|
| ID | Title | Source | Authors | Difficulty |
|---|
| 1000 | A+B Problem | | 59019 | 19 |
| 1001 | Reverse Root | | 15778 | 20 |
| 1785 | Lost in Localization | Ural Regional School Programming Contest 2010 | 8075 | 21 |
| 1877 | Bicycle Codes | Ural Regional School Programming Contest 2011 | 5386 | 24 |
| 1293 | Eniya | Spring School Contest 2004 | 14735 | 25 |
| 1409 | Two Gangsters | Autumn School Contest 2005 | 14215 | 27 |
| 1820 | Ural Steaks | USU Personal Contest 2011 | 5264 | 29 |
| 1787 | Turn for MEGA | Ural Regional School Programming Contest 2010 | 5210 | 32 |
| 1880 | Psych Up's Eigenvalues | Ural Regional School Programming Contest 2011 | 3949 | 33 |
| 1264 | Workdays | Autumn School Contest 2003 | 10684 | 34 |
| 1197 | Lonesome Knight | Spring School Contest 2002 | 10163 | 35 |
| 1910 | Titan Ruins: Hidden Entrance | NEERC 2012 Eastern Subregional | 2627 | 37 |
| 1639 | Chocolate 2 | Autumn School Contest 2008 | 6146 | 40 |
| 1924 | Four Imps | Ural Regional School Programming Contest 2012 | 2301 | 41 |
| 1313 | Some Words about Sport | Ural Championship 2004. Round 1 | 8170 | 45 |
| 1068 | Sum | | 21136 | 47 |
| 1209 | 1, 10, 100, 1000... | Autumn School Contest 2002 | 7619 | 47 |
| 2001 | Mathematicians and Berries | Ural Regional School Programming Contest 2013 | 1311 | 47 |
| 1319 | Hotel | Ural Championship 2004. Round 2 | 7679 | 48 |
| 1567 | SMS-spam | USU Championship 2007 | 5983 | 48 |
| 1581 | Teamwork | Autumn School Contest 2007 | 5868 | 49 |
| 1881 | Long problem statement | Ural Regional School Programming Contest 2011 | 2510 | 52 |
| 1263 | Elections | Autumn School Contest 2003 | 6888 | 53 |
| 1225 | Flags | NEERC 2002 Central Subregional | 6636 | 54 |
| 1585 | Penguins | NEERC 2007 Eastern Subregional | 5325 | 54 |
| 1876 | Centipede's Morning | Ural Regional School Programming Contest 2011 | 2421 | 54 |
| 1100 | Final Standings | Tetrahedron Team Online Contest May 2001 | 6182 | 56 |
| 1893 | A380 | NEERC 2011 Eastern Subregional | 2335 | 56 |
| 1327 | Fuses | Autumn School Contest 2004 | 6504 | 57 |
| 1110 | Power | Bulgarian Online Contest September 2001 | 5894 | 59 |
| 1243 | Divorce of the Seven Dwarfs | USU Personal Contest 2003 | 6001 | 60 |
| 1493 | One Step from Happiness | Autumn School Contest 2006 | 5487 | 60 |
| 1349 | Farm | Spring School Contest 2005 | 6054 | 62 |
| 1607 | Taxi | USU Personal Contest 2008 | 4261 | 63 |
| 1925 | British Scientists Save the World | Ural Regional School Programming Contest 2012 | 1523 | 63 |
| 1545 | Hieroglyphs | Ural Championship 2007 | 4815 | 64 |
| 1496 | Spammer | Autumn School Contest 2006 | 5088 | 65 |
| 1636 | Penalty Time | USU Championship 2008 | 3790 | 65 |
| 1991 | The battle near the swamp | NEERC 2013 Eastern Subregional | 919 | 67 |
| 1149 | Sinus Dances | | 5131 | 68 |
| 1196 | History Exam | Spring School Contest 2002 | 5182 | 68 |
| 1617 | Flat Spots | Ural Championship 2008 | 3855 | 69 |
| 1723 | Sandro's Book | Ural Regional School Programming Contest 2009 | 2908 | 70 |
| 1837 | Isenbaev's Number | Ural Championship 2011 | 2098 | 70 |
| 1131 | Copying | USU Championship 2001 | 4831 | 72 |
| 1792 | Hamming Code | Ural Regional School Programming Contest 2010 | 2329 | 72 |
| 1563 | Bayan | USU Championship 2007 | 3949 | 73 |
| 1654 | Cipher Message | NEERC 2008 Eastern Subregional | 3325 | 73 |
| 1025 | Democracy in Danger | Autumn School Contest 2000 | 14582 | 74 |
| 1457 | Heating Main | Timus Top Coders: Second Challenge | 4790 | 74 |
| 1935 | Tears of Drowned | Ural FU Championship 2012 | 1256 | 75 |
| 1224 | Spiral | NEERC 2002 Central Subregional | 4742 | 76 |
| 1712 | Cipher Grille | NEERC 2009 Eastern Subregional | 2713 | 76 |
| 1083 | Factorials!!! | Spring School Contest 2001 | 11952 | 79 |
| 1290 | Sabotage | Spring School Contest 2004 | 4695 | 79 |
| 1902 | Neo-Venice | Ural Championship 2012 | 1192 | 81 |
| 2005 | Taxi for Programmers | Ural Regional School Programming Contest 2013 | 731 | 83 |
| 1194 | Handshakes | Spring School Contest 2002 | 4195 | 84 |
| 1502 | Domino Dots | NEERC 2006 Eastern Subregional | 3917 | 84 |
| 1638 | Bookworm | USU Championship 2008 | 2885 | 85 |
| 1139 | City Blocks | NEERC 2001 Central Subregional | 4069 | 86 |
| 1120 | Sum of Sequential Numbers | Autumn School Contest 2001 | 4029 | 87 |
| 1404 | Easy to Hack! | Autumn School Contest 2005 | 4305 | 88 |
| 2011 | Long Statement | Ural Regional School Programming Contest 2013 | 681 | 89 |
| 1106 | Two Teams | Tetrahedron Team Online Contest May 2001 | 3854 | 90 |
| 1786 | Sandro's Biography | Ural Regional School Programming Contest 2010 | 1844 | 90 |
| 1796 | Amusement Park | Ural Regional School Programming Contest 2010 | 1855 | 90 |
| 1180 | Stone Game | USU Personal Contest 2002 | 3864 | 91 |
| 1642 | 1D Maze | Autumn School Contest 2008 | 2601 | 93 |
| 2002 | Test Task | Ural Regional School Programming Contest 2013 | 651 | 93 |
| 1601 | AntiCAPS | USU Personal Contest 2008 | 2885 | 94 |
| 1161 | Stripies | NEERC 2001 Northern Subregional | 3707 | 95 |
| 1731 | Dill | Ural Regional School Programming Contest 2009 | 2129 | 96 |
| 1510 | Order | NEERC 2006 Eastern Subregional | 3399 | 97 |
| 1644 | A Whole Lot of Walnuts | Autumn School Contest 2008 | 2491 | 97 |
| 1005 | Stone Pile | USU Championship 1997 | 10841 | 99 |
| 1009 | K-based Numbers | USU Championship 1997 | 10860 | 99 |
| 1873 | GOV Chronicles | Ural Regional School Programming Contest 2011 | 1318 | 99 |
| 1446 | Sorting Hat | Ural Championship 2006 | 3511 | 101 |
| 1777 | Anindilyakwa | Ural SU Championship 2010 | 1658 | 101 |
| 1104 | Don’t Ask Woman about Her Age | Tetrahedron Team Online Contest May 2001 | 3390 | 102 |
| 1119 | Metro | Autumn School Contest 2001 | 3430 | 102 |
| 1214 | Strange Procedure | Autumn School Contest 2002 | 3492 | 102 |
| 1297 | Palindrome | Spring School Contest 2004 | 3605 | 102 |
| 1014 | Product of Digits | USU Local Contest. 1999 | 10394 | 103 |
| 1370 | Magician | Ural Championship 2005. Round 2 | 3664 | 103 |
| 1228 | Array | NEERC 2002 Central Subregional | 3446 | 104 |
| 1146 | Maximum Sum | DSAP Vietnam Online Contest November 2001 | 3299 | 106 |
| 2010 | Sasha the Young Grandmaster | Ural Regional School Programming Contest 2013 | 564 | 107 |
| 1020 | Rope | Autumn School Contest 2000 | 9839 | 109 |
| 1573 | Alchemy | Autumn School Contest 2007 | 2608 | 110 |
| 1082 | Gaby Ivanushka | Spring School Contest 2001 | 8533 | 111 |
| 1118 | Nontrivial Numbers | Autumn School Contest 2001 | 3147 | 111 |
| 1136 | Parliament | NEERC 2001 Central Subregional | 3133 | 112 |
| 1330 | Intervals | Autumn School Contest 2004 | 3325 | 112 |
| 1044 | Lucky Tickets. Easy! | USU Championship 2000 | 9170 | 115 |
| 1582 | Bookmakers | NEERC 2007 Eastern Subregional | 2470 | 115 |
| 1079 | Maximum | Winter Mathematical Festival Varna 2001 | 8200 | 116 |
| 1868 | Prediction Contest | Ural FU Championship 2011 | 1133 | 116 |
| 1192 | Ball in a Dream | Spring School Contest 2002 | 3017 | 117 |
| 1711 | Code Names | NEERC 2009 Eastern Subregional | 1740 | 118 |
| 1226 | esreveR redrO | NEERC 2002 Central Subregional | 2996 | 119 |
| 1296 | Hyperjump | Spring School Contest 2004 | 3106 | 119 |
| 1203 | Scientific Conference | USU Local Contest. March 2002 | 2951 | 120 |
| 1206 | Sum of Digits of the Sum of Numbers | USU Local Contest. March 2002 | 2952 | 120 |
| 1931 | Excellent Team | Ural FU Championship 2012 | 774 | 121 |
| 1219 | Symbolic Sequence | USU Championship 2002 | 2932 | 122 |
| 1683 | Fridge | USU Personal Contest 2009 | 1862 | 123 |
| 1984 | Dummy Guy | Open Ural FU Championship 2013 | 502 | 124 |
| 1688 | Team.GOV! | USU Personal Contest 2009 | 1814 | 126 |
| 1123 | Salary | Autumn School Contest 2001 | 2757 | 127 |
| 1126 | Magnetic Storms | USU Championship 2001 | 2737 | 128 |
| 1086 | Cryptography | Spring School Contest 2001 | 7347 | 129 |
| 1788 | On the Benefits of Umbrellas | Ural Regional School Programming Contest 2010 | 1289 | 129 |
| 1283 | Dwarf | USU Personal Contest 2004 | 2778 | 132 |
| 1725 | Sold Out! | Ural Regional School Programming Contest 2009 | 1548 | 132 |
| 1336 | Problem of Ben Betsalel | Autumn School Contest 2004 | 2791 | 133 |
| 1022 | Genealogical Tree | Autumn School Contest 2000 | 7910 | 135 |
| 1353 | Milliard Vasya's Function | Spring School Contest 2005 | 2771 | 135 |
| 1821 | Biathlon | USU Personal Contest 2011 | 1117 | 135 |
| 1740 | Deer is Better! | USU Championship 2009 | 1483 | 136 |
| 1021 | Sacrament of the Sum | Autumn School Contest 2000 | 7822 | 137 |
| 1864 | Get-Together at Den's | Ural FU Championship 2011 | 949 | 138 |
| 1352 | Mersenne Primes | Spring School Contest 2005 | 2693 | 139 |
| 1612 | Tram Forum | Ural Championship 2008 | 1910 | 139 |
| 1993 | This cheeseburger you don't need | NEERC 2013 Eastern Subregional | 441 | 139 |
