|
| ID | Title | Source | Authors | Difficulty |
|---|
| 1009 | K-based Numbers | USU Championship 1997 | 16479 | 94 |
| 1012 | K-based Numbers. Version 2 | | 8656 | 178 |
| 1013 | K-based Numbers. Version 3 | | 1298 | 194 |
| 1017 | Staircases | USU Local Contest. 1999 | 9855 | 157 |
| 1018 | Binary Apple Tree | USU Local Contest. 1999 | 5537 | 278 |
| 1029 | Ministry | Ural Championship 1999 | 3790 | 352 |
| 1031 | Railway Tickets | Ural Championship 1999 | 3980 | 385 |
| 1036 | Lucky Tickets | | 5066 | 303 |
| 1039 | Anniversary Party | USU Championship 2000 | 3966 | 383 |
| 1073 | Square Country | USU Personal Contest 2001 | 9847 | 140 |
| 1078 | Segments | Winter Mathematical Festival Varna 2001 | 3876 | 352 |
| 1081 | Binary Lexicographic Sequence | Winter Mathematical Festival Varna 2001 | 5104 | 267 |
| 1117 | Hierarchy | Autumn School Contest 2001 | 1781 | 278 |
| 1119 | Metro | Autumn School Contest 2001 | 7110 | 70 |
| 1146 | Maximum Sum | DSAP Vietnam Online Contest November 2001 | 6299 | 79 |
| 1152 | False Mirrors | Ural Championship 2001. Round 2 | 3212 | 155 |
| 1167 | Bicolored Horses | Romanian Online Contest December 2001 | 3672 | 135 |
| 1171 | Lost in Space | Romanian Online Contest December 2001 | 385 | 1263 |
| 1172 | Ship Routes | Romanian Online Contest December 2001 | 886 | 557 |
| 1183 | Brackets Sequence | NEERC 2001 | 2540 | 196 |
| 1203 | Scientific Conference | USU Local Contest. March 2002 | 6198 | 81 |
| 1221 | Malevich Strikes Back! | USU Championship 2002 | 1186 | 422 |
| 1223 | Chernobyl’ Eagle on a Roof | USU Championship 2002 | 1706 | 294 |
| 1225 | Flags | NEERC 2002 Central Subregional | 14255 | 35 |
| 1238 | Folding | NEERC 2002 | 1207 | 415 |
| 1244 | Gentlemen | USU Personal Contest 2003 | 1978 | 255 |
| 1260 | Nudnik Photographer | Autumn School Contest 2003 | 4610 | 110 |
| 1267 | Yekaterinburg Subway | USU Championship 2003 | 285 | 1731 |
| 1276 | Train | NEERC 2003 Central Subregional | 685 | 735 |
| 1287 | Mars Canals | USU Personal Contest 2004 | 1343 | 379 |
| 1303 | Minimal Coverage | Ural Championship 1998 | 2835 | 180 |
| 1310 | ACM Diagnostics | Ural Championship 2004. Round 1 | 461 | 1090 |
| 1326 | Bottle Taps | Ural Championship 2004. Round 2 | 1299 | 392 |
| 1342 | Enterprise | USU Championship 2004 | 689 | 741 |
| 1346 | Intervals of Monotonicity | USU Championship 2004 | 1732 | 297 |
| 1353 | Milliard Vasya's Function | Spring School Contest 2005 | 5016 | 103 |
| 1362 | Classmates 2 | Ural Championship 2005. Round 2 | 1158 | 444 |
| 1371 | Cargo Agency | Ural Championship 2005. Round 1 | 983 | 523 |
| 1389 | Roadworks | Petrozavodsk Summer 2005. Moscow+Ural Contest | 924 | 557 |
| 1410 | Crack | USU Championship 2005 | 1338 | 384 |
| 1427 | SMS | Timus Top Coders: First Challenge | 1391 | 362 |
| 1437 | Gasoline Station | USU Personal Contest 2006 | 1014 | 494 |
