| 309897 | CF1754C2. Make Nonzero Sum (hard version) | 0 | 0 | 0.000% |
| 309933 | CF1761F2. Anti-median (Hard Version) | 0 | 0 | 0.000% |
| 309956 | CF1764G3. Doremy's Perfect DS Class (Hard Version) | 0 | 0 | 0.000% |
| 310037 | CF1774F2. Magician and Pigs (Hard Version) | 0 | 0 | 0.000% |
| 310041 | CF1775A2. Gardener and the Capybaras (hard version) | 0 | 0 | 0.000% |
| 310095 | CF1781H2. Window Signals (hard version) | 0 | 0 | 0.000% |
| 310104 | CF1782H2. Window Signals (hard version) | 0 | 0 | 0.000% |
| 310114 | CF1784C. Monsters (hard version) | 0 | 0 | 0.000% |
| 310120 | CF1785C. Monsters (hard version) | 0 | 0 | 0.000% |
| 310125 | CF1786A2. Alternating Deck (hard version) | 0 | 0 | 0.000% |
| 310129 | CF1786E. Monsters (hard version) | 0 | 0 | 0.000% |
| 310166 | CF1791G2. Teleporters (Hard Version) | 0 | 0 | 0.000% |
| 310173 | CF1792F2. Graph Coloring (hard version) | 0 | 0 | 0.000% |
| 310202 | CF1799D2. Hot Start Up (hard version) | 0 | 0 | 0.000% |
| 310210 | CF1800C2. Powering the Hero (hard version) | 0 | 0 | 0.000% |
| 310213 | CF1800E2. Unforgivable Curse (hard version) | 0 | 0 | 0.000% |
| 310256 | CF1805F2. Survival of the Weakest (hard version) | 0 | 0 | 0.000% |
| 310263 | CF1806F2. GCD Master (hard version) | 0 | 0 | 0.000% |
| 310271 | CF1807G2. Subsequence Addition (Hard Version) | 0 | 0 | 0.000% |
| 310278 | CF1808E3. Minibuses on Venus (hard version) | 0 | 0 | 0.000% |
| 310301 | CF1811G2. Vlad and the Nice Paths (hard version) | 0 | 1 | 0.000% |
| 310368 | CF1822G2. Magic Triples (Hard Version) | 0 | 0 | 0.000% |
| 310377 | CF1824B2. LuoTianyi and the Floating Islands (Hard Version) | 0 | 0 | 0.000% |
| 310385 | CF1825D2. LuoTianyi and the Floating Islands (Hard Version) | 0 | 0 | 0.000% |
| 310395 | CF1827B2. Range Sorting (Hard Version) | 0 | 0 | 0.000% |
| 310404 | CF1828D2. Range Sorting (Hard Version) | 0 | 0 | 0.000% |
| 310431 | CF1832D2. Red-Blue Operations (Hard Version) | 0 | 0 | 0.000% |
| 310483 | CF1840G2. In Search of Truth (Hard Version) | 0 | 0 | 0.000% |
| 310505 | CF1843F2. Omsk Metro (hard version) | 0 | 0 | 0.000% |
| 310512 | CF1844F2. Min Cost Permutation (Hard Version) | 0 | 0 | 0.000% |
| 310526 | CF1846E2. Rudolf and Snowflakes (hard version) | 0 | 0 | 0.000% |
| 310575 | CF1854A2. Dual (Hard Version) | 0 | 0 | 0.000% |
| 310584 | CF1855C2. Dual (Hard Version) | 0 | 0 | 0.000% |
| 310593 | CF1856E2. PermuTree (hard version) | 0 | 0 | 0.000% |
| 310606 | CF1858E2. Rollbacks (Hard Version) | 0 | 0 | 0.000% |
| 310668 | CF1867E2. Salyg1n and Array (hard version) | 0 | 0 | 0.000% |
| 310672 | CF1868B2. Candy Party (Hard Version) | 0 | 0 | 0.000% |
| 310681 | CF1869D2. Candy Party (Hard Version) | 0 | 0 | 0.000% |
| 310760 | CF1882E2. Two Permutations (Hard Version) | 0 | 0 | 0.000% |
| 310768 | CF1883G2. Dances (Hard Version) | 0 | 0 | 0.000% |
| 310773 | CF1884E. Hard Design | 0 | 0 | 0.000% |
| 310782 | CF1887A2. Dances (Hard Version) | 0 | 0 | 0.000% |
| 310792 | CF1888D2. Dances (Hard Version) | 0 | 0 | 0.000% |
| 310798 | CF1889C2. Doremy's Drying Plan (Hard Version) | 0 | 0 | 0.000% |
| 310807 | CF1890E2. Doremy's Drying Plan (Hard Version) | 0 | 0 | 0.000% |
| 310840 | CF1896H2. Cyclic Hamming (Hard Version) | 0 | 0 | 0.000% |
| 310876 | CF1903D2. Maximum And Queries (hard version) | 0 | 0 | 0.000% |
| 310883 | CF1904D2. Set To Max (Hard Version) | 0 | 0 | 0.000% |
| 310918 | CF1909F2. Small Permutation Problem (Hard Version) | 0 | 0 | 0.000% |