| 1222 | Chernobyl’ Eagles | USU Championship 2002 | 2547 | 140 |
| 1260 | Nudnik Photographer | Autumn School Contest 2003 | 2616 | 140 |
| 1026 | Questions and Answers | Autumn School Contest 2000 | 7581 | 141 |
| 1964 | Chinese Dialects | Ural FU Personal Contest 2013 | 587 | 141 |
| 1142 | Relations | DSAP Vietnam Online Contest November 2001 | 2460 | 142 |
| 1878 | Rubinchik's Cube | Ural Regional School Programming Contest 2011 | 916 | 142 |
| 2000 | Grand Theft Array V | Ural Regional School Programming Contest 2013 | 421 | 142 |
| 1982 | Electrification Plan | Open Ural FU Championship 2013 | 428 | 144 |
| 1402 | Cocktails | Autumn School Contest 2005 | 2610 | 145 |
| 1576 | Telephone Tariffs | Autumn School Contest 2007 | 1976 | 145 |
| 1917 | Titan Ruins: Deadly Accuracy | NEERC 2012 Eastern Subregional | 642 | 148 |
| 1084 | Goat in the Garden | Spring School Contest 2001 | 6318 | 150 |
| 1756 | One and a Half Diggers | USU Personal Contest 2010 | 1239 | 152 |
| 1178 | Akbardin’s Roads | USU Personal Contest 2002 | 2270 | 155 |
| 1794 | Masterpieces of World Architecture | Ural Regional School Programming Contest 2010 | 1041 | 159 |
| 1572 | Yekaterinozavodsk Great Well | Autumn School Contest 2007 | 1773 | 161 |
| 1915 | Titan Ruins: Reconstruction of Bygones | NEERC 2012 Eastern Subregional | 590 | 161 |
| 1769 | Old Ural Legend | Ural Championship 2010 | 1146 | 162 |
| 1157 | Young Tiler | Ural Championship 2001. Round 2 | 2142 | 163 |
| 1012 | K-based Numbers. Version 2 | | 6526 | 164 |
| 1135 | Recruits | NEERC 2001 Central Subregional | 2119 | 165 |
| 1789 | Searching for the Dodecahedron | Ural Regional School Programming Contest 2010 | 1004 | 165 |
| 1800 | Murphy's Law | NEERC 2010 Eastern Subregional | 988 | 166 |
| 1869 | New Year Cruise | Ural FU Championship 2011 | 789 | 166 |
| 1073 | Square Country | USU Personal Contest 2001 | 5781 | 167 |
| 1295 | Crazy Notions | Spring School Contest 2004 | 2201 | 167 |
| 1506 | Columns of Numbers | NEERC 2006 Eastern Subregional | 1961 | 167 |
| 1727 | Znaika's Magic Numbers | Ural Regional School Programming Contest 2009 | 1217 | 167 |
| 1210 | Kind Spirits | Autumn School Contest 2002 | 2120 | 168 |
| 1013 | K-based Numbers. Version 3 | | 6333 | 169 |
| 1017 | Staircases | USU Local Contest. 1999 | 6354 | 169 |
| 1213 | Cockroaches! | Autumn School Contest 2002 | 2117 | 169 |
| 1874 | Football Goal | Ural Regional School Programming Contest 2011 | 769 | 169 |
| 1306 | Sequence Median | Ural Championship 1998 | 2167 | 170 |
| 1685 | Orthography | USU Personal Contest 2009 | 1339 | 170 |
| 1709 | Penguin-Avia | Ural Championship 2009 | 1301 | 173 |
| 1640 | Circle of Winter | Autumn School Contest 2008 | 1393 | 174 |
| 1167 | Bicolored Horses | Romanian Online Contest December 2001 | 2004 | 175 |
| 1048 | Superlong Sums | USU Local Contest. March 2000 | 5853 | 178 |
| 1413 | Mars Jumper | USU Championship 2005 | 2111 | 178 |
| 1656 | Far Away Kingdom's Army | NEERC 2008 Eastern Subregional | 1344 | 179 |
| 1930 | Ivan's Car | Ural Regional School Programming Contest 2012 | 528 | 179 |
| 1645 | Ski Race | Autumn School Contest 2008 | 1327 | 182 |
| 1164 | Fillword | NEERC 2001 Northern Subregional | 1900 | 184 |
| 1335 | White Thesis | Autumn School Contest 2004 | 2017 | 184 |
| 1134 | Cards | NEERC 2001 Central Subregional | 1881 | 185 |
| 1193 | Queue at the Exam | Spring School Contest 2002 | 1891 | 186 |
| 1354 | Palindrome. Again Palindrome | Spring School Contest 2005 | 2007 | 187 |
| 1885 | Passenger Comfort | NEERC 2011 Eastern Subregional | 682 | 188 |
| 1102 | Strange Dialog | Tetrahedron Team Online Contest May 2001 | 1830 | 189 |
| 1280 | Topological Sorting | NEERC 2003 Central Subregional | 1933 | 189 |
| 1208 | Legendary Teams Contest | USU Local Contest. March 2002 | 1828 | 193 |
| 1114 | Boxes | Bulgarian Online Contest September 2001 | 1796 | 194 |
| 1680 | The First Nonqualifying | USU Personal Contest 2009 | 1173 | 194 |
| 1981 | Parallel and Perpendicular | Open Ural FU Championship 2013 | 315 | 194 |
| 1138 | Integer Percentage | NEERC 2001 Central Subregional | 1788 | 195 |
| 1272 | Non-Yekaterinburg Subway | USU Championship 2003 | 1871 | 195 |
| 1023 | Buttons | Autumn School Contest 2000 | 5462 | 196 |
| 1613 | For Fans of Statistics | Ural Championship 2008 | 1349 | 197 |
| 1944 | Record of the Attack at the Orbit | Ural FU Personal Contest 2012 | 584 | 198 |
| 1133 | Fibonacci Sequence | NEERC 2001 Central Subregional | 1752 | 199 |
| 1586 | Threeprime Numbers | NEERC 2007 Eastern Subregional | 1427 | 199 |
| 1922 | Superhero Team | Ural Regional School Programming Contest 2012 | 471 | 199 |
| 1207 | Median on the Plane | USU Local Contest. March 2002 | 1755 | 200 |
| 1112 | Cover | Bulgarian Online Contest September 2001 | 1731 | 201 |
| 1846 | GCD 2010 | Petrozavodsk Summer 2010. USU Contest | 651 | 203 |
| 1671 | Anansi's Cobweb | Petrozavodsk Summer 2008. USU Contest | 1143 | 204 |
| 1737 | Mnemonics and Palindromes 3 | USU Championship 2009 | 970 | 208 |
| 1889 | Airport Announcements | NEERC 2011 Eastern Subregional | 613 | 209 |
| 1002 | Phone Numbers | Central European Olympiad in Informatics 1999 | 5126 | 210 |
| 1249 | Ancient Necropolis | USU Local Contest. March 2003 | 1710 | 210 |
| 1200 | Horns and Hoofs | USU Local Contest. March 2002 | 1665 | 211 |
| 1423 | String Tale | Timus Top Coders: First Challenge | 1699 | 212 |
| 1998 | The old Padawan | NEERC 2013 Eastern Subregional | 283 | 213 |
| 1515 | Cashmaster | Timus Top Coders: Third Challenge | 1491 | 215 |
| 1348 | Goat in the Garden 2 | Spring School Contest 2005 | 1733 | 216 |
| 1011 | Conductors | USU Championship 1997 | 4937 | 218 |
| 1052 | Rabbit Hunt | USU Local Contest. March 2000 | 4787 | 219 |
| 1987 | Nested Segments | Open Ural FU Championship 2013 | 278 | 219 |
| 1795 | Husband in a Shop | Ural Regional School Programming Contest 2010 | 738 | 224 |
| 1125 | Hopscotch | USU Championship 2001 | 1547 | 225 |
| 1024 | Permutations | Autumn School Contest 2000 | 4707 | 227 |
| 1033 | Labyrinth | Ural Championship 1999 | 4695 | 227 |
| 1826 | Minefield | USU Personal Contest 2011 | 658 | 228 |
| 1491 | Unreal Story | Autumn School Contest 2006 | 1439 | 229 |
| 1929 | Teddybears are not for Everyone | Ural Regional School Programming Contest 2012 | 410 | 229 |
| 1152 | False Mirrors | Ural Championship 2001. Round 2 | 1519 | 230 |
| 1490 | Fire Circle | Autumn School Contest 2006 | 1433 | 230 |
| 1049 | Brave Balloonists | USU Local Contest. March 2000 | 4492 | 233 |
| 1150 | Page Numbers | Ural Championship 2001. Round 2 | 1481 | 236 |
| 1333 | Genie Bomber 2 | Autumn School Contest 2004 | 1565 | 237 |
| 1933 | Guns for Battle! | Ural FU Championship 2012 | 392 | 237 |
| 1122 | Game | Autumn School Contest 2001 | 1461 | 238 |
| 1191 | Catch the thief! | Spring School Contest 2002 | 1468 | 239 |
| 1779 | The Great Team | Ural SU Championship 2010 | 685 | 242 |
| 1183 | Brackets Sequence | NEERC 2001 | 1444 | 243 |
| 1823 | Ideal Gas | USU Personal Contest 2011 | 615 | 243 |
| 1108 | Heritage | Bulgarian Online Contest September 2001 | 1416 | 245 |
| 1247 | Check a Sequence | USU Personal Contest 2003 | 1466 | 245 |
| 1635 | Mnemonics and Palindromes | USU Championship 2008 | 988 | 246 |
| 1113 | Jeep | Bulgarian Online Contest September 2001 | 1408 | 247 |
| 1204 | Idempotents | USU Local Contest. March 2002 | 1423 | 247 |
| 1385 | Interesting Number | Petrozavodsk Summer 2005. Moscow+Ural Contest | 1524 | 247 |
| 1603 | Erudite | USU Personal Contest 2008 | 1087 | 247 |
| 1718 | Rejudge | NEERC 2009 Eastern Subregional | 822 | 247 |
| 1010 | Discrete Function | USTU PhysTech Cup 2000 | 4322 | 248 |
| 1355 | Bald Spot Revisited | Spring School Contest 2005 | 1490 | 251 |
| 1433 | Diamonds | USU Personal Contest 2006 | 1428 | 251 |
| 1989 | Subpalindromes | Open Ural FU Championship 2013 | 242 | 251 |
| 1528 | Sequence | Petrozavodsk Winter 2007. D.Gozman Contest | 1227 | 255 |
| 1242 | Werewolf | USU Personal Contest 2003 | 1404 | 256 |
| 1081 | Binary Lexicographic Sequence | Winter Mathematical Festival Varna 2001 | 3701 | 257 |
| 1298 | Knight | Spring School Contest 2004 | 1430 | 257 |
| 1904 | The Lessons of the Past | Ural Championship 2012 | 362 | 261 |
| 1087 | The Time to Take Stones | Spring School Contest 2001 | 3588 | 263 |
| 1047 | Simple Calculations | USU Local Contest. March 2000 | 3963 | 264 |
| 1195 | Ouths and Crosses | Spring School Contest 2002 | 1328 | 264 |
| 1080 | Map Coloring | Winter Mathematical Festival Varna 2001 | 3582 | 266 |
| 1255 | Graveyard of the Cosa Nostra | USU Local Contest. March 2003 | 1342 | 268 |
| 1726 | Visits | Ural Regional School Programming Contest 2009 | 755 | 268 |
| 1179 | Numbers in Text | USU Personal Contest 2002 | 1303 | 269 |
| 1205 | By the Underground or by Foot? | USU Local Contest. March 2002 | 1303 | 269 |
