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Problem set


IDTitleSourceAuthorsDifficulty

1000A+B Problem7192518

1001Reverse Root2053818

1785Lost in LocalizationUral Regional School Programming Contest 20101192918

1293EniyaSpring School Contest 20041972121

1409Two GangstersAutumn School Contest 20051896422

1877Bicycle CodesUral Regional School Programming Contest 2011824423

2012About Grisha N.NEERC 2014 Eastern Subregional404223

1820Ural SteaksUSU Personal Contest 2011758527

1787Turn for MEGAUral Regional School Programming Contest 2010751629

2001Mathematicians and BerriesUral Regional School Programming Contest 2013412829

1264WorkdaysAutumn School Contest 20031369930

1197Lonesome KnightSpring School Contest 20021227032

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011574932

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional442835

1639Chocolate 2Autumn School Contest 2008808136

1924Four ImpsUral Regional School Programming Contest 2012412337

1313Some Words about SportUral Championship 2004. Round 1998941

2023Donald is a postmanNEERC 2014 Eastern Subregional226241

1068Sum2563443

12091, 10, 100, 1000...Autumn School Contest 2002933043

1319HotelUral Championship 2004. Round 2928544

1567SMS-spamUSU Championship 2007755844

1225FlagsNEERC 2002 Central Subregional891045

1581TeamworkAutumn School Contest 2007733145

2066Simple ExpressionUral Regional School Programming Contest 2015137246

1263ElectionsAutumn School Contest 2003839948

1585PenguinsNEERC 2007 Eastern Subregional674149

1991The battle near the swampNEERC 2013 Eastern Subregional238651

1100Final StandingsTetrahedron Team Online Contest May 2001747352

1876Centipede's MorningUral Regional School Programming Contest 2011359752

1327FusesAutumn School Contest 2004775553

1881Long problem statementUral Regional School Programming Contest 2011338655

1893A380NEERC 2011 Eastern Subregional333255

1243Divorce of the Seven DwarfsUSU Personal Contest 2003717356

1493One Step from HappinessAutumn School Contest 2006663356

1110PowerBulgarian Online Contest September 2001684457

1349FarmSpring School Contest 2005717058

1607TaxiUSU Personal Contest 2008541658

1496SpammerAutumn School Contest 2006619460

1545HieroglyphsUral Championship 2007574761

1925British Scientists Save the WorldUral Regional School Programming Contest 2012244562