| 310963 | CF1914E2. Game with Marbles (Hard Version) | 0 | 0 | 0.000% |
| 310966 | CF1914G2. Light Bulbs (Hard Version) | 0 | 0 | 0.000% |
| 310982 | CF1916H2. Matrix Rank (Hard Version) | 0 | 0 | 0.000% |
| 311002 | CF1919F2. Wine Factory (Hard Version) | 0 | 0 | 0.000% |
| 311011 | CF1920F2. Smooth Sailing (Hard Version) | 0 | 0 | 0.000% |
| 311073 | CF1930D2. Sum over all Substrings (Hard Version) | 0 | 0 | 0.000% |
| 311155 | CF1942C2. Bessie's Birthday Cake (Hard Version) | 0 | 0 | 0.000% |
| 311165 | CF1943D2. Counting Is Fun (Hard Version) | 0 | 0 | 0.000% |
| 311167 | CF1943E2. MEX Game 2 (Hard Version) | 0 | 0 | 0.000% |
| 311175 | CF1944F2. Counting Is Fun (Hard Version) | 0 | 0 | 0.000% |
| 311254 | CF1956E2. Nene vs. Monsters (Hard Version) | 0 | 0 | 0.000% |
| 311262 | CF1957F2. Frequency Mismatch (Hard Version) | 0 | 0 | 0.000% |
| 311295 | CF1967B2. Reverse Card (Hard Version) | 0 | 0 | 0.000% |
| 311299 | CF1967E2. Again Counting Arrays (Hard Version) | 0 | 0 | 0.000% |
| 311308 | CF1968G2. Division + LCP (hard version) | 0 | 0 | 0.000% |
| 311317 | CF1970A3. Balanced Unshuffle (Hard) | 0 | 0 | 0.000% |
| 311320 | CF1970B3. Exact Neighbours (Hard) | 0 | 0 | 0.000% |
| 311323 | CF1970C3. Game on Tree (Hard) | 0 | 0 | 0.000% |
| 311326 | CF1970D3. Arithmancy (Hard) | 0 | 0 | 0.000% |
| 311329 | CF1970E3. Trails (Hard) | 0 | 0 | 0.000% |
| 311332 | CF1970F3. Playing Quidditch (Hard) | 0 | 0 | 0.000% |
| 311335 | CF1970G3. Min-Fund Prison (Hard) | 0 | 0 | 0.000% |
| 311348 | CF1972D2. Reverse Card (Hard Version) | 0 | 0 | 0.000% |
| 311396 | CF1980F2. Field Division (hard version) | 0 | 0 | 0.000% |
| 400194 | GYM100090 L Hard Problem | 0 | 0 | 0.000% |
| 400331 | GYM100142 A The Very Hard One | 0 | 0 | 0.000% |
| 400947 | GYM100287 H Hard Life | 0 | 0 | 0.000% |
| 401090 | GYM100342 H Hard Test | 0 | 0 | 0.000% |
| 401211 | GYM100379 C Fibonacci number’s ratio (the hard version) | 0 | 0 | 0.000% |
| 401464 | GYM100460 J Shards of the Past | 0 | 0 | 0.000% |
| 401564 | GYM100494 H Hard Evidence | 0 | 0 | 0.000% |
| 401814 | GYM100532 H Hard Life | 0 | 0 | 0.000% |
| 402374 | GYM100739 H Hard Molecules | 0 | 0 | 0.000% |
| 402863 | GYM100923 G Por Costel and the Orchard | 0 | 0 | 0.000% |
| 403371 | GYM101142 H Hard Cuts | 0 | 0 | 0.000% |
| 403410 | GYM101150 K2 Fair Warning (Hard) | 0 | 0 | 0.000% |
| 403412 | GYM101150 L2 Theme Park (Hard) | 0 | 0 | 0.000% |
| 403511 | GYM101189 A Arpa’s hard exam and Mehrdad’s naive cheat(Hard) | 0 | 0 | 0.000% |
| 403512 | GYM101189 B Arpa’s obvious problem and Mehrdad’s terrible solution(Hard) | 0 | 0 | 0.000% |
| 403513 | GYM101189 C Arpa's loud Owf and Mehrdad's evil plan(Hard) | 0 | 0 | 0.000% |
| 403514 | GYM101189 D Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths(Hard) | 0 | 0 | 0.000% |
| 403522 | GYM101190 H Hard Refactoring | 0 | 0 | 0.000% |
| 403556 | GYM101193 G Hard exam | 0 | 0 | 0.000% |
| 403559 | GYM101193 J Cherry orchard | 0 | 0 | 0.000% |
| 403837 | GYM101334 H Hardwood Cutting | 0 | 0 | 0.000% |
| 404216 | GYM101463 B Hard-working Student | 0 | 0 | 0.000% |
| 404409 | GYM101502 A A Very Hard Question | 0 | 0 | 0.000% |
| 404450 | GYM101505 G Orchard Division | 0 | 0 | 0.000% |
| 405146 | GYM101806 X Xtreme NP-hard Problem?! | 0 | 0 | 0.000% |
| 405232 | GYM101853 G Hard Equation | 0 | 0 | 0.000% |
| 405325 | GYM101889 H Hard choice | 0 | 0 | 0.000% |