| 2003 | Simple Magic | Ural Regional School Programming Contest 2013 | 215 | 272 |
| 1303 | Minimal Coverage | Ural Championship 1998 | 1343 | 273 |
| 1028 | Stars | Ural Championship 1999 | 3897 | 274 |
| 1109 | Conference | Bulgarian Online Contest September 2001 | 1260 | 275 |
| 1494 | Monobilliards | Autumn School Contest 2006 | 1181 | 278 |
| 1053 | Pinocchio | NEERC 2000 Central Subregional | 3737 | 279 |
| 1201 | Which Day Is It? | USU Local Contest. March 2002 | 1254 | 280 |
| 1220 | Stacks | USU Championship 2002 | 1271 | 280 |
| 1537 | Ents | USU Personal Contest 2007 | 1113 | 280 |
| 1117 | Hierarchy | Autumn School Contest 2001 | 1234 | 281 |
| 1032 | Find a Multiple | Ural Championship 1999 | 3272 | 285 |
| 1804 | The Machinegunners in a Playoff | NEERC 2010 Eastern Subregional | 572 | 285 |
| 1497 | Cutting a Square | Autumn School Contest 2006 | 1138 | 289 |
| 1684 | Jack's Last Word | USU Personal Contest 2009 | 787 | 289 |
| 1741 | Communication Fiend | USU Championship 2009 | 692 | 290 |
| 1211 | Collective Guarantee | Autumn School Contest 2002 | 1222 | 291 |
| 1658 | Sum of Digits | NEERC 2008 Eastern Subregional | 825 | 291 |
| 1184 | Cable Master | NEERC 2001 | 1200 | 292 |
| 1551 | Sumo Tournament | Ural Championship 2007 | 1038 | 294 |
| 1753 | Bookshelf | USU Personal Contest 2010 | 636 | 294 |
| 1018 | Binary Apple Tree | USU Local Contest. 1999 | 3626 | 295 |
| 1997 | Those are not the droids you're looking for | NEERC 2013 Eastern Subregional | 201 | 296 |
| 1244 | Gentlemen | USU Personal Contest 2003 | 1208 | 297 |
| 1377 | Lara Croft | Ural Championship 2005. Round 1 | 1263 | 297 |
| 1793 | Tray 2 | Ural Regional School Programming Contest 2010 | 556 | 297 |
| 1748 | The Most Complex Number | Petrozavodsk Summer 2009. Ufa SATU Contest | 643 | 298 |
| 1590 | Bacon’s Cipher | NEERC 2007 Eastern Subregional | 940 | 300 |
| 1471 | Tree | Petrozavodsk Summer 2006. Ural+Orel Contest | 1092 | 303 |
| 1692 | Flags for Provinces | Petrozavodsk Winter 2009. USU Contest | 742 | 304 |
| 1116 | Piecewise Constant Function | Autumn School Contest 2001 | 1130 | 307 |
| 1995 | Illegal spices | NEERC 2013 Eastern Subregional | 194 | 307 |
| 1501 | Sense of Beauty | NEERC 2006 Eastern Subregional | 1061 | 308 |
| 1215 | Exactness of Projectile Hit | Autumn School Contest 2002 | 1149 | 309 |
| 1127 | Colored Bricks | USU Championship 2001 | 1122 | 310 |
| 1901 | Space Elevators | Ural Championship 2012 | 303 | 310 |
| 1121 | Branches | Autumn School Contest 2001 | 1108 | 313 |
| 1923 | Scary Politics | Ural Regional School Programming Contest 2012 | 295 | 314 |
| 1036 | Lucky Tickets | | 3384 | 315 |
| 1008 | Image Encoding | USTU PhysTech Cup 2000 | 3384 | 317 |
| 1190 | Bar of Chocolate | Spring School Contest 2002 | 1102 | 318 |
| 1648 | Yachts | Autumn School Contest 2008 | 755 | 319 |
| 1854 | Negotiations with Parthians | Petrozavodsk Summer 2011. USU Contest | 407 | 320 |
| 1153 | Supercomputer | Ural Championship 2001. Round 2 | 1077 | 323 |
| 1294 | Mars Satellites | Spring School Contest 2004 | 1136 | 323 |
| 1302 | Delta-wave | Ural Championship 1998 | 1133 | 324 |
| 1742 | Team building | Petrozavodsk Summer 2009. Ufa SATU Contest | 591 | 324 |
| 1934 | Black Spot | Ural FU Championship 2012 | 283 | 325 |
| 1060 | Flip Game | NEERC 2000 | 3008 | 329 |
| 1124 | Mosaic | USU Championship 2001 | 1055 | 329 |
| 1588 | Jamaica | NEERC 2007 Eastern Subregional | 858 | 329 |
| 1828 | Approximation by a Progression | USU Personal Contest 2011 | 452 | 329 |
| 1029 | Ministry | Ural Championship 1999 | 2799 | 333 |
| 1470 | UFOs | Petrozavodsk Summer 2006. Ural+Orel Contest | 983 | 336 |
| 1783 | Nuclear Arms Race | Ural SU Championship 2010 | 483 | 341 |
| 1137 | Bus Routes | NEERC 2001 Central Subregional | 1017 | 342 |
| 1406 | Next Number | Autumn School Contest 2005 | 1098 | 342 |
| 1604 | Country of Fools | USU Personal Contest 2008 | 779 | 343 |
| 1031 | Railway Tickets | Ural Championship 1999 | 3099 | 344 |
| 1941 | Scary Martian Word | Ural FU Personal Contest 2012 | 332 | 344 |
| 1483 | Table Football | USU Championship 2006 | 951 | 346 |
| 1963 | Kite | Ural FU Personal Contest 2013 | 233 | 346 |
| 1185 | Wall | NEERC 2001 | 1010 | 347 |
| 1140 | Swamp Incident | NEERC 2001 Central Subregional | 995 | 349 |
| 1227 | Rally Championship | NEERC 2002 Central Subregional | 1020 | 349 |
| 1759 | Long-Livers | USU Personal Contest 2010 | 534 | 349 |
| 1262 | Pseudo-Roman Number | Autumn School Contest 2003 | 1035 | 351 |
| 1631 | Drunk King 2 | USU Championship 2008 | 687 | 352 |
| 1007 | Code Words | USU Championship 1997 | 3035 | 354 |
| 1055 | Combinations | NEERC 2000 Central Subregional | 2895 | 360 |
| 1090 | In the Army Now | USU Local Contest. March 2001 | 2493 | 360 |
| 1218 | Episode N-th: The Jedi Tournament | USU Championship 2002 | 988 | 360 |
| 1888 | Pilot Work Experience | NEERC 2011 Eastern Subregional | 350 | 362 |
| 1292 | Mars Space Stations | Spring School Contest 2004 | 1008 | 363 |
| 1574 | Mathematicians and brackets | Autumn School Contest 2007 | 780 | 363 |
| 1431 | Diplomas | USU Personal Contest 2006 | 978 | 365 |
| 1223 | Chernobyl’ Eagle on a Roof | USU Championship 2002 | 967 | 367 |
| 1282 | Game Tree | NEERC 2003 Central Subregional | 990 | 367 |
| 1156 | Two Rounds | Ural Championship 2001. Round 2 | 944 | 368 |
| 1320 | Graph Decomposition | Ural Championship 2004. Round 2 | 996 | 368 |
| 1403 | Courier | Autumn School Contest 2005 | 1014 | 370 |
| 1261 | Tips | Autumn School Contest 2003 | 977 | 371 |
| 1450 | Russian Pipelines | Timus Top Coders: Second Challenge | 939 | 373 |
| 1774 | Barber of the Army of Mages | Ural SU Championship 2010 | 441 | 373 |
| 1860 | Fiborial | Petrozavodsk Summer 2011. USU Contest | 346 | 375 |
| 1246 | Tethered Dog | USU Personal Contest 2003 | 953 | 376 |
| 1562 | GM-pineapple | USU Championship 2007 | 753 | 377 |
| 1920 | Titan Ruins: the Infinite Power of Magic | NEERC 2012 Eastern Subregional | 246 | 377 |
| 1229 | Strong Brickwork | NEERC 2002 Central Subregional | 936 | 380 |
| 1651 | Shortest Subchain | NEERC 2008 Eastern Subregional | 628 | 381 |
| 1665 | Dean's Financial Pyramid | Petrozavodsk Winter 2008. USU Contest | 613 | 381 |
| 1015 | Test the Difference! | USU Local Contest. 1999 | 2801 | 382 |
| 1346 | Intervals of Monotonicity | USU Championship 2004 | 975 | 382 |
| 1039 | Anniversary Party | USU Championship 2000 | 2757 | 383 |
| 1259 | How to Become Star? | Autumn School Contest 2003 | 947 | 383 |
| 1078 | Segments | Winter Mathematical Festival Varna 2001 | 2478 | 384 |
| 1115 | Ships | Bulgarian Online Contest September 2001 | 899 | 385 |
| 1521 | War Games 2 | Timus Top Coders: Third Challenge | 831 | 385 |
| 1094 | E-screen | USU Local Contest. March 2001 | 2321 | 386 |
| 1003 | Parity | Central European Olympiad in Informatics 1999 | 2759 | 389 |
| 1176 | Hyperchannels | USU Personal Contest 2002 | 898 | 389 |
| 1279 | Warehouse | NEERC 2003 Central Subregional | 932 | 390 |
| 1971 | Graphics Settings | Ural Championship 2013 | 191 | 390 |
| 1160 | Network | NEERC 2001 Northern Subregional | 906 | 393 |
| 1992 | CVS | NEERC 2013 Eastern Subregional | 149 | 393 |
| 1217 | Unlucky Tickets | USU Championship 2002 | 898 | 395 |
| 1732 | Ministry of Truth | USU Championship 2009 | 505 | 395 |
| 1517 | Freedom of Choice | Timus Top Coders: Third Challenge | 809 | 396 |
| 1289 | One Way Ticket | USU Personal Contest 2004 | 919 | 398 |
| 1489 | Points on a Parallelepiped | Autumn School Contest 2006 | 823 | 398 |
| 1571 | Interpreters | USU Championship 2007 | 713 | 398 |
| 1038 | Spell Checker | USU Championship 2000 | 2636 | 401 |
| 1407 | One-two, One-two | Autumn School Contest 2005 | 934 | 401 |
| 1107 | Warehouse Problem | Tetrahedron Team Online Contest May 2001 | 854 | 402 |
| 1480 | Coupons | USU Championship 2006 | 816 | 402 |
| 1111 | Squares | Bulgarian Online Contest September 2001 | 859 | 403 |
| 1602 | Elevator | USU Personal Contest 2008 | 658 | 405 |
| 1700 | Awakening | Ural Championship 2009 | 546 | 407 |
| 1141 | RSA Attack | | 847 | 410 |
| 1356 | Something Easier | Spring School Contest 2005 | 908 | 410 |
| 1089 | Verification with a Vocabulary | Spring School Contest 2001 | 2291 | 412 |
| 1427 | SMS | Timus Top Coders: First Challenge | 869 | 413 |
| 1202 | Rectangles Travel | USU Local Contest. March 2002 | 841 | 416 |
| 1287 | Mars Canals | USU Personal Contest 2004 | 879 | 416 |
| 1181 | Cutting a Painted Polygon | USU Personal Contest 2002 | 838 | 417 |
| 1641 | Duties | Autumn School Contest 2008 | 566 | 423 |
| 1507 | Difficult Decision | NEERC 2006 Eastern Subregional | 767 | 424 |
| 1128 | Partition into Groups | USU Championship 2001 | 814 | 425 |
| 1523 | K-inversions | Petrozavodsk Winter 2007. D.Gozman Contest | 733 | 425 |
| 1019 | Line Painting | USU Local Contest. 1999 | 2487 | 430 |