1636Penalty TimeUSU Championship 2008462863

1837Isenbaev's NumberUral Championship 2011318763

1196History ExamSpring School Contest 2002616364

1149Sinus Dances598266

1654Cipher MessageNEERC 2008 Eastern Subregional437766

1723Sandro's BookUral Regional School Programming Contest 2009378667

1563BayanUSU Championship 2007485768

1617Flat SpotsUral Championship 2008459168

2002Test TaskUral Regional School Programming Contest 2013177668

1131CopyingUSU Championship 2001556270

2035Another Dress RehearsalUral Regional School Programming Contest 2014131270

1457Heating MainTimus Top Coders: Second Challenge552971

1025Democracy in DangerAutumn School Contest 20001681572

1224SpiralNEERC 2002 Central Subregional552172

2005Taxi for ProgrammersUral Regional School Programming Contest 2013164473

1792Hamming CodeUral Regional School Programming Contest 2010291575

1083Factorials!!!Spring School Contest 20011395176

1712Cipher GrilleNEERC 2009 Eastern Subregional330077

1935Tears of DrownedUral FU Championship 2012195877

2011Long StatementUral Regional School Programming Contest 2013152279

2031Overturned NumbersUral Regional School Programming Contest 2014115279

1502Domino DotsNEERC 2006 Eastern Subregional461980

1139City BlocksNEERC 2001 Central Subregional476982

1194HandshakesSpring School Contest 2002481982

1106Two TeamsTetrahedron Team Online Contest May 2001467883

1290SabotageSpring School Contest 2004488884

1638BookwormUSU Championship 2008348284

1404Easy to Hack!Autumn School Contest 2005490385

1120Sum of Sequential NumbersAutumn School Contest 2001456486

1119MetroAutumn School Contest 2001447287

1180Stone GameUSU Personal Contest 2002446888

2068Game of NutsUral Regional School Programming Contest 201569690

1601AntiCAPSUSU Personal Contest 2008342792

1902Neo-VeniceUral Championship 2012166292

1297PalindromeSpring School Contest 2004440293

1005Stone PileUSU Championship 19971289594

1146Maximum SumDSAP Vietnam Online Contest November 2001414394

1161StripiesNEERC 2001 Northern Subregional417794

1510OrderNEERC 2006 Eastern Subregional396394

16421D MazeAutumn School Contest 2008304695

1796Amusement ParkUral Regional School Programming Contest 2010231595

2056ScholarshipUral Championship 201579695

2025Line FightingUral Regional School Programming Contest 201494596

1446Sorting HatUral Championship 2006410497

2033DevicesUral Regional School Programming Contest 201493997

1009K-based NumbersUSU Championship 19971227198

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001396198

1644A Whole Lot of WalnutsAutumn School Contest 2008297598

1731DillUral Regional School Programming Contest 2009259598

1786Sandro's BiographyUral Regional School Programming Contest 2010223198

1370MagicianUral Championship 2005. Round 2418799

2010Sasha the Young GrandmasterUral Regional School Programming Contest 20131194100

