| 300271 | CF51F. Caterpillar | 0 | 0 | 0.000% |
| 300272 | CF52A. 123-sequence | 0 | 0 | 0.000% |
| 300273 | CF52B. Right Triangles | 0 | 0 | 0.000% |
| 300274 | CF52C. Circular RMQ | 0 | 0 | 0.000% |
| 300275 | CF53A. Autocomplete | 0 | 0 | 0.000% |
| 300276 | CF53B. Blog Photo | 0 | 0 | 0.000% |
| 300277 | CF53C. Little Frog | 0 | 0 | 0.000% |
| 300278 | CF53D. Physical Education | 0 | 0 | 0.000% |
| 300279 | CF53E. Dead Ends | 0 | 0 | 0.000% |
| 300280 | CF54A. Presents | 0 | 0 | 0.000% |
| 300281 | CF54B. Cutting Jigsaw Puzzle | 0 | 0 | 0.000% |
| 300282 | CF54C. First Digit Law | 0 | 0 | 0.000% |
| 300283 | CF54D. Writing a Song | 0 | 0 | 0.000% |
| 300284 | CF54E. Vacuum Сleaner | 0 | 0 | 0.000% |
| 300285 | CF55A. Flea travel | 0 | 0 | 0.000% |
| 300286 | CF55B. Smallest number | 0 | 0 | 0.000% |
| 300287 | CF55C. Pie or die | 0 | 0 | 0.000% |
| 300288 | CF55D. Beautiful numbers | 0 | 0 | 0.000% |
| 300289 | CF55E. Very simple problem | 0 | 0 | 0.000% |
| 300290 | CF56A. Bar | 0 | 0 | 0.000% |
| 300291 | CF56B. Spoilt Permutation | 0 | 0 | 0.000% |
| 300292 | CF56C. Corporation Mail | 0 | 0 | 0.000% |
| 300293 | CF56D. Changing a String | 0 | 0 | 0.000% |
| 300294 | CF56E. Domino Principle | 0 | 0 | 0.000% |
| 300295 | CF57A. Square Earth? | 0 | 0 | 0.000% |
| 300296 | CF57B. Martian Architecture | 0 | 0 | 0.000% |
| 300297 | CF57C. Array | 0 | 0 | 0.000% |
| 300298 | CF57D. Journey | 0 | 0 | 0.000% |
| 300299 | CF57E. Chess | 0 | 0 | 0.000% |
| 300300 | CF58A. Chat room | 0 | 0 | 0.000% |
| 300301 | CF58B. Coins | 0 | 0 | 0.000% |
| 300302 | CF58C. Trees | 0 | 0 | 0.000% |
| 300303 | CF58D. Calendar | 0 | 0 | 0.000% |
| 300304 | CF58E. Expression | 0 | 0 | 0.000% |
| 300305 | CF59A. Word | 0 | 0 | 0.000% |
| 300306 | CF59B. Fortune Telling | 0 | 0 | 0.000% |
| 300307 | CF59C. Title | 0 | 0 | 0.000% |
| 300308 | CF59D. Team Arrangement | 0 | 0 | 0.000% |
| 300309 | CF59E. Shortest Path | 0 | 0 | 0.000% |
| 300310 | CF60A. Where Are My Flakes? | 0 | 0 | 0.000% |
| 300311 | CF60B. Serial Time! | 0 | 0 | 0.000% |
| 300312 | CF60C. Mushroom Strife | 0 | 0 | 0.000% |
| 300313 | CF60D. Savior | 0 | 0 | 0.000% |
| 300314 | CF60E. Mushroom Gnomes | 0 | 0 | 0.000% |
| 300315 | CF61A. Ultra-Fast Mathematician | 0 | 0 | 0.000% |
| 300316 | CF61B. Hard Work | 0 | 0 | 0.000% |
| 300317 | CF61C. Capture Valerian | 0 | 0 | 0.000% |
| 300318 | CF61D. Eternal Victory | 0 | 0 | 0.000% |
| 300319 | CF61E. Enemy is weak | 0 | 0 | 0.000% |
| 300320 | CF62A. A Student's Dream | 0 | 0 | 0.000% |
| 300321 | CF62B. Tyndex.Brome | 0 | 0 | 0.000% |