| 1077 | Travelling Tours | | 804 | 430 |
| 1350 | Canteen | Spring School Contest 2005 | 865 | 430 |
| 1728 | Curse on Team.GOV | Ural Regional School Programming Contest 2009 | 467 | 430 |
| 1776 | Anniversary Firework | Ural SU Championship 2010 | 380 | 431 |
| 1871 | Seismic Waves | Ural FU Championship 2011 | 297 | 431 |
| 1900 | Brainwashing Device | Ural Championship 2012 | 215 | 431 |
| 1291 | Gear-wheels | Spring School Contest 2004 | 846 | 432 |
| 1942 | Attack at the Orbit | Ural FU Personal Contest 2012 | 262 | 432 |
| 1495 | One-two, One-two 2 | Autumn School Contest 2006 | 755 | 433 |
| 1051 | Simple Game on a Grid | USU Local Contest. March 2000 | 2406 | 434 |
| 1809 | Chapaev and Potatoes | NEERC 2010 Eastern Subregional | 373 | 434 |
| 1513 | Lemon Tale | Timus Top Coders: Third Challenge | 733 | 435 |
| 1643 | Attack of the Dark Fortress | Autumn School Contest 2008 | 546 | 438 |
| 1928 | Another Ecology Problem | Ural Regional School Programming Contest 2012 | 207 | 441 |
| 1221 | Malevich Strikes Back! | USU Championship 2002 | 800 | 443 |
| 1884 | Way to the University | Ural Regional School Programming Contest 2011 | 287 | 443 |
| 1890 | Money out of Thin Air | NEERC 2011 Eastern Subregional | 284 | 443 |
| 1129 | Door Painting | USU Championship 2001 | 777 | 445 |
| 1990 | Podracing | NEERC 2013 Eastern Subregional | 130 | 447 |
| 1891 | Language Ocean | NEERC 2011 Eastern Subregional | 281 | 448 |
| 1838 | Samurai's Stroke | Ural Championship 2011 | 319 | 450 |
| 1189 | Pairs of Integers | NEERC 2001 | 768 | 454 |
| 1258 | Pool | Autumn School Contest 2003 | 793 | 456 |
| 1416 | Confidential | USU Championship 2005 | 816 | 456 |
| 1535 | The Hobbit or There and Back Again | USU Personal Contest 2007 | 679 | 456 |
| 1729 | Dead Man's Chest | Ural Regional School Programming Contest 2009 | 440 | 456 |
| 1252 | Sorting the Tombstones | USU Local Contest. March 2003 | 775 | 461 |
| 1072 | Routing | USU Personal Contest 2001 | 2078 | 462 |
| 1752 | Tree 2 | Petrozavodsk Summer 2009. Ufa SATU Contest | 412 | 462 |
| 1870 | Zinium 2 | Ural FU Championship 2011 | 276 | 462 |
| 1980 | Road to Investor | Ural Championship 2013 | 160 | 462 |
| 1519 | Formula 1 | Timus Top Coders: Third Challenge | 684 | 466 |
| 1145 | Rope in the Labyrinth | DSAP Vietnam Online Contest November 2001 | 741 | 468 |
| 1428 | Jedi Riddle | Timus Top Coders: First Challenge | 759 | 472 |
| 1091 | Tmutarakan Exams | USU Local Contest. March 2001 | 1895 | 473 |
| 1236 | Decoding Task | NEERC 2002 | 751 | 473 |
| 1410 | Crack | USU Championship 2005 | 787 | 473 |
| 2009 | Canteen Line | Ural Regional School Programming Contest 2013 | 119 | 475 |
| 1095 | Nikifor 3 | USU Local Contest. March 2001 | 1881 | 476 |
| 1066 | Garland | NEERC 2000 | 2054 | 480 |
| 1098 | Questions | | 1782 | 481 |
| 1754 | Explosion in a Pyramid | USU Personal Contest 2010 | 384 | 482 |
| 1525 | Path | Petrozavodsk Winter 2007. D.Gozman Contest | 642 | 484 |
| 1579 | Coat Transportation | Autumn School Contest 2007 | 583 | 484 |
| 1343 | Fairy Tale | USU Championship 2004 | 759 | 489 |
| 1273 | Tie | USU Championship 2003 | 735 | 492 |
| 1212 | Battleship | Autumn School Contest 2002 | 718 | 493 |
| 1401 | Gamers | Autumn School Contest 2005 | 750 | 498 |
| 1628 | White Streaks | USU Championship 2008 | 483 | 498 |
| 1103 | Pencils and Circles | Tetrahedron Team Online Contest May 2001 | 686 | 499 |
| 1162 | Currency Exchange | NEERC 2001 Northern Subregional | 687 | 504 |
| 1182 | Team Them Up! | NEERC 2001 | 690 | 505 |
| 1056 | Computer Net | NEERC 2000 Central Subregional | 2049 | 508 |
| 1939 | First Seal | Ural FU Championship 2012 | 177 | 509 |
| 1155 | Troubleduons | Ural Championship 2001. Round 2 | 679 | 510 |
| 1892 | Morning in Koltsovo | NEERC 2011 Eastern Subregional | 245 | 511 |
| 1866 | Poetic Foot | Ural FU Championship 2011 | 247 | 515 |
| 1366 | Presents | Ural Championship 2005. Round 2 | 720 | 516 |
| 1334 | Checkers | Autumn School Contest 2004 | 711 | 518 |
| 1803 | The Czechs' Rifles | NEERC 2010 Eastern Subregional | 311 | 518 |
| 1806 | Mobile Telegraphs | NEERC 2010 Eastern Subregional | 310 | 519 |
| 1822 | Hugo II's War | USU Personal Contest 2011 | 283 | 519 |
| 1962 | In Chinese Restaurant | Ural FU Personal Contest 2013 | 152 | 519 |
| 1721 | Two Sides of the Same Coin | NEERC 2009 Eastern Subregional | 386 | 520 |
| 1238 | Folding | NEERC 2002 | 683 | 521 |
| 1329 | Galactic History | Autumn School Contest 2004 | 706 | 522 |
| 1069 | Prufer Code | USU Personal Contest 2001 | 1834 | 523 |
| 1326 | Bottle Taps | Ural Championship 2004. Round 2 | 697 | 524 |
| 1322 | Spy | Ural Championship 2004. Round 2 | 697 | 525 |
| 1600 | Airport | USU Personal Contest 2008 | 505 | 526 |
| 1710 | Boris, You Are Wrong! | Ural Championship 2009 | 420 | 526 |
| 1143 | Electric Path | DSAP Vietnam Online Contest November 2001 | 655 | 528 |
| 1994 | The Emperor's plan | NEERC 2013 Eastern Subregional | 108 | 530 |
| 1045 | Funny Game | USU Local Contest. March 2000 | 1965 | 531 |
| 1767 | The House of Doctor Dee | Ural Championship 2010 | 341 | 532 |
| 1959 | GOV-internship 3 | Petrozavodsk Winter 2013. Kontur Cup | 130 | 532 |
| 1430 | Crime and Punishment | Timus Top Coders: First Challenge | 671 | 533 |
| 1101 | Robot in the Field | Tetrahedron Team Online Contest May 2001 | 641 | 534 |
| 1158 | Censored! | NEERC 2001 Northern Subregional | 647 | 535 |
| 1966 | Cycling Roads | Ural FU Personal Contest 2013 | 147 | 535 |
| 1903 | Unidentified Ships | Ural Championship 2012 | 171 | 536 |
| 1064 | Binary Search | NEERC 2000 | 1836 | 538 |
| 1577 | E-mail | Autumn School Contest 2007 | 522 | 540 |
| 1027 | D++ Again | Autumn School Contest 2000 | 1974 | 541 |
| 1400 | Cellular Characters | Autumn School Contest 2005 | 690 | 541 |
| 1861 | Graveyard in Deyja | Petrozavodsk Summer 2011. USU Contest | 235 | 545 |
| 1061 | Buffer Manager | NEERC 2000 | 1807 | 546 |
| 1918 | Titan Ruins: Artful Manipulations | NEERC 2012 Eastern Subregional | 166 | 548 |
| 1605 | Devil's Sequence | USU Personal Contest 2008 | 483 | 549 |
| 1701 | Ostap and Partners | Ural Championship 2009 | 402 | 549 |
| 1071 | Nikifor 2 | USU Personal Contest 2001 | 1745 | 550 |
| 1926 | The Tournament of Intelligences | Ural Regional School Programming Contest 2012 | 164 | 550 |
| 1059 | Expression | NEERC 2000 Central Subregional | 1883 | 553 |
| 1085 | Meeting | Spring School Contest 2001 | 1702 | 553 |
| 1314 | Chase in Subway | Ural Championship 2004. Round 1 | 656 | 556 |
| 1698 | Square Country 5 | Petrozavodsk Winter 2009. USU Contest | 401 | 556 |
| 2004 | Scientists from Spilkovo | Ural Regional School Programming Contest 2013 | 100 | 557 |
| 1316 | Electronic Auction | Ural Championship 2004. Round 1 | 654 | 558 |
| 1550 | Dean's Pyramid 3 | Ural Championship 2007 | 541 | 559 |
| 1940 | Not So Simple Years | Ural FU Championship 2012 | 160 | 559 |
| 1760 | Infernal Work | USU Personal Contest 2010 | 326 | 565 |
| 1650 | Billionaires | NEERC 2008 Eastern Subregional | 417 | 569 |
| 1988 | Planet Ocean Landing | Open Ural FU Championship 2013 | 101 | 569 |
| 1070 | Local Time | USU Personal Contest 2001 | 1683 | 570 |
| 1832 | Arirang Show | Ural Championship 2011 | 249 | 571 |
| 1534 | Football in Gondor | USU Personal Contest 2007 | 539 | 572 |
| 1448 | Lighting in Hogwarts | Ural Championship 2006 | 611 | 575 |
| 1659 | Regular Triangles | NEERC 2008 Eastern Subregional | 412 | 576 |
| 1932 | The Secret of Identifier | Ural FU Championship 2012 | 155 | 576 |
| 1619 | Big Brother | Petrozavodsk Winter 2008. ITMO Contest | 426 | 577 |
| 1690 | Army of Mages | Petrozavodsk Winter 2009. USU Contest | 386 | 578 |
| 1351 | Good Gnusmas – Dead Gnusmas | Spring School Contest 2005 | 639 | 580 |
| 1445 | Christmas gifts | Ural Championship 2006 | 606 | 580 |
| 1713 | Key Substrings | NEERC 2009 Eastern Subregional | 345 | 580 |
| 1682 | Crazy Professor | USU Personal Contest 2009 | 386 | 581 |
| 1592 | Chinese Watches | NEERC 2007 Eastern Subregional | 480 | 582 |
| 1004 | Sightseeing Trip | Central European Olympiad in Informatics 1999 | 1840 | 583 |
| 1554 | Multiplicative Functions | Petrozavodsk Summer 2007. NSU Contest | 485 | 585 |
| 1054 | Hanoi Tower | NEERC 2000 Central Subregional | 1772 | 587 |
| 1986 | Paul’s Salads | Open Ural FU Championship 2013 | 97 | 590 |
| 1439 | Battle with You-Know-Who | Ural Championship 2006 | 594 | 591 |
| 1172 | Ship Routes | Romanian Online Contest December 2001 | 584 | 592 |
| 1414 | Astronomical Database | USU Championship 2005 | 621 | 597 |
| 1421 | Credit Operations | Timus Top Coders: First Challenge | 598 | 597 |
| 1706 | Cipher Message 2 | Ural Championship 2009 | 369 | 597 |
| 1755 | Cake | USU Personal Contest 2010 | 304 | 604 |
| 1375 | Bill Clevers | Ural Championship 2005. Round 1 | 615 | 608 |