1203Scientific ConferenceUSU Local Contest. March 20023855102

1214Strange ProcedureAutumn School Contest 20023887102

1118Nontrivial NumbersAutumn School Contest 20013740104

1136ParliamentNEERC 2001 Central Subregional3766104

1228ArrayNEERC 2002 Central Subregional3791105

1020RopeAutumn School Contest 200011325106

1014Product of DigitsUSU Local Contest. 199911199108

1777AnindilyakwaUral SU Championship 20102034108

1873GOV ChroniclesUral Regional School Programming Contest 20111713108

1296HyperjumpSpring School Contest 20043762109

1573AlchemyAutumn School Contest 20073037109

1330IntervalsAutumn School Contest 20043753110

1126Magnetic StormsUSU Championship 20013446113

1192Ball in a DreamSpring School Contest 20023450114

1079MaximumWinter Mathematical Festival Varna 20019273115

1082Gaby IvanushkaSpring School Contest 20019228115

1582BookmakersNEERC 2007 Eastern Subregional2835116

1226esreveR redrONEERC 2002 Central Subregional3417117

1044Lucky Tickets. Easy!USU Championship 200010053118

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional778118

1219Symbolic SequenceUSU Championship 20023314120

1086CryptographySpring School Contest 20018770121

1353Milliard Vasya's FunctionSpring School Contest 20053421121

1711Code NamesNEERC 2009 Eastern Subregional2102121

2018The Debut AlbumNEERC 2014 Eastern Subregional760121

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023223122

1123SalaryAutumn School Contest 20013131125

2000Grand Theft Array VUral Regional School Programming Contest 2013956125

1260Nudnik PhotographerAutumn School Contest 20033217126

1283DwarfUSU Personal Contest 20043183128

1336Problem of Ben BetsalelAutumn School Contest 20043227128

1683FridgeUSU Personal Contest 20092152129

1688Team.GOV!USU Personal Contest 20092148129

1868Prediction ContestUral FU Championship 20111413131

1725Sold Out!Ural Regional School Programming Contest 20091917133

1982Electrification PlanUral FU Championship 2013897135

1022Genealogical TreeAutumn School Contest 20008827136

1352Mersenne PrimesSpring School Contest 20053041136

1021Sacrament of the SumAutumn School Contest 20008599140

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101559140

1964Chinese DialectsUral FU Personal Contest 2013941140

1222Chernobyl’ EaglesUSU Championship 20022818141

1402CocktailsAutumn School Contest 20052957141

1931Excellent TeamUral FU Championship 20121065141

1612Tram ForumUral Championship 20082167144

1740Deer is Better!USU Championship 20091756144

1026Questions and AnswersAutumn School Contest 20008284145

1142RelationsDSAP Vietnam Online Contest November 20012685146

1178Akbardin’s RoadsUSU Personal Contest 20022665147

1576Telephone TariffsAutumn School Contest 20072252147

1084Goat in the GardenSpring School Contest 20017158148

1864Get-Together at Den'sUral FU Championship 20111253148

1984Dummy GuyUral FU Championship 2013816148

1821BiathlonUSU Personal Contest 20111373149

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional792152

2073Log FilesUral Regional School Programming Contest 2015409152

1572Yekaterinozavodsk Great WellAutumn School Contest 20072161153

1167Bicolored HorsesRomanian Online Contest December 20012518155

2069Hard RockUral Regional School Programming Contest 2015399155

1210Kind SpiritsAutumn School Contest 20022552156

1756One and a Half DiggersUSU Personal Contest 20101515158

1073Square CountryUSU Personal Contest 20016783159

1306Sequence MedianUral Championship 19982573159

1709Penguin-AviaUral Championship 20091710160

1295Crazy NotionsSpring School Contest 20042536161

1017StaircasesUSU Local Contest. 19997368163

1135RecruitsNEERC 2001 Central Subregional2376164

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional929164

1157Young TilerUral Championship 2001. Round 22366165

1280Topological SortingNEERC 2003 Central Subregional2456165

1354Palindrome. Again PalindromeSpring School Contest 20052475167

1506Columns of NumbersNEERC 2006 Eastern Subregional2213167

1874Football GoalUral Regional School Programming Contest 20111101167

1878Rubinchik's CubeUral Regional School Programming Contest 20111104167

1613For Fans of StatisticsUral Championship 20081863168

1213Cockroaches!Autumn School Contest 20022332171

1272Non-Yekaterinburg SubwayUSU Championship 20032370171

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101280171

1012K-based Numbers. Version 26955173

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional880173

1586Threeprime NumbersNEERC 2007 Eastern Subregional1893174

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1608175

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional522175

1640Circle of WinterAutumn School Contest 20081647176

1769Old Ural LegendUral Championship 20101341176

1846GCD 2010Petrozavodsk Summer 2010. USU Contest1067176

1944Record of the Attack at the OrbitUral FU Personal Contest 2012825176

1335White ThesisAutumn School Contest 20042322177

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091433177

1413Mars JumperUSU Championship 20052329178

1685OrthographyUSU Personal Contest 20091549179

1800Murphy's LawNEERC 2010 Eastern Subregional1216179

1930Ivan's CarUral Regional School Programming Contest 2012845179

1134CardsNEERC 2001 Central Subregional2168180

1193Queue at the ExamSpring School Contest 20022187180

1102Strange DialogTetrahedron Team Online Contest May 20012110183

1789Searching for the DodecahedronUral Regional School Programming Contest 20101192183