| 300322 | CF62C. Inquisition | 0 | 0 | 0.000% |
| 300323 | CF62D. Wormhouse | 0 | 0 | 0.000% |
| 300324 | CF62E. World Evil | 0 | 0 | 0.000% |
| 300325 | CF63A. Sinking Ship | 0 | 0 | 0.000% |
| 300326 | CF63B. Settlers' Training | 0 | 0 | 0.000% |
| 300327 | CF63C. Bulls and Cows | 0 | 0 | 0.000% |
| 300328 | CF63D. Dividing Island | 0 | 0 | 0.000% |
| 300329 | CF63E. Sweets Game | 0 | 0 | 0.000% |
| 300330 | CF64A. Factorial | 0 | 0 | 0.000% |
| 300331 | CF64B. Expression | 0 | 0 | 0.000% |
| 300332 | CF64C. Table | 0 | 0 | 0.000% |
| 300333 | CF64D. Presents | 0 | 0 | 0.000% |
| 300334 | CF64E. Prime Segment | 0 | 0 | 0.000% |
| 300335 | CF64F. Domain | 0 | 0 | 0.000% |
| 300336 | CF64G. Path Canonization | 0 | 0 | 0.000% |
| 300337 | CF64H. Table Bowling | 0 | 0 | 0.000% |
| 300338 | CF64I. Sort the Table | 0 | 0 | 0.000% |
| 300339 | CF65A. Harry Potter and Three Spells | 0 | 0 | 0.000% |
| 300340 | CF65B. Harry Potter and the History of Magic | 0 | 0 | 0.000% |
| 300341 | CF65C. Harry Potter and the Golden Snitch | 0 | 0 | 0.000% |
| 300342 | CF65D. Harry Potter and the Sorting Hat | 0 | 0 | 0.000% |
| 300343 | CF65E. Harry Potter and Moving Staircases | 0 | 0 | 0.000% |
| 300344 | CF66A. Petya and Java | 0 | 0 | 0.000% |
| 300345 | CF66B. Petya and Countryside | 0 | 0 | 0.000% |
| 300346 | CF66C. Petya and File System | 0 | 0 | 0.000% |
| 300347 | CF66D. Petya and His Friends | 0 | 0 | 0.000% |
| 300348 | CF66E. Petya and Post | 0 | 0 | 0.000% |
| 300350 | CF67B. Restoration of the Permutation | 0 | 0 | 0.000% |
| 300351 | CF67C. Sequence of Balls | 0 | 0 | 0.000% |
| 300354 | CF68A. Irrational problem | 0 | 0 | 0.000% |
| 300355 | CF68B. Energy exchange | 0 | 0 | 0.000% |
| 300356 | CF68C. Synchrophasotron | 0 | 0 | 0.000% |
| 300357 | CF68D. Half-decay tree | 0 | 0 | 0.000% |
| 300358 | CF68E. Contact | 0 | 0 | 0.000% |
| 300359 | CF69A. Young Physicist | 0 | 0 | 0.000% |
| 300360 | CF69B. Bets | 0 | 0 | 0.000% |
| 300361 | CF69C. Game | 0 | 0 | 0.000% |
| 300362 | CF69D. Dot | 0 | 0 | 0.000% |
| 300363 | CF69E. Subsegments | 0 | 0 | 0.000% |
| 300364 | CF70A. Cookies | 0 | 0 | 0.000% |
| 300365 | CF70B. Text Messaging | 0 | 0 | 0.000% |
| 300366 | CF70C. Lucky Tickets | 0 | 0 | 0.000% |
| 300367 | CF70D. Professor's task | 0 | 0 | 0.000% |
| 300368 | CF70E. Information Reform | 0 | 0 | 0.000% |
| 300369 | CF71A. Way Too Long Words | 0 | 0 | 0.000% |
| 300370 | CF71B. Progress Bar | 0 | 0 | 0.000% |
| 300371 | CF71C. Round Table Knights | 0 | 0 | 0.000% |
| 300372 | CF71D. Solitaire | 0 | 0 | 0.000% |
| 300373 | CF71E. Nuclear Fusion | 0 | 0 | 0.000% |