| 1067 | Disk Tree | NEERC 2000 | 1615 | 610 |
| 1773 | Metro to Every Home | Ural Championship 2010 | 295 | 612 |
| 1198 | Jobbery | | 607 | 613 |
| 1974 | Similar Tunes | Ural Championship 2013 | 117 | 618 |
| 1096 | Get the Right Route Plate! | USU Local Contest. March 2001 | 1440 | 621 |
| 1174 | Weird Permutations | Romanian Online Contest December 2001 | 556 | 621 |
| 1437 | Gasoline Station | USU Personal Contest 2006 | 571 | 621 |
| 1830 | Help in the RNOS | Ural Championship 2011 | 226 | 627 |
| 1088 | Ilya Murometz | Spring School Contest 2001 | 1493 | 630 |
| 1309 | Dispute | Ural Championship 2004. Round 1 | 578 | 630 |
| 1362 | Classmates 2 | Ural Championship 2005. Round 2 | 588 | 630 |
| 1872 | Spacious Office | Ural FU Championship 2011 | 200 | 630 |
| 1076 | Trash | | 1508 | 632 |
| 1961 | Cantonese Dialect | Ural FU Personal Contest 2013 | 123 | 632 |
| 1606 | Slalom | USU Personal Contest 2008 | 417 | 634 |
| 1234 | Bricks | NEERC 2002 | 557 | 635 |
| 1358 | Cables | Spring School Contest 2005 | 582 | 636 |
| 1325 | Dirt | Ural Championship 2004. Round 2 | 571 | 637 |
| 1633 | Hippogriffs | USU Championship 2008 | 372 | 642 |
| 1553 | Caves and Tunnels | Petrozavodsk Summer 2007. NSU Contest | 440 | 643 |
| 1186 | Chemical Reactions | NEERC 2001 | 539 | 644 |
| 1443 | Rails | Ural Championship 2006 | 545 | 644 |
| 2008 | Swifty | Ural Regional School Programming Contest 2013 | 85 | 645 |
| 1248 | Sequence Sum | USU Personal Contest 2003 | 550 | 646 |
| 1912 | Titan Ruins: Passing through Walls | NEERC 2012 Eastern Subregional | 139 | 647 |
| 1253 | Necrologues | USU Local Contest. March 2003 | 547 | 650 |
| 1564 | Counting Ones | USU Championship 2007 | 432 | 651 |
| 1724 | Origin of Man Clarified | Ural Regional School Programming Contest 2009 | 305 | 651 |
| 1927 | Herbs and Magic | Ural Regional School Programming Contest 2012 | 135 | 660 |
| 1629 | Trip | USU Championship 2008 | 360 | 663 |
| 1332 | Genie Bomber | Autumn School Contest 2004 | 553 | 664 |
| 1452 | Pascal vs. C++ | Timus Top Coders: Second Challenge | 519 | 669 |
| 1780 | Gray Code | Ural SU Championship 2010 | 241 | 670 |
| 1775 | Space Bowling | Ural SU Championship 2010 | 239 | 676 |
| 1440 | Training Schedule | Ural Championship 2006 | 517 | 678 |
| 1772 | Ski-Trails for Robots | Ural Championship 2010 | 265 | 679 |
| 1474 | About Frogs | Petrozavodsk Summer 2006. Ural+Orel Contest | 481 | 680 |
| 1254 | Die Hard | USU Local Contest. March 2003 | 522 | 681 |
| 1465 | Pawn Game | Petrozavodsk Winter 2006. USU Contest | 486 | 684 |
| 1805 | Chapaev and a Cipher Grille | NEERC 2010 Eastern Subregional | 233 | 684 |
| 1875 | Angry Birds | Ural Regional School Programming Contest 2011 | 182 | 685 |
| 1034 | Queens in Peaceful Positions | Ural Championship 1999 | 1549 | 686 |
| 1921 | Chaos and Order | Ural Regional School Programming Contest 2012 | 129 | 689 |
| 1301 | Cube in Labyrinth | Ural Championship 1998 | 522 | 695 |
| 1500 | Pass Licenses | NEERC 2006 Eastern Subregional | 464 | 695 |
| 1542 | Autocompletion | Ural Championship 2007 | 433 | 695 |
| 1825 | Ifrit Bomber 2 | USU Personal Contest 2011 | 208 | 698 |
| 1646 | Godzilla Strikes Back! | Autumn School Contest 2008 | 337 | 703 |
| 1286 | Starship Travel | USU Personal Contest 2004 | 513 | 706 |
| 1274 | Fractional Arithmetic | NEERC 2003 Central Subregional | 509 | 707 |
| 1168 | Radio Stations | Romanian Online Contest December 2001 | 485 | 711 |
| 1305 | Convex Hull | Ural Championship 1998 | 510 | 711 |
| 1230 | Introspective Program | NEERC 2002 Central Subregional | 494 | 712 |
| 1159 | Fence | NEERC 2001 Northern Subregional | 483 | 713 |
| 1611 | Decimation | Ural Championship 2008 | 365 | 713 |
| 1037 | Memory Management | USU Championship 2000 | 1474 | 714 |
| 1614 | National Project “Trams” | Ural Championship 2008 | 364 | 715 |
| 1558 | Periodical Numbers | Petrozavodsk Summer 2007. NSU Contest | 393 | 718 |
| 1235 | Cricket Field | NEERC 2002 | 490 | 720 |
| 1371 | Cargo Agency | Ural Championship 2005. Round 1 | 515 | 721 |
| 1016 | Cube on the Walk | USU Local Contest. 1999 | 1476 | 722 |
| 1817 | Merry-go-round | Petrozavodsk Summer 2010. Tavrida NU Contest | 206 | 726 |
| 1405 | Goat in the Garden 5 | Autumn School Contest 2005 | 511 | 727 |
| 1486 | Equal Squares | USU Championship 2006 | 445 | 730 |
| 1689 | Fisherman and Barbell | USU Personal Contest 2009 | 305 | 730 |
| 1943 | Space Rummy | Ural FU Personal Contest 2012 | 151 | 730 |
| 1587 | Flying Pig | NEERC 2007 Eastern Subregional | 380 | 732 |
| 1057 | Amount of Degrees | NEERC 2000 Central Subregional | 1418 | 733 |
| 1738 | Computer Security | USU Championship 2009 | 267 | 735 |
| 1250 | Sea Burial | USU Local Contest. March 2003 | 475 | 746 |
| 1468 | Fraction | Petrozavodsk Summer 2006. Ural+Orel Contest | 436 | 748 |
| 1983 | Nectar Gathering | Open Ural FU Championship 2013 | 74 | 752 |
| 1169 | Pairs | Romanian Online Contest December 2001 | 457 | 753 |
| 1512 | Zinium | Timus Top Coders: Third Challenge | 417 | 757 |
| 1836 | Babel Fish | Ural Championship 2011 | 185 | 759 |
| 1705 | Gangster Hares | Ural Championship 2009 | 287 | 761 |
| 1905 | Travel in Time | Ural Championship 2012 | 117 | 764 |
| 1484 | Film Rating | USU Championship 2006 | 424 | 765 |
| 1042 | Central Heating | USU Championship 2000 | 1368 | 769 |
| 1979 | Resources Distribution | Ural Championship 2013 | 92 | 769 |
| 1936 | Roshambo | Ural FU Championship 2012 | 113 | 773 |
| 1424 | Minibus | Timus Top Coders: First Challenge | 457 | 777 |
| 1392 | Dreaming of Stars | | 475 | 781 |
| 1463 | Happiness to People! | Petrozavodsk Winter 2006. USU Contest | 423 | 784 |
| 1132 | Square Root | | 437 | 785 |
| 1165 | Subnumber | NEERC 2001 Northern Subregional | 438 | 785 |
| 1434 | Buses in Vasyuki | USU Personal Contest 2006 | 449 | 786 |
| 1647 | Divide an Island! | Autumn School Contest 2008 | 299 | 789 |
| 1715 | Another Ball Killer | NEERC 2009 Eastern Subregional | 250 | 792 |
| 1824 | Ifrit Bomber | USU Personal Contest 2011 | 182 | 792 |
| 1996 | Cipher Message 3 | NEERC 2013 Eastern Subregional | 69 | 792 |
| 1030 | Titanic | Ural Championship 1999 | 1334 | 796 |
| 1379 | Cups Transportation | Ural Championship 2005. Round 1 | 464 | 799 |
| 1608 | Lucky Tickets 2008 | Ural Championship 2008 | 322 | 805 |
| 1716 | Alternative Solution | NEERC 2009 Eastern Subregional | 245 | 807 |
| 1456 | Jedi Riddle 2 | Timus Top Coders: Second Challenge | 427 | 809 |
| 1883 | Ent's Birthday | Ural Regional School Programming Contest 2011 | 152 | 812 |
| 1547 | Password Search | Ural Championship 2007 | 369 | 813 |
| 1105 | Observers Coloring | Tetrahedron Team Online Contest May 2001 | 415 | 816 |
| 1720 | Summit Online Judge | NEERC 2009 Eastern Subregional | 242 | 817 |
| 1857 | Alice and Bandersnatch | Petrozavodsk Summer 2011. USU Contest | 153 | 820 |
| 1593 | Square Country. Version 2 | | 273 | 822 |
| 1268 | Little Chu | USU Championship 2003 | 434 | 826 |
| 1976 | Game Optimization | Ural Championship 2013 | 85 | 826 |
| 1863 | Peaceful Atom | Ural FU Championship 2011 | 150 | 827 |
| 1269 | Obscene Words Filter | USU Championship 2003 | 431 | 832 |
| 1154 | Mages Contest | Ural Championship 2001. Round 2 | 409 | 839 |
| 1937 | Davy Jones’s Organ | Ural FU Championship 2012 | 103 | 842 |
| 1498 | Stroke at Full Speed | Autumn School Contest 2006 | 381 | 847 |
| 1324 | Extra Spaces | Ural Championship 2004. Round 2 | 424 | 853 |
| 1985 | Prime Square | Open Ural FU Championship 2013 | 64 | 854 |
| 1006 | Square Frames | USU Championship 1997 | 1249 | 855 |
| 1530 | Ones and Zeroes | Petrozavodsk Winter 2007. D.Gozman Contest | 359 | 855 |
| 1233 | Amusing Numbers | NEERC 2002 | 410 | 857 |
| 1625 | Hankel Matrix | Petrozavodsk Winter 2008. ITMO Contest | 283 | 858 |
| 1147 | Shaping Regions | DSAP Vietnam Online Contest November 2001 | 398 | 861 |
| 1578 | Mammoth Hunt | Autumn School Contest 2007 | 320 | 870 |
| 1761 | Binary Palindrome | USU Personal Contest 2010 | 208 | 870 |
| 1436 | Billboard | USU Personal Contest 2006 | 404 | 872 |
| 1276 | Train | NEERC 2003 Central Subregional | 410 | 874 |
| 1245 | Pictures | USU Personal Contest 2003 | 403 | 876 |
| 1862 | Very Wealthy Mole | Ural FU Championship 2011 | 141 | 876 |
| 1373 | Pictura ex Machina | Ural Championship 2005. Round 1 | 422 | 877 |
| 1879 | GOV-internship 2 | Ural Regional School Programming Contest 2011 | 139 | 879 |
| 1323 | Classmates | Ural Championship 2004. Round 2 | 411 | 880 |
| 1887 | Frequent Flyer Card | NEERC 2011 Eastern Subregional | 138 | 880 |
| 1630 | Talisman | USU Championship 2008 | 267 | 886 |
| 1462 | Uncle Scrooge's Gold | Petrozavodsk Winter 2006. USU Contest | 372 | 888 |
| 1970 | 皇后像廣場 | Ural FU Personal Contest 2013 | 85 | 894 |
| 1364 | LaraKiller | Ural Championship 2005. Round 2 | 409 | 900 |