1048Superlong SumsUSU Local Contest. March 20006378184

1133Fibonacci SequenceNEERC 2001 Central Subregional2081187

1207Median on the PlaneUSU Local Contest. March 20022098187

1869New Year CruiseUral FU Championship 2011982188

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1519190

1114BoxesBulgarian Online Contest September 20012042191

1645Ski RaceAutumn School Contest 20081511192

1164FillwordNEERC 2001 Northern Subregional2025193

1208Legendary Teams ContestUSU Local Contest. March 20022015195

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional467195

1152False MirrorsUral Championship 2001. Round 21998196

1423String TaleTimus Top Coders: First Challenge2033197

1885Passenger ComfortNEERC 2011 Eastern Subregional927198

1138Integer PercentageNEERC 2001 Central Subregional1961199

1680The First NonqualifyingUSU Personal Contest 20091394199

1023ButtonsAutumn School Contest 20005980201

1112CoverBulgarian Online Contest September 20011935201

1348Goat in the Garden 2Spring School Contest 20052033204

2065Different SumsUral Regional School Programming Contest 2015302204

1494MonobilliardsAutumn School Contest 20061773210

1987Nested SegmentsUral FU Championship 2013572211

1002Phone NumbersCentral European Olympiad in Informatics 19995688212

1249Ancient NecropolisUSU Local Contest. March 20031880213

1200Horns and HoofsUSU Local Contest. March 20021829215

2070Interesting NumbersUral Regional School Programming Contest 2015286215

2091Natural SelectionUral FU Personal Contest 2014189215

1490Fire CircleAutumn School Contest 20061720216

2024Adventure TimeUral Regional School Programming Contest 2014413218

1183Brackets SequenceNEERC 20011791219

1515CashmasterTimus Top Coders: Third Challenge1662219

1635Mnemonics and PalindromesUSU Championship 20081318221

1052Rabbit HuntUSU Local Contest. March 20005290222

1491Unreal StoryAutumn School Contest 20061663223

1011ConductorsUSU Championship 19975363225

1125HopscotchUSU Championship 20011721226

1737Mnemonics and Palindromes 3USU Championship 20091114226

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015270227

1033LabyrinthUral Championship 19995249228

1795Husband in a ShopUral Regional School Programming Contest 2010955228

1242WerewolfUSU Personal Contest 20031743229

1333Genie Bomber 2Autumn School Contest 20041796229

1204IdempotentsUSU Local Contest. March 20021672235

1049Brave BalloonistsUSU Local Contest. March 20004973236

1122GameAutumn School Contest 20011645236

1889Airport AnnouncementsNEERC 2011 Eastern Subregional771237

1355Bald Spot RevisitedSpring School Contest 20051740238

1150Page NumbersUral Championship 2001. Round 21636239

1191Catch the thief!Spring School Contest 20021628241

1205By the Underground or by Foot?USU Local Contest. March 20021631241

1303Minimal CoverageUral Championship 19981694241

1826MinefieldUSU Personal Contest 2011845241

1922Superhero TeamUral Regional School Programming Contest 2012625241

1247Check a SequenceUSU Personal Contest 20031631245

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1698245

2067Friends and BerriesUral Regional School Programming Contest 2015249245

1108HeritageBulgarian Online Contest September 20011579246

1603EruditeUSU Personal Contest 20081263249

1113JeepBulgarian Online Contest September 20011549251

2003Simple MagicUral Regional School Programming Contest 2013469252

1433DiamondsUSU Personal Contest 20061575253

1109ConferenceBulgarian Online Contest September 20011523255

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014171256

1298KnightSpring School Contest 20041593256

1998The old PadawanNEERC 2013 Eastern Subregional467256

1590Bacon’s CipherNEERC 2007 Eastern Subregional1276257

1010Discrete FunctionUSTU PhysTech Cup 20004679258

1080Map ColoringWinter Mathematical Festival Varna 20014115259

1195Ouths and CrossesSpring School Contest 20021511259

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1376259

1718RejudgeNEERC 2009 Eastern Subregional978259

2095ScrumUral FU Personal Contest 2014152264

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1402266

1658Sum of DigitsNEERC 2008 Eastern Subregional1085266

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031499267

1779The Great TeamUral SU Championship 2010819267

1028StarsUral Championship 19994468268

1823Ideal GasUSU Personal Contest 2011755269

2098Lada PrioraUral FU Personal Contest 2014149269

1087The Time to Take StonesSpring School Contest 20013919270

1684Jack's Last WordUSU Personal Contest 20091018271

1220StacksUSU Championship 20021458272

2021Scarily interesting!NEERC 2014 Eastern Subregional332272

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012548274

1179Numbers in TextUSU Personal Contest 20021425275

1211Collective GuaranteeAutumn School Contest 20021436276

1726VisitsUral Regional School Programming Contest 2009915276

1981Parallel and PerpendicularUral FU Championship 2013434276

1117HierarchyAutumn School Contest 20011405277

1047Simple CalculationsUSU Local Contest. March 20004212279