| 1452 | Pascal vs. C++ | Timus Top Coders: Second Challenge | 813 | 608 |
| 1459 | Archer's Travel | Petrozavodsk Winter 2006. USU Contest | 280 | 1687 |
| 1463 | Happiness to People! | Petrozavodsk Winter 2006. USU Contest | 805 | 600 |
| 1472 | Martian Army | Petrozavodsk Summer 2006. Ural+Orel Contest | 443 | 1071 |
| 1476 | Lunar Code | Petrozavodsk Summer 2006. Ural+Orel Contest | 366 | 1290 |
| 1495 | One-two, One-two 2 | Autumn School Contest 2006 | 1416 | 339 |
| 1501 | Sense of Beauty | NEERC 2006 Eastern Subregional | 1798 | 266 |
| 1513 | Lemon Tale | Timus Top Coders: Third Challenge | 1249 | 379 |
| 1526 | Martian Plates | Petrozavodsk Winter 2007. D.Gozman Contest | 337 | 1357 |
| 1552 | Brainfuck | Petrozavodsk Summer 2007. NSU Contest | 371 | 1183 |
| 1570 | Eating High | USU Championship 2007 | 489 | 901 |
| 1577 | E-mail | Autumn School Contest 2007 | 937 | 474 |
| 1586 | Threeprime Numbers | NEERC 2007 Eastern Subregional | 3103 | 144 |
| 1611 | Decimation | Ural Championship 2008 | 616 | 693 |
| 1627 | Join | Petrozavodsk Winter 2008. ITMO Contest | 376 | 1092 |
| 1635 | Mnemonics and Palindromes | USU Championship 2008 | 2088 | 199 |
| 1655 | Somali Pirates | NEERC 2008 Eastern Subregional | 213 | 1860 |
| 1658 | Sum of Digits | NEERC 2008 Eastern Subregional | 2064 | 200 |
| 1696 | Salary for Robots | Petrozavodsk Winter 2009. USU Contest | 452 | 873 |
| 1716 | Alternative Solution | NEERC 2009 Eastern Subregional | 503 | 753 |
| 1739 | Faryuks | USU Championship 2009 | 197 | 1857 |
| 1741 | Communication Fiend | USU Championship 2009 | 1338 | 285 |
| 1745 | Yet Another Answer | Petrozavodsk Summer 2009. Ufa SATU Contest | 451 | 819 |
| 1776 | Anniversary Firework | Ural SU Championship 2010 | 762 | 462 |
| 1887 | Frequent Flyer Card | NEERC 2011 Eastern Subregional | 299 | 1060 |
| 1895 | Steaks on Board | NEERC 2011 Eastern Subregional | 142 | 2156 |
| 1900 | Brainwashing Device | Ural Championship 2012 | 576 | 515 |
| 1965 | Pear Trees | Ural FU Personal Contest 2013 | 277 | 990 |
| 2018 | The Debut Album | NEERC 2014 Eastern Subregional | 2500 | 100 |
| 2072 | Kirill the Gardener 3 | Ural Regional School Programming Contest 2015 | 1121 | 201 |
| 2129 | Mortgage in Far Away Kingdom | Later is better than never | 139 | 950 |
| 2141 | Sasha Vilkin | Ural School Programming Contest 2019 | 547 | 245 |
| 2143 | Victoria! | Ural School Programming Contest 2019 | 203 | 642 |
| 2157 | Skydiving | Ural School Programming Contest 2020 | 78 | 1253 |
| 2160 | Meta-statement | Ural School Programming Contest 2021 | 44 | 1119 |
| 2173 | Meta-statement 3 | Ural School Programming Contest 2022 | 68 | 774 |
| 2181 | Student, or There and Back Again | Ural School Programming Contest 2023 | 7 | 1877 |
| 2182 | Broken Rum | Ural School Programming Contest 2024 | 27 | 866 |
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