| 1784 | Rounders | Ural SU Championship 2010 | 177 | 900 |
| 1827 | Indigenous Wars | USU Personal Contest 2011 | 159 | 900 |
| 1768 | Circular Strings | Ural Championship 2010 | 197 | 902 |
| 1730 | ManBearPig | Ural Regional School Programming Contest 2009 | 217 | 904 |
| 1580 | Dean's Debts | Autumn School Contest 2007 | 306 | 908 |
| 1342 | Enterprise | USU Championship 2004 | 403 | 910 |
| 1745 | Yet Another Answer | Petrozavodsk Summer 2009. Ufa SATU Contest | 204 | 910 |
| 1696 | Salary for Robots | Petrozavodsk Winter 2009. USU Contest | 239 | 917 |
| 1913 | Titan Ruins: Alignment of Forces | NEERC 2012 Eastern Subregional | 95 | 918 |
| 1948 | The Robot on the Line | Ural FU Personal Contest 2012 | 118 | 918 |
| 1278 | “… Connecting People” | NEERC 2003 Central Subregional | 389 | 920 |
| 1285 | Thread in a Hyperspace | USU Personal Contest 2004 | 388 | 928 |
| 1237 | Evacuation Plan | NEERC 2002 | 377 | 932 |
| 1907 | Coffee and Buns | Ural Championship 2012 | 94 | 933 |
| 1575 | Yekaterinburg Subway 2 | Autumn School Contest 2007 | 297 | 935 |
| 1743 | Domino Sorting | Petrozavodsk Summer 2009. Ufa SATU Contest | 198 | 937 |
| 1389 | Roadworks | Petrozavodsk Summer 2005. Moscow+Ural Contest | 393 | 940 |
| 1175 | Strange Sequence | USU Personal Contest 2002 | 364 | 944 |
| 1422 | Fireflies | Timus Top Coders: First Challenge | 374 | 945 |
| 1722 | Observation Deck | Ural Regional School Programming Contest 2009 | 207 | 945 |
| 1844 | Warlord of the Army of Mages | Petrozavodsk Summer 2010. USU Contest | 131 | 952 |
| 1151 | Radiobeacons | Ural Championship 2001. Round 2 | 358 | 955 |
| 1277 | Cops and Thieves | NEERC 2003 Central Subregional | 370 | 966 |
| 1418 | Military Story | USU Championship 2005 | 378 | 971 |
| 1679 | Scrooge's Tower | Petrozavodsk Summer 2008. USU Contest | 232 | 972 |
| 1040 | Airline Company | USU Championship 2000 | 1076 | 976 |
| 1949 | The Best Picture in the Galaxy | Ural FU Personal Contest 2012 | 110 | 979 |
| 1591 | Abstract Thinking | NEERC 2007 Eastern Subregional | 280 | 984 |
| 1130 | Nikifor's Walk | USU Championship 2001 | 345 | 987 |
| 1968 | Glass Pyramid | Ural FU Personal Contest 2013 | 75 | 989 |
| 1539 | Intelligence Data | USU Personal Contest 2007 | 307 | 990 |
| 1687 | Numismatics for Fun | USU Personal Contest 2009 | 222 | 991 |
| 1791 | Uncle Styopa and Buses | Ural Regional School Programming Contest 2010 | 159 | 991 |
| 1398 | Bishop and Pawn | | 315 | 993 |
| 1435 | Financial Error | USU Personal Contest 2006 | 353 | 994 |
| 1461 | Christmas Garland | Petrozavodsk Winter 2006. USU Contest | 330 | 998 |
| 1331 | Vladislava | Autumn School Contest 2004 | 363 | 1002 |
| 1813 | Random Shuffler | Petrozavodsk Summer 2010. Tavrida NU Contest | 146 | 1006 |
| 1518 | Jedi Riddle 3 | Timus Top Coders: Third Challenge | 311 | 1008 |
| 1311 | Stable Construction | Ural Championship 2004. Round 1 | 357 | 1009 |
| 1451 | Beerhouse Tale | Timus Top Coders: Second Challenge | 340 | 1010 |
| 1811 | Dual-SIM Phone | Petrozavodsk Summer 2010. Tavrida NU Contest | 145 | 1012 |
| 1570 | Eating High | USU Championship 2007 | 272 | 1021 |
| 1075 | Thread in a Space | USU Personal Contest 2001 | 934 | 1022 |
| 1339 | Babies | USU Championship 2004 | 357 | 1025 |
| 1965 | Pear Trees | Ural FU Personal Contest 2013 | 71 | 1037 |
| 1560 | Elementary Symmetric Functions | Petrozavodsk Summer 2007. NSU Contest | 266 | 1049 |
| 1569 | Networking the “Iset” | USU Championship 2007 | 262 | 1058 |
| 1790 | Searching for the Truth | Ural Regional School Programming Contest 2010 | 148 | 1060 |
| 1750 | Pakhom and the Gully | Petrozavodsk Summer 2009. Ufa SATU Contest | 173 | 1065 |
| 1666 | Vasya Ferrari | Petrozavodsk Winter 2008. USU Contest | 211 | 1075 |
| 1511 | Fiscal Operations | Timus Top Coders: Third Challenge | 289 | 1082 |
| 1173 | Lazy Snail | Romanian Online Contest December 2001 | 314 | 1086 |
| 1317 | Hail | Ural Championship 2004. Round 2 | 330 | 1089 |
| 2007 | Mutants versus Machines | Ural Regional School Programming Contest 2013 | 46 | 1094 |
| 1951 | Complex Root | Petrozavodsk Winter 2013. Kontur Cup | 57 | 1113 |
| 1341 | Device | USU Championship 2004 | 323 | 1129 |
| 1855 | Trade Guilds of Erathia | Petrozavodsk Summer 2011. USU Contest | 108 | 1132 |
| 1458 | War Games | Timus Top Coders: Second Challenge | 299 | 1145 |
| 1766 | Humpty Dumpty | Ural Championship 2010 | 153 | 1146 |
| 1595 | Perfect Sequence | | 181 | 1150 |
| 1686 | Photovoltaic Spaceship | USU Personal Contest 2009 | 190 | 1150 |
| 1472 | Martian Army | Petrozavodsk Summer 2006. Ural+Orel Contest | 280 | 1151 |
| 1699 | Turning Turtles | Petrozavodsk Winter 2009. USU Contest | 188 | 1154 |
| 1357 | Teakettle 1.0 for Dummies | Spring School Contest 2005 | 316 | 1155 |
| 1584 | Pharaohs’ Secrets | NEERC 2007 Eastern Subregional | 237 | 1155 |
| 1919 | Titan Ruins: Transformation of Cylinders | NEERC 2012 Eastern Subregional | 73 | 1162 |
| 1719 | Kill the Shaitan-Boss | NEERC 2009 Eastern Subregional | 167 | 1163 |
| 1669 | Universal Word | Petrozavodsk Winter 2008. USU Contest | 193 | 1170 |
| 1657 | Cube Snake | NEERC 2008 Eastern Subregional | 197 | 1174 |
| 1627 | Join | Petrozavodsk Winter 2008. ITMO Contest | 204 | 1175 |
| 1544 | Classmates 3 | Ural Championship 2007 | 251 | 1180 |
| 1307 | Archiver | Ural Championship 2004. Round 1 | 303 | 1183 |
| 1447 | Portkey Network | Ural Championship 2006 | 292 | 1183 |
| 1453 | Queen | Timus Top Coders: Second Challenge | 289 | 1183 |
| 1747 | Kingdom Inspection | Petrozavodsk Summer 2009. Ufa SATU Contest | 154 | 1188 |
| 1552 | Brainfuck | Petrozavodsk Summer 2007. NSU Contest | 233 | 1191 |
| 1408 | Polynomial Multiplication | Autumn School Contest 2005 | 306 | 1198 |
| 1035 | Cross-stitch | Ural Championship 1999 | 876 | 1205 |
| 1487 | Chinese Football | USU Championship 2006 | 264 | 1212 |
| 1808 | Chapaev at the Planet Ocean | NEERC 2010 Eastern Subregional | 127 | 1213 |
| 1386 | Maze | Petrozavodsk Summer 2005. Moscow+Ural Contest | 302 | 1214 |
| 1359 | Construction | Spring School Contest 2005 | 299 | 1218 |
| 1321 | Floor Indicator | Ural Championship 2004. Round 2 | 293 | 1222 |
| 1953 | Biggest Inscribed Ellipse | Petrozavodsk Winter 2013. Kontur Cup | 51 | 1222 |
| 1956 | Fire Signals | Petrozavodsk Winter 2013. Kontur Cup | 50 | 1242 |
| 1736 | Chinese Hockey | USU Championship 2009 | 153 | 1249 |
| 1097 | Square Country 2 | USU Local Contest. March 2001 | 709 | 1254 |
| 1444 | Elephpotamus | Ural Championship 2006 | 275 | 1258 |
| 1540 | Battle for the Ring | USU Personal Contest 2007 | 239 | 1261 |
| 1620 | Clever House | Petrozavodsk Winter 2008. ITMO Contest | 188 | 1270 |
| 1467 | Sum of Degrees | Petrozavodsk Winter 2006. USU Contest | 257 | 1271 |
| 1538 | Towers of Guard | USU Personal Contest 2007 | 236 | 1276 |
| 1908 | Brute-force Search | Ural Championship 2012 | 66 | 1277 |
| 1310 | ACM Diagnostics | Ural Championship 2004. Round 1 | 279 | 1281 |
| 1533 | Fat Hobbits | USU Personal Contest 2007 | 235 | 1281 |
| 1531 | Zones on a Plane | Petrozavodsk Winter 2007. D.Gozman Contest | 236 | 1283 |
| 1065 | Frontier | NEERC 2000 | 763 | 1284 |
| 1328 | Fireball | Autumn School Contest 2004 | 280 | 1289 |
| 1050 | Preparing an Article | USU Local Contest. March 2000 | 802 | 1291 |
| 1177 | Like Comparisons | USU Personal Contest 2002 | 263 | 1294 |
| 1546 | Japanese Sorting | Ural Championship 2007 | 227 | 1305 |
| 1807 | Cartridges for Maxim | NEERC 2010 Eastern Subregional | 117 | 1308 |
| 1818 | Fair Fishermen | Petrozavodsk Summer 2010. Tavrida NU Contest | 110 | 1308 |
| 1171 | Lost in Space | Romanian Online Contest December 2001 | 257 | 1317 |
| 1281 | River Basin | NEERC 2003 Central Subregional | 268 | 1321 |
| 1360 | Philosophical Dispute | Ural Championship 2005. Round 2 | 268 | 1356 |
| 1240 | Heroes of Might and Magic | NEERC 2002 | 253 | 1368 |
| 1886 | Trip 2 | NEERC 2011 Eastern Subregional | 85 | 1371 |
| 1770 | The Party of Ural Champions | Ural Championship 2010 | 126 | 1373 |
| 1802 | Cube Puzzle | NEERC 2010 Eastern Subregional | 111 | 1373 |
| 1499 | Kerchiefs | Autumn School Contest 2006 | 230 | 1380 |
| 1960 | Palindromes and Super Abilities | Petrozavodsk Winter 2013. Kontur Cup | 44 | 1380 |
| 1946 | Chinese Hockey 3 | Ural FU Personal Contest 2012 | 74 | 1399 |
| 1266 | Kirchhoff's Law | USU Championship 2003 | 251 | 1405 |
| 1099 | Work Scheduling | | 570 | 1408 |
| 1265 | Mirror | USU Championship 2003 | 250 | 1411 |
| 1746 | Hyperrook | Petrozavodsk Summer 2009. Ufa SATU Contest | 128 | 1412 |
| 1947 | Meander | Ural FU Personal Contest 2012 | 73 | 1415 |
| 1299 | Psylonians | Spring School Contest 2004 | 248 | 1433 |
| 1527 | Bad Roads | Petrozavodsk Winter 2007. D.Gozman Contest | 210 | 1434 |
| 1318 | Logarithm | Ural Championship 2004. Round 2 | 248 | 1435 |