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest870279

1244GentlemenUSU Personal Contest 20031422281

1537EntsUSU Personal Contest 20071260281

1741Communication FiendUSU Championship 2009893281

2034CaravansUral Regional School Programming Contest 2014313285

1933Guns for Battle!Ural FU Championship 2012522286

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1302287

1032Find a MultipleUral Championship 19993606290

1501Sense of BeautyNEERC 2006 Eastern Subregional1269291

1018Binary Apple TreeUSU Local Contest. 19994103293

1024PermutationsAutumn School Contest 20004101293

1184Cable MasterNEERC 20011335293

1377Lara CroftUral Championship 2005. Round 11417293

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest829293

1753BookshelfUSU Personal Contest 2010813293

1013K-based Numbers. Version 3318294

1053PinocchioNEERC 2000 Central Subregional3941297

1497Cutting a SquareAutumn School Contest 20061242299

1036Lucky Tickets3980301

1551Sumo TournamentUral Championship 20071159301

1215Exactness of Projectile HitAutumn School Contest 20021293306

1989SubpalindromesUral FU Championship 2013391306

1127Colored BricksUSU Championship 20011260308

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional702308

1124MosaicUSU Championship 20011252310

1934Black SpotUral FU Championship 2012478311

1992CVSNEERC 2013 Eastern Subregional382311

1153SupercomputerUral Championship 2001. Round 21250312

1116Piecewise Constant FunctionAutumn School Contest 20011241313

1190Bar of ChocolateSpring School Contest 20021251313

1137Bus RoutesNEERC 2001 Central Subregional1233315

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014281316

1294Mars SatellitesSpring School Contest 20041281317

1941Scary Martian WordUral FU Personal Contest 2012454317

1227Rally ChampionshipNEERC 2002 Central Subregional1248318

1793Tray 2Ural Regional School Programming Contest 2010679320

2046The First Day at SchoolUral Championship 2015230320

1588JamaicaNEERC 2007 Eastern Subregional1022321

1904The Lessons of the PastUral Championship 2012468323

1521War Games 2Timus Top Coders: Third Challenge1116325

1008Image EncodingUSTU PhysTech Cup 20003699326

1121BranchesAutumn School Contest 20011190326

1320Graph DecompositionUral Championship 2004. Round 21248326

1302Delta-waveUral Championship 19981245327

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest826332

1029MinistryUral Championship 19993137333

1185WallNEERC 20011166336

1450Russian PipelinesTimus Top Coders: Second Challenge1166336

1517Freedom of ChoiceTimus Top Coders: Third Challenge1082336

1201Which Day Is It?USU Local Contest. March 20021160337

1604Country of FoolsUSU Personal Contest 2008932337

1406Next NumberAutumn School Contest 20051225339

1218Episode N-th: The Jedi TournamentUSU Championship 20021165340

1060Flip GameNEERC 20003251341

2026Dean and ScheduleUral Regional School Programming Contest 2014260341

1346Intervals of MonotonicityUSU Championship 20041207342

1160NetworkNEERC 2001 Northern Subregional1158343

1648YachtsAutumn School Contest 2008841343

1156Two RoundsUral Championship 2001. Round 21133344

1223Chernobyl’ Eagle on a RoofUSU Championship 20021150345

1431DiplomasUSU Personal Contest 20061136350

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional338351

1031Railway TicketsUral Championship 19993391353

1282Game TreeNEERC 2003 Central Subregional1144353

1090In the Army NowUSU Local Contest. March 20012841354

1651Shortest SubchainNEERC 2008 Eastern Subregional813354

1246Tethered DogUSU Personal Contest 20031122355

1261TipsAutumn School Contest 20031132356

1140Swamp IncidentNEERC 2001 Central Subregional1087357

1483Table FootballUSU Championship 20061035358

1262Pseudo-Roman NumberAutumn School Contest 20031121360

1292Mars Space StationsSpring School Contest 20041120363

1007Code WordsUSU Championship 19973312364

1828Approximation by a ProgressionUSU Personal Contest 2011555365

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest970366

1574Mathematicians and bracketsAutumn School Contest 2007899366

1901Space ElevatorsUral Championship 2012412366

2047MathsUral Championship 2015199367

1495One-two, One-two 2Autumn School Contest 2006998371

1403CourierAutumn School Contest 20051109374

1055CombinationsNEERC 2000 Central Subregional3117375

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional483376

1141RSA Attack1029377

1176HyperchannelsUSU Personal Contest 20021035377

1078SegmentsWinter Mathematical Festival Varna 20012822378

1854Negotiations with ParthiansPetrozavodsk Summer 2011. USU Contest489378

1995Illegal spicesNEERC 2013 Eastern Subregional313378

1356Something EasierSpring School Contest 20051085380

1039Anniversary PartyUSU Championship 20003113381

1759Long-LiversUSU Personal Contest 2010622382

1783Nuclear Arms RaceUral SU Championship 2010569382

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional234382

1229Strong BrickworkNEERC 2002 Central Subregional1034383

1259How to Become Star?Autumn School Contest 20031051383

