF262D. Maxim and Restaurant | 0 | 0 | 0.000% |
| 301404 | CF263D. Cycle in Graph | 0 | 0 | 0.000% |
| 301406 | CF264A. Escape from Stones | 0 | 0 | 0.000% |
| 301407 | CF264B. Good Sequences | 0 | 0 | 0.000% |
| 301412 | CF265B. Roadside Trees (Simplified Edition) | 0 | 0 | 0.000% |
| 301413 | CF265C. Escape from Stones | 0 | 0 | 0.000% |
| 301414 | CF265D. Good Sequences | 0 | 0 | 0.000% |
| 301425 | CF268B. Buttons | 0 | 0 | 0.000% |
| 301426 | CF268C. Beautiful Sets of Points | 0 | 0 | 0.000% |
| 301429 | CF269A. Magical Boxes | 0 | 0 | 0.000% |
| 301430 | CF269B. Greenhouse Effect | 0 | 0 | 0.000% |
| 301434 | CF270A. Fancy Fence | 0 | 0 | 0.000% |
| 301435 | CF270B. Multithreading | 0 | 0 | 0.000% |
| 301436 | CF270C. Magical Boxes | 0 | 0 | 0.000% |
| 301437 | CF270D. Greenhouse Effect | 0 | 0 | 0.000% |
| 301440 | CF271B. Prime Matrix | 0 | 0 | 0.000% |
| 301441 | CF271C. Secret | 0 | 0 | 0.000% |
| 301442 | CF271D. Good Substrings | 0 | 0 | 0.000% |
| 301444 | CF272A. Dima and Friends | 0 | 0 | 0.000% |
| 301445 | CF272B. Dima and Sequence | 0 | 0 | 0.000% |
| 301446 | CF272C. Dima and Staircase | 0 | 0 | 0.000% |
| 301447 | CF272D. Dima and Two Sequences | 0 | 0 | 0.000% |
| 301449 | CF273A. Dima and Staircase | 0 | 0 | 0.000% |
| 301450 | CF273B. Dima and Two Sequences | 0 | 0 | 0.000% |
| 301454 | CF274A. k-Multiple Free Set | 0 | 0 | 0.000% |
| 301455 | CF274B. Zero Tree | 0 | 0 | 0.000% |
| 301460 | CF275B. Convex Shape | 0 | 0 | 0.000% |
| 301461 | CF275C. k-Multiple Free Set | 0 | 0 | 0.000% |
| 301462 | CF275D. Zero Tree | 0 | 0 | 0.000% |
| 301465 | CF276B. Little Girl and Game | 0 | 0 | 0.000% |
| 301466 | CF276C. Little Girl and Maximum Sum | 0 | 0 | 0.000% |
| 301467 | CF276D. Little Girl and Maximum XOR | 0 | 0 | 0.000% |
| 301469 | CF277A. Learning Languages | 0 | 0 | 0.000% |
| 301475 | CF278B. New Problem | 0 | 0 | 0.000% |
| 301476 | CF278C. Learning Languages | 0 | 0 | 0.000% |
| 301479 | CF279A. Point on Spiral | 0 | 0 | 0.000% |
| 301480 | CF279B. Books | 0 | 0 | 0.000% |
| 301481 | CF279C. Ladder | 0 | 0 | 0.000% |
| 301483 | CF279E. Beautiful Decomposition | 0 | 0 | 0.000% |
| 301485 | CF280B. Maximum Xor Secondary | 0 | 0 | 0.000% |
| 301490 | CF281B. Nearest Fraction | 0 | 0 | 0.000% |
| 301492 | CF281D. Maximum Xor Secondary | 0 | 0 | 0.000% |
| 301495 | CF282B. Painting Eggs | 0 | 0 | 0.000% |
| 301496 | CF282C. XOR and OR | 0 | 0 | 0.000% |
| 301499 | CF283A. Cows and Sequence | 0 | 0 | 0.000% |
| 301500 | CF283B. Cow Program | 0 | 0 | 0.000% |
| 301504 | CF284A. Cows and Primitive Roots | 0 | 0 | 0.000% |
| 301505 | CF284B. Cows and Poker Game | 0 | 0 | 0.000% |
| 301506 | CF284C. Cows and Sequence | 0 | 0 | 0.000% |
| 301507 | CF284D. Cow Program | 0 | 0 | 0.000% |
| 301509 | CF285A. Slightly Decreasing Permutations | 0 | 0 | 0.000% |
| 301510 | CF285B. Find Marble | 0 | 0 | 0.000% |