| 1412 | Autumn Tide | USU Championship 2005 | 252 | 1438 |
| 1764 | Transsib | Ural Championship 2010 | 119 | 1448 |
| 1831 | Tsyfirkin's Lesson | Ural Championship 2011 | 92 | 1451 |
| 1043 | Cover an Arc | USU Championship 2000 | 718 | 1456 |
| 1393 | Average Common Prefix | | 246 | 1458 |
| 1762 | Search for a Hiding-Place | USU Personal Contest 2010 | 120 | 1460 |
| 1345 | HTML | USU Championship 2004 | 246 | 1469 |
| 1170 | Desert | Romanian Online Contest December 2001 | 229 | 1472 |
| 1419 | Maps of the Island Worlds | USU Championship 2005 | 246 | 1472 |
| 1565 | The Duel for Three | USU Championship 2007 | 184 | 1484 |
| 1441 | From the History of Gringotts Bank | Ural Championship 2006 | 229 | 1494 |
| 1676 | Mortal Kombat | Petrozavodsk Summer 2008. USU Contest | 146 | 1508 |
| 1347 | Blog | Spring School Contest 2005 | 240 | 1512 |
| 1526 | Martian Plates | Petrozavodsk Winter 2007. D.Gozman Contest | 198 | 1517 |
| 1950 | Martian Farmlands | Ural FU Personal Contest 2012 | 67 | 1526 |
| 1251 | Cemetery Manager | USU Local Contest. March 2003 | 226 | 1534 |
| 1241 | Inlay Cutters | NEERC 2002 | 224 | 1540 |
| 1734 | Endgame Database | USU Championship 2009 | 122 | 1542 |
| 1782 | Jack's New Word | Ural SU Championship 2010 | 99 | 1544 |
| 1894 | Non-Flying Weather | NEERC 2011 Eastern Subregional | 74 | 1550 |
| 1852 | Cube in a Cube in a Cube | Petrozavodsk Summer 2011. USU Contest | 76 | 1554 |
| 1969 | Hong Kong Tram | Ural FU Personal Contest 2013 | 44 | 1556 |
| 1476 | Lunar Code | Petrozavodsk Summer 2006. Ural+Orel Contest | 203 | 1567 |
| 1449 | Credit Operations 2 | Timus Top Coders: Second Challenge | 214 | 1579 |
| 1568 | Train Car Sorting | USU Championship 2007 | 171 | 1590 |
| 1670 | Asterisk | Petrozavodsk Summer 2008. USU Contest | 138 | 1590 |
| 1337 | Bureaucracy | Autumn School Contest 2004 | 225 | 1591 |
| 1841 | Cableways | Petrozavodsk Summer 2010. USU Contest | 74 | 1598 |
| 1851 | GOV-internship | Petrozavodsk Summer 2011. USU Contest | 73 | 1610 |
| 1583 | Cheese | NEERC 2007 Eastern Subregional | 167 | 1612 |
| 1702 | Crossroad | Ural Championship 2009 | 130 | 1615 |
| 1485 | Football and Lie | USU Championship 2006 | 195 | 1620 |
| 1839 | The Mentaculus | Ural Championship 2011 | 80 | 1644 |
| 1516 | Nostalgia | Timus Top Coders: Third Challenge | 186 | 1650 |
| 1615 | Tram Solitaire | Ural Championship 2008 | 152 | 1651 |
| 1816 | Troubles with Pollard | Petrozavodsk Summer 2010. Tavrida NU Contest | 85 | 1652 |
| 1916 | Titan Ruins: Waiting for Stability | NEERC 2012 Eastern Subregional | 48 | 1662 |
| 1062 | Triathlon | NEERC 2000 | 586 | 1664 |
| 1749 | Periodic Sum | Petrozavodsk Summer 2009. Ufa SATU Contest | 107 | 1665 |
| 1977 | Energy Wall | Ural Championship 2013 | 37 | 1669 |
| 1849 | Rabbit Hunt 2 | Petrozavodsk Summer 2010. USU Contest | 70 | 1677 |
| 1610 | Cactuses | Ural Championship 2008 | 149 | 1682 |
| 1420 | Integer-Valued Complex Division | USU Championship 2005 | 212 | 1697 |
| 1469 | No Smoking! | Petrozavodsk Summer 2006. Ural+Orel Contest | 186 | 1703 |
| 1387 | Vasya's Dad | Petrozavodsk Summer 2005. Moscow+Ural Contest | 211 | 1714 |
| 1046 | Geometrical Dreams | USU Local Contest. March 2000 | 600 | 1718 |
| 1488 | ACM Poker | USU Championship 2006 | 183 | 1721 |
| 1508 | Japanese Puzzle | NEERC 2006 Eastern Subregional | 181 | 1725 |
| 1707 | Hypnotoad's Secret | Ural Championship 2009 | 121 | 1726 |
| 1338 | Automobiles | USU Championship 2004 | 207 | 1733 |
| 1257 | Hyphenation | Autumn School Contest 2003 | 200 | 1745 |
| 1492 | Vasya's Dad 2 | Autumn School Contest 2006 | 179 | 1753 |
| 1781 | Clean Code | Ural SU Championship 2010 | 86 | 1753 |
| 1459 | Archer's Travel | Petrozavodsk Winter 2006. USU Contest | 183 | 1758 |
| 1812 | The Island of Bad Luck 2 | Petrozavodsk Summer 2010. Tavrida NU Contest | 79 | 1763 |
| 1144 | The Emperor's Riddle | DSAP Vietnam Online Contest November 2001 | 188 | 1773 |
| 1417 | Space Poker 2 | USU Championship 2005 | 202 | 1777 |
| 1867 | Nanotechnologies | Ural FU Championship 2011 | 64 | 1787 |
| 1382 | Game with Cards | Petrozavodsk Summer 2005. Moscow+Ural Contest | 200 | 1804 |
| 1304 | Parallelepiped | Ural Championship 1998 | 195 | 1805 |
| 1093 | Darts | USU Local Contest. March 2001 | 487 | 1815 |
| 1744 | The Captain's Squad | Petrozavodsk Summer 2009. Ufa SATU Contest | 97 | 1821 |
| 1378 | Artificial Intelligence | Ural Championship 2005. Round 1 | 197 | 1829 |
| 1514 | National Park | Timus Top Coders: Third Challenge | 166 | 1838 |
| 1703 | Robotic Arm | Ural Championship 2009 | 113 | 1838 |
| 1163 | Chapaev | NEERC 2001 Northern Subregional | 180 | 1850 |
| 1677 | Monkey at the Keyboard | Petrozavodsk Summer 2008. USU Contest | 117 | 1853 |
| 1757 | Gold Bars | USU Personal Contest 2010 | 92 | 1860 |
| 1425 | Queen 2 | Timus Top Coders: First Challenge | 183 | 1880 |
| 1634 | Spider Mite | USU Championship 2008 | 120 | 1887 |
| 1675 | Lunar Code 2 | Petrozavodsk Summer 2008. USU Contest | 114 | 1898 |
| 1187 | Statistical Trouble | NEERC 2001 | 176 | 1901 |
| 1216 | Two Pawns and One King | USU Championship 2002 | 178 | 1909 |
| 1532 | Lost in Translation | USU Personal Contest 2007 | 154 | 1914 |
| 1972 | Game Testing | Ural Championship 2013 | 31 | 1914 |
| 1522 | Factory | Petrozavodsk Winter 2007. D.Gozman Contest | 154 | 1924 |
| 1667 | Square Country 3 | Petrozavodsk Winter 2008. USU Contest | 113 | 1932 |
| 1455 | Freedom of Speech | Timus Top Coders: Second Challenge | 173 | 1933 |
| 1882 | Old Nokia | Ural Regional School Programming Contest 2011 | 58 | 1935 |
| 1833 | Hopes of Rowing | Ural Championship 2011 | 66 | 1947 |
| 1503 | Polynomial | NEERC 2006 Eastern Subregional | 157 | 1973 |
| 1850 | Space Tourism | Petrozavodsk Summer 2010. USU Contest | 58 | 1973 |
| 1188 | Library | NEERC 2001 | 167 | 1998 |
| 1835 | Swamp Doctor | Ural Championship 2011 | 64 | 2000 |
| 1396 | Maximum. Version 2 | | 165 | 2007 |
| 1063 | Domino Puzzle | NEERC 2000 | 482 | 2019 |
| 1288 | Astrolocation | USU Personal Contest 2004 | 173 | 2019 |
| 1557 | Network Attack | Petrozavodsk Summer 2007. NSU Contest | 133 | 2025 |
| 1231 | Turing: One, Two, Three, … | NEERC 2002 Central Subregional | 167 | 2029 |
| 1148 | Building Towers | DSAP Vietnam Online Contest November 2001 | 162 | 2041 |
| 1232 | Asteroid Landing | NEERC 2002 Central Subregional | 165 | 2052 |
| 1673 | Admission to Exam | Petrozavodsk Summer 2008. USU Contest | 104 | 2064 |
| 1092 | Transversal | USU Local Contest. March 2001 | 427 | 2065 |
| 1267 | Yekaterinburg Subway | USU Championship 2003 | 167 | 2072 |
| 1541 | Chase | USU Personal Contest 2007 | 139 | 2107 |
| 1978 | E-Lite | Ural Championship 2013 | 27 | 2121 |
| 1315 | MDPAR and MIIAR | Ural Championship 2004. Round 1 | 164 | 2128 |
| 1041 | Nikifor | USU Championship 2000 | 483 | 2150 |
| 1652 | Banking Crisis | NEERC 2008 Eastern Subregional | 103 | 2151 |
| 1074 | Very Short Problem | USU Personal Contest 2001 | 438 | 2154 |
| 1504 | Good Manners | NEERC 2006 Eastern Subregional | 143 | 2154 |
| 1543 | Dance Revolution | Ural Championship 2007 | 133 | 2154 |
| 1758 | Bald Spot Revisited 2 | USU Personal Contest 2010 | 78 | 2156 |
| 1549 | Another Japanese Puzzle | Ural Championship 2007 | 132 | 2169 |
| 1256 | Cemetery Guard | USU Local Contest. March 2003 | 156 | 2181 |
| 1270 | Unicube | USU Championship 2003 | 157 | 2197 |
| 1865 | The Island of Märket | Ural FU Championship 2011 | 50 | 2204 |
| 1655 | Somali Pirates | NEERC 2008 Eastern Subregional | 99 | 2230 |
| 1481 | Winning Chances | USU Championship 2006 | 138 | 2244 |
| 1361 | Spaceology vs. Chronistics | Ural Championship 2005. Round 2 | 157 | 2257 |
| 1368 | Goat in the Garden 3 | Ural Championship 2005. Round 2 | 157 | 2257 |
| 1397 | Points Game | | 138 | 2257 |
| 1958 | Algorithm of Professor Ivanov | Petrozavodsk Winter 2013. Kontur Cup | 23 | 2259 |
| 1739 | Faryuks | USU Championship 2009 | 80 | 2262 |
| 1859 | Last Season of Team.GOV | Petrozavodsk Summer 2011. USU Contest | 48 | 2304 |
| 1814 | Continued Fraction | Petrozavodsk Summer 2010. Tavrida NU Contest | 58 | 2308 |
| 1735 | Theft of the Century | USU Championship 2009 | 78 | 2313 |
| 1955 | Boss, I Can See You! | Petrozavodsk Winter 2013. Kontur Cup | 22 | 2329 |
| 1284 | Space Poker | USU Personal Contest 2004 | 148 | 2338 |
| 1664 | Pipeline Transportation | Petrozavodsk Winter 2008. USU Contest | 90 | 2376 |
| 1829 | Routing Tables | USU Personal Contest 2011 | 54 | 2377 |
| 1275 | Knights of the Round Table | NEERC 2003 Central Subregional | 144 | 2384 |
| 1843 | Cutting a Parallelepiped | Petrozavodsk Summer 2010. USU Contest | 46 | 2396 |
| 1704 | Demodulation | Ural Championship 2009 | 84 | 2405 |
| 1895 | Steaks on Board | NEERC 2011 Eastern Subregional | 44 | 2412 |
| 1714 | Mnemonics and Palindromes 2 | NEERC 2009 Eastern Subregional | 75 | 2422 |