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest629385

1003ParityCentral European Olympiad in Informatics 19993119387

1963KiteUral FU Personal Contest 2013333387

1279WarehouseNEERC 2003 Central Subregional1039388

1289One Way TicketUSU Personal Contest 20041041390

2063Black and WhiteUral Regional School Programming Contest 2015153390

1923Scary PoliticsUral Regional School Programming Contest 2012380393

1115ShipsBulgarian Online Contest September 2001983394

1217Unlucky TicketsUSU Championship 20021000396

1562GM-pineappleUSU Championship 2007832396

1631Drunk King 2USU Championship 2008731396

1111SquaresBulgarian Online Contest September 2001975397

1407One-two, One-twoAutumn School Contest 20051043397

1489Points on a ParallelepipedAutumn School Contest 2006932397

1427SMSTimus Top Coders: First Challenge1004398

1287Mars CanalsUSU Personal Contest 20041016399

1015Test the Difference!USU Local Contest. 19992994401

1860FiborialPetrozavodsk Summer 2011. USU Contest460401

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest699403

1774Barber of the Army of MagesUral SU Championship 2010538403

1343Fairy TaleUSU Championship 20041018404

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014217405

1094E-screenUSU Local Contest. March 20012467407

1350CanteenSpring School Contest 20051012407

2030Awesome Backup SystemUral Regional School Programming Contest 2014216407

1077Travelling Tours942411

1107Warehouse ProblemTetrahedron Team Online Contest May 2001934411

1252Sorting the TombstonesUSU Local Contest. March 2003964413

1221Malevich Strikes Back!USU Championship 2002952415

1602ElevatorUSU Personal Contest 2008754415

1732Ministry of TruthUSU Championship 2009603415

1128Partition into GroupsUSU Championship 2001926418

1291Gear-wheelsSpring School Contest 2004970418

1038Spell CheckerUSU Championship 20002808422

1571InterpretersUSU Championship 2007779422

1507Difficult DecisionNEERC 2006 Eastern Subregional869423

1513Lemon TaleTimus Top Coders: Third Challenge855424

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001913425

1480CouponsUSU Championship 2006871425

1942Attack at the OrbitUral FU Personal Contest 2012335426

2062Ambitious ExperimentUral Regional School Programming Contest 2015139426

1416ConfidentialUSU Championship 2005963428

1700AwakeningUral Championship 2009633428

1519Formula 1Timus Top Coders: Third Challenge844429

1181Cutting a Painted PolygonUSU Personal Contest 2002907430

1089Verification with a VocabularySpring School Contest 20012448432

1202Rectangles TravelUSU Local Contest. March 2002904432

1258PoolAutumn School Contest 2003927434

1019Line PaintingUSU Local Contest. 19992739439

1776Anniversary FireworkUral SU Championship 2010490442

1641DutiesAutumn School Contest 2008649443

1890Money out of Thin AirNEERC 2011 Eastern Subregional406446

1900Brainwashing DeviceUral Championship 2012336446

2071Juice CocktailsUral Regional School Programming Contest 2015131450

1129Door PaintingUSU Championship 2001857452

1410CrackUSU Championship 2005912452

1643Attack of the Dark FortressAutumn School Contest 2008636452

1051Simple Game on a GridUSU Local Contest. March 20002531463

1535The Hobbit or There and Back AgainUSU Personal Contest 2007759465

1728Curse on Team.GOVUral Regional School Programming Contest 2009539466

1238FoldingNEERC 2002846468

1072RoutingUSU Personal Contest 20012294469

1155TroubleduonsUral Championship 2001. Round 2827469

1189Pairs of IntegersNEERC 2001828471

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional455471

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional312478

1971Graphics SettingsUral Championship 2013260478

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Contest179478

1326Bottle TapsUral Championship 2004. Round 2845480

1091Tmutarakan ExamsUSU Local Contest. March 20012086481

1162Currency ExchangeNEERC 2001 Northern Subregional806481

1273TieUSU Championship 2003837481

1329Galactic HistoryAutumn School Contest 2004850481

1316Electronic AuctionUral Championship 2004. Round 1837484

1428Jedi RiddleTimus Top Coders: First Challenge823484

1236Decoding TaskNEERC 2002815485

1401GamersAutumn School Contest 2005850486

1525PathPetrozavodsk Winter 2007. D.Gozman Contest727487

2078Bowling gameUral Championship 201683489

1103Pencils and CirclesTetrahedron Team Online Contest May 2001782490

1884Way to the UniversityUral Regional School Programming Contest 2011370490

1628White StreaksUSU Championship 2008587491

1430Crime and PunishmentTimus Top Coders: First Challenge810492

1579Coat TransportationAutumn School Contest 2007659497

1095Nikifor 3USU Local Contest. March 20012016498

1098Questions1924499

1322SpyUral Championship 2004. Round 2811500

1212BattleshipAutumn School Contest 2002785502

2099Space InvaderUral FU Personal Contest 201475503

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional498505

1891Language OceanNEERC 2011 Eastern Subregional357505

2074Timus problems classifierQualification of eastern subregional contest 201596506

1182Team Them Up!NEERC 2001769507

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup253507

1158Censored!NEERC 2001 Northern Subregional762509

1066GarlandNEERC 20002166511

1870Zinium 2Ural FU Championship 2011354513

1439Battle with You-Know-WhoUral Championship 2006764514

1871Seismic WavesUral FU Championship 2011353514

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014169514

1577E-mailAutumn School Contest 2007635515

1056Computer NetNEERC 2000 Central Subregional2264516

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest638516

1980Road to InvestorUral Championship 2013240517

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014168517

2048HistoryUral Championship 2015138518

1729Dead Man's ChestUral Regional School Programming Contest 2009482519

1754Explosion in a PyramidUSU Personal Contest 2010453521

2004Scientists from SpilkovoUral Regional School Programming Contest 2013222521

1045Funny GameUSU Local Contest. March 20002238523

1069Prufer CodeUSU Personal Contest 20012049525

1414Astronomical DatabaseUSU Championship 2005783525

1334CheckersAutumn School Contest 2004776526

1600AirportUSU Personal Contest 2008590528

1366PresentsUral Championship 2005. Round 2776530

1314Chase in SubwayUral Championship 2004. Round 1757535

2009Canteen LineUral Regional School Programming Contest 2013215537

1143Electric PathDSAP Vietnam Online Contest November 2001715541

1101Robot in the FieldTetrahedron Team Online Contest May 2001706543

2064CaterpillarsUral Regional School Programming Contest 2015107543

1362Classmates 2Ural Championship 2005. Round 2753546

1400Cellular CharactersAutumn School Contest 2005755547

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional160548

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005744552

1928Another Ecology ProblemUral Regional School Programming Contest 2012267553

1534Football in GondorUSU Personal Contest 2007634555

2081Faulty dialUral Championship 201672555

1605Devil's SequenceUSU Personal Contest 2008560556

1004Sightseeing TripCentral European Olympiad in Informatics 19992163557

1027D++ AgainAutumn School Contest 20002145559

1437Gasoline StationUSU Personal Contest 2006707560

1760Infernal WorkUSU Personal Contest 2010420561

1838Samurai's StrokeUral Championship 2011350561

1698Square Country 5Petrozavodsk Winter 2009. USU Contest483563

1448Lighting in HogwartsUral Championship 2006695565

1465Pawn GamePetrozavodsk Winter 2006. USU Contest665565

1966Cycling RoadsUral FU Personal Contest 2013225565

1375Bill CleversUral Championship 2005. Round 1727567

1822Hugo II's WarUSU Personal Contest 2011353567

1803The Czechs' RiflesNEERC 2010 Eastern Subregional376568

1085MeetingSpring School Contest 20011856569

1710Boris, You Are Wrong!Ural Championship 2009474569

1064Binary SearchNEERC 20001937571

1071Nikifor 2USU Personal Contest 20011879573

1713Key SubstringsNEERC 2009 Eastern Subregional437573

1172Ship RoutesRomanian Online Contest December 2001674574

1421Credit OperationsTimus Top Coders: First Challenge693574

1962In Chinese RestaurantUral FU Personal Contest 2013221574

1061Buffer ManagerNEERC 20001923576

1682Crazy ProfessorUSU Personal Contest 2009472578

1806Mobile TelegraphsNEERC 2010 Eastern Subregional369578

1650BillionairesNEERC 2008 Eastern Subregional493579

1550Dean's Pyramid 3Ural Championship 2007596581

1592Chinese WatchesNEERC 2007 Eastern Subregional554586

1059ExpressionNEERC 2000 Central Subregional1984588

1706Cipher Message 2Ural Championship 2009456591

1067Disk TreeNEERC 20001863593

1070Local TimeUSU Personal Contest 20011815593

1939First SealUral FU Championship 2012245596

1358CablesSpring School Contest 2005687597

1445Christmas giftsUral Championship 2006652601

1990PodracingNEERC 2013 Eastern Subregional192604

1701Ostap and PartnersUral Championship 2009445605

1325DirtUral Championship 2004. Round 2667606

1659Regular TrianglesNEERC 2008 Eastern Subregional470606

1690Army of MagesPetrozavodsk Winter 2009. USU Contest448606

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Contest139606

1767The House of Doctor DeeUral Championship 2010382608

1309DisputeUral Championship 2004. Round 1664609

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest538611

1892Morning in KoltsovoNEERC 2011 Eastern Subregional293612

1866Poetic FootUral FU Championship 2011292618

1054Hanoi TowerNEERC 2000 Central Subregional1883620

1198Jobbery662622

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest471622

1332Genie BomberAutumn School Contest 2004646630

1903Unidentified ShipsUral Championship 2012235630

1861Graveyard in DeyjaPetrozavodsk Summer 2011. USU Contest287635

1076Trash1670640

1248Sequence SumUSU Personal Contest 2003618641

1542AutocompletionUral Championship 2007539641

1174Weird PermutationsRomanian Online Contest December 2001598646

1254Die HardUSU Local Contest. March 2003612647

1452Pascal vs. C++Timus Top Coders: Second Challenge600647

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009384649

1234BricksNEERC 2002605651

1371Cargo AgencyUral Championship 2005. Round 1631652

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional225654

1096Get the Right Route Plate!USU Local Contest. March 20011530655

1606SlalomUSU Personal Contest 2008474655

1253NecrologuesUSU Local Contest. March 2003603657

1940Not So Simple YearsUral FU Championship 2012219663

1943Space RummyUral FU Personal Contest 2012212663

1994The Emperor's planNEERC 2013 Eastern Subregional174663

1186Chemical ReactionsNEERC 2001581667

1088Ilya MurometzSpring School Contest 20011578668

1564Counting OnesUSU Championship 2007486672

1286Starship TravelUSU Personal Contest 2004594678

1500Pass LicensesNEERC 2006 Eastern Subregional539678

1486Equal SquaresUSU Championship 2006541680

1932The Secret of IdentifierUral FU Championship 2012213681

1443RailsUral Championship 2006574682

1961Cantonese DialectUral FU Personal Contest 2013183688

1755CakeUSU Personal Contest 2010340689

1168Radio StationsRomanian Online Contest December 2001559691

2008SwiftyUral Regional School Programming Contest 2013165691

2060Subpalindrome pairsPalindromic Contest 93692

1872Spacious OfficeUral FU Championship 2011259694

1274Fractional ArithmeticNEERC 2003 Central Subregional574697

1633HippogriffsUSU Championship 2008411697

1772Ski-Trails for RobotsUral Championship 2010331699

1440Training ScheduleUral Championship 2006558701

1773Metro to Every HomeUral Championship 2010330701

1250Sea BurialUSU Local Contest. March 2003563702

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup180702

1132Square Root546705

1305Convex HullUral Championship 1998571706

1057Amount of DegreesNEERC 2000 Central Subregional1648708

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest521708

1230Introspective ProgramNEERC 2002 Central Subregional553710

1832Arirang ShowUral Championship 2011274712

1301Cube in LabyrinthUral Championship 1998565713

1611DecimationUral Championship 2008429715

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional205715

1629TripUSU Championship 2008399717

1034Queens in Peaceful PositionsUral Championship 19991656720

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012202722

1830Help in the RNOSUral Championship 2011269724

1169PairsRomanian Online Contest December 2001532725

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest516725

1780Gray CodeUral SU Championship 2010294727

1037Memory ManagementUSU Championship 20001616732

1405Goat in the Garden 5Autumn School Contest 2005560734

1484Film RatingUSU Championship 2006499736

1825Ifrit Bomber 2USU Personal Contest 2011270736

1159FenceNEERC 2001 Northern Subregional521740

1775Space BowlingUral SU Championship 2010286747

1016Cube on the WalkUSU Local Contest. 19991594751

2092BoleroUral FU Personal Contest 201447751

1875Angry BirdsUral Regional School Programming Contest 2011237753

1614National Project “Trams”Ural Championship 2008406755

1235Cricket FieldNEERC 2002520756

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest542758

1593Square Country. Version 2359762

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional276766

1986Paul’s SaladsUral FU Championship 2013150767

1974Similar TunesUral Championship 2013158769

1424MinibusTimus Top Coders: First Challenge512773

2052Physical EducationUral Championship 201589775

1392Dreaming of Stars527779

1646Godzilla Strikes Back!Autumn School Contest 2008363782

1512ZiniumTimus Top Coders: Third Challenge458783

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest417784

1647Divide an Island!Autumn School Contest 2008362784

1716Alternative SolutionNEERC 2009 Eastern Subregional314791

1042Central HeatingUSU Championship 20001489794

1988Planet Ocean LandingUral FU Championship 2013144796

1323ClassmatesUral Championship 2004. Round 2504798

1105Observers ColoringTetrahedron Team Online Contest May 2001475801

1587Flying PigNEERC 2007 Eastern Subregional402803

1996Cipher Message 3NEERC 2013 Eastern Subregional142803

1689Fisherman and BarbellUSU Personal Contest 2009337804

1030TitanicUral Championship 19991481805

1268Little ChuUSU Championship 2003495806

1738Computer SecurityUSU Championship 2009305807

1276TrainNEERC 2003 Central Subregional493810

1456Jedi Riddle 2Timus Top Coders: Second Challenge477810

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest451816

1379Cups TransportationUral Championship 2005. Round 1502817

1547Password SearchUral Championship 2007419820

1269Obscene Words FilterUSU Championship 2003485822

1927Herbs and MagicUral Regional School Programming Contest 2012176823

1720Summit Online JudgeNEERC 2009 Eastern Subregional300827

1147Shaping RegionsDSAP Vietnam Online Contest November 2001463829

1936RoshamboUral FU Championship 2012173830

2017Best of a bad lotNEERC 2014 Eastern Subregional102832

1705Gangster HaresUral Championship 2009320834

1165SubnumberNEERC 2001 Northern Subregional460836