| 1938 | Caribbean Triangle | Ural FU Championship 2012 | 29 | 2438 |
| 2006 | Kirill the Gardener | Ural Regional School Programming Contest 2013 | 15 | 2452 |
| 1911 | Titan Ruins: Overtaking Fire | NEERC 2012 Eastern Subregional | 29 | 2472 |
| 1609 | Tram Tile | Ural Championship 2008 | 98 | 2476 |
| 1945 | Many-armed Brothers | Ural FU Personal Contest 2012 | 37 | 2499 |
| 1308 | Dean's Pyramid | Ural Championship 2004. Round 1 | 138 | 2502 |
| 1300 | Taxes | Ural Championship 1998 | 137 | 2517 |
| 1454 | Rectangles 2 | Timus Top Coders: Second Challenge | 130 | 2526 |
| 1957 | Mundial | Petrozavodsk Winter 2013. Kontur Cup | 19 | 2570 |
| 1561 | Winnie the Pooh | Petrozavodsk Summer 2007. NSU Contest | 102 | 2585 |
| 1717 | Eligibility Rules | NEERC 2009 Eastern Subregional | 69 | 2606 |
| 1999 | The secret module | NEERC 2013 Eastern Subregional | 14 | 2606 |
| 1975 | Model of the Earth | Ural Championship 2013 | 20 | 2615 |
| 1856 | War and Peace | Petrozavodsk Summer 2011. USU Contest | 41 | 2620 |
| 1312 | Tray | Ural Championship 2004. Round 1 | 131 | 2626 |
| 1239 | Ghost Busters | NEERC 2002 | 127 | 2627 |
| 1694 | Killer Words | Petrozavodsk Winter 2009. USU Contest | 76 | 2656 |
| 1663 | The Hobbit or There and Back Again 2 | Petrozavodsk Winter 2008. USU Contest | 79 | 2670 |
| 1834 | Tennis Racket | Ural Championship 2011 | 45 | 2691 |
| 1520 | Empire Strikes Back | Timus Top Coders: Third Challenge | 111 | 2695 |
| 1637 | Triangle Game 2 | USU Championship 2008 | 80 | 2726 |
| 1681 | Brother Bear's Garden | USU Personal Contest 2009 | 74 | 2737 |
| 1566 | Triangular Postcards | USU Championship 2007 | 94 | 2768 |
| 1858 | Magic Cube | Petrozavodsk Summer 2011. USU Contest | 38 | 2783 |
| 1751 | Improbability Theory | Petrozavodsk Summer 2009. Ufa SATU Contest | 59 | 2824 |
| 1914 | Titan Ruins: Serial Control | NEERC 2012 Eastern Subregional | 24 | 2835 |
| 1505 | Oil Transfer | NEERC 2006 Eastern Subregional | 106 | 2841 |
| 1810 | Antiequations | Petrozavodsk Summer 2010. Tavrida NU Contest | 45 | 2853 |
| 1845 | Integer-valued Complex Determinant | Petrozavodsk Summer 2010. USU Contest | 37 | 2855 |
| 1482 | Triangle Game | USU Championship 2006 | 106 | 2864 |
| 1691 | Algorithm Complexity | Petrozavodsk Winter 2009. USU Contest | 69 | 2891 |
| 1411 | 40 Islands Knights | USU Championship 2005 | 120 | 2899 |
| 1695 | Work for Robots | Petrozavodsk Winter 2009. USU Contest | 68 | 2928 |
| 1442 | Floo Powder | Ural Championship 2006 | 108 | 3027 |
| 1622 | Endspiel | Petrozavodsk Winter 2008. ITMO Contest | 73 | 3030 |
| 1623 | Fractal Labyrinth | Petrozavodsk Winter 2008. ITMO Contest | 73 | 3030 |
| 1477 | Airplanes | Petrozavodsk Summer 2006. Ural+Orel Contest | 99 | 3063 |
| 1367 | Top Secret | Ural Championship 2005. Round 2 | 113 | 3065 |
| 1847 | Zamkadye | Petrozavodsk Summer 2010. USU Contest | 33 | 3121 |
| 1395 | Pascal vs. C++. Version 2 | | 103 | 3123 |
| 1616 | Square Country 4 | Ural Championship 2008 | 75 | 3146 |
| 1815 | Farm in San Andreas | Petrozavodsk Summer 2010. Tavrida NU Contest | 39 | 3202 |
| 1438 | Time Limit Exceeded | USU Personal Contest 2006 | 102 | 3223 |
| 1973 | Location Generator | Ural Championship 2013 | 14 | 3269 |
| 1058 | Chocolate | NEERC 2000 Central Subregional | 306 | 3302 |
| 1166 | Funny Card Game | NEERC 2001 Northern Subregional | 101 | 3303 |
| 1909 | Space Recon | Ural Championship 2012 | 19 | 3347 |
| 1632 | Lasers | USU Championship 2008 | 63 | 3361 |
| 1559 | TruCoders Linguistics | Petrozavodsk Summer 2007. NSU Contest | 74 | 3447 |
| 1733 | Forgotten Technology | USU Championship 2009 | 49 | 3450 |
| 1429 | Biscuits | Timus Top Coders: First Challenge | 95 | 3456 |
| 1381 | Cockroaches in the Building | Petrozavodsk Summer 2005. Moscow+Ural Contest | 98 | 3507 |
| 1765 | Error 404 | Ural Championship 2010 | 43 | 3523 |
| 1466 | Magic Square | Petrozavodsk Winter 2006. USU Contest | 86 | 3534 |
| 1509 | Domino Recognition | NEERC 2006 Eastern Subregional | 82 | 3582 |
| 1199 | Mouse | | 76 | 3738 |
| 1464 | Light | Petrozavodsk Winter 2006. USU Contest | 80 | 3770 |
| 1661 | Dodecahedron | Petrozavodsk Winter 2008. USU Contest | 52 | 3832 |
| 1778 | Chinese Hockey 2 | Ural SU Championship 2010 | 33 | 3913 |
| 1380 | Ostap's Chess | Petrozavodsk Summer 2005. Moscow+Ural Contest | 86 | 3946 |
| 1662 | Goat in the Garden 6 | Petrozavodsk Winter 2008. USU Contest | 49 | 4027 |
| 1763 | Expert Flea | Ural Championship 2010 | 36 | 4060 |
| 1529 | Game of Squares | Petrozavodsk Winter 2007. D.Gozman Contest | 67 | 4098 |
| 1967 | Programmer Casino | Ural FU Personal Contest 2013 | 8 | 4105 |
| 1797 | Summit Online Judge. Version 2 | | 14 | 4119 |
| 1954 | Five Palindromes | Petrozavodsk Winter 2013. Kontur Cup | 8 | 4141 |
| 1478 | Spy Satellites | Petrozavodsk Summer 2006. Ural+Orel Contest | 68 | 4280 |
| 1594 | Aztec Treasure | | 41 | 4314 |
| 1271 | Sailing Directions | USU Championship 2003 | 74 | 4367 |
| 1460 | Wires | Petrozavodsk Winter 2006. USU Contest | 66 | 4464 |
| 1340 | Cucaracha | USU Championship 2004 | 74 | 4476 |
| 1344 | Gigantic Turnip | USU Championship 2004 | 74 | 4476 |
| 1697 | Sniper Shot | Petrozavodsk Winter 2009. USU Contest | 41 | 4478 |
| 1801 | The Revolution Cup | NEERC 2010 Eastern Subregional | 27 | 4490 |
| 1771 | A Deputy's Morning | Ural Championship 2010 | 31 | 4554 |
| 1906 | The Lost Civilization | Ural Championship 2012 | 11 | 4621 |
| 1475 | Ryaba Hen | Petrozavodsk Summer 2006. Ural+Orel Contest | 60 | 4769 |
| 1384 | Goat in the Garden 4 | Petrozavodsk Summer 2005. Moscow+Ural Contest | 69 | 4795 |
| 1426 | Rectangles | Timus Top Coders: First Challenge | 65 | 4838 |
| 1473 | Farm 2 | Petrozavodsk Summer 2006. Ural+Orel Contest | 58 | 4909 |
| 1618 | Arrays Printing | Petrozavodsk Winter 2008. ITMO Contest | 39 | 5133 |
| 1848 | Fly Hunt | Petrozavodsk Summer 2010. USU Contest | 16 | 5161 |
| 1391 | Snake | Petrozavodsk Summer 2005. Moscow+Ural Contest | 63 | 5189 |
| 1365 | Testing Calculator | Ural Championship 2005. Round 2 | 61 | 5310 |
| 1853 | Laser Technologies | Petrozavodsk Summer 2011. USU Contest | 15 | 5344 |
| 1621 | Definite Integral | Petrozavodsk Winter 2008. ITMO Contest | 37 | 5351 |
| 1842 | Local Roots | Petrozavodsk Summer 2010. USU Contest | 15 | 5368 |
| 1372 | Death Star | Ural Championship 2005. Round 1 | 57 | 5652 |
| 1668 | Death Star 2 | Petrozavodsk Winter 2008. USU Contest | 31 | 5795 |
| 1479 | Scheduled Checking | Petrozavodsk Summer 2006. Ural+Orel Contest | 45 | 6069 |
| 1649 | Abstractionism to the People | NEERC 2008 Eastern Subregional | 29 | 6232 |
| 1660 | The Island of Bad Luck | Petrozavodsk Winter 2008. USU Contest | 28 | 6253 |
| 1819 | Professional Approach | Petrozavodsk Summer 2010. Tavrida NU Contest | 15 | 6276 |
| 1624 | Go out of here! | Petrozavodsk Winter 2008. ITMO Contest | 29 | 6449 |
| 1596 | Knight Mare | | 8 | 6530 |
| 1674 | Drunk King | Petrozavodsk Summer 2008. USU Contest | 26 | 6536 |
| 1952 | To Kill the Dragon | Petrozavodsk Winter 2013. Kontur Cup | 1 | 6772 |
| 1363 | Halftones | Ural Championship 2005. Round 2 | 45 | 6854 |
| 1653 | Death Conveyor | NEERC 2008 Eastern Subregional | 24 | 7148 |
| 1548 | Sakura and Statistics | Ural Championship 2007 | 33 | 7162 |
| 1536 | Delights of Pipe-weed | USU Personal Contest 2007 | 31 | 7657 |
| 1432 | Twofold Luck | USU Personal Contest 2006 | 34 | 8204 |
| 1840 | Victim of Advertising | Ural Championship 2011 | 8 | 8222 |
| 1678 | Space Poker 3 | Petrozavodsk Summer 2008. USU Contest | 18 | 8403 |
| 1556 | Multishot in the Secret Cow Level | Petrozavodsk Summer 2007. NSU Contest | 23 | 8773 |
| 1376 | Dean's Pyramid 2 | Ural Championship 2005. Round 1 | 33 | 8807 |
| 1626 | Interfering Segment | Petrozavodsk Winter 2008. ITMO Contest | 17 | 9315 |
| 1415 | Mobile Life | USU Championship 2005 | 29 | 9658 |
| 1672 | Droid flies | Petrozavodsk Summer 2008. USU Contest | 13 | 10229 |
| 1693 | Loyd's Problem | Petrozavodsk Winter 2009. USU Contest | 12 | 10382 |
| 1374 | Misere | Ural Championship 2005. Round 1 | 24 | 11138 |
| 1708 | Sum of Digits 2 | Ural Championship 2009 | 10 | 11302 |
| 1555 | Find the Treasure! | Petrozavodsk Summer 2007. NSU Contest | 14 | 12063 |
| 1390 | Shots at Walls | Petrozavodsk Summer 2005. Moscow+Ural Contest | 21 | 12219 |
| 1383 | Flower-garden Designs | Petrozavodsk Summer 2005. Moscow+Ural Contest | 20 | 12626 |
| 1399 | Economical Director | | 15 | 12852 |
| 1524 | Men in Black | Petrozavodsk Winter 2007. D.Gozman Contest | 14 | 13146 |
| 1369 | Cockroach Race | Ural Championship 2005. Round 2 | 13 | 16390 |
| 1388 | Photo | Petrozavodsk Summer 2005. Moscow+Ural Contest | 11 | 18037 |
| 1589 | Sokoban | NEERC 2007 Eastern Subregional | 3 | 21951 |
| 1394 | Ships. Version 2 | | 5 | 25254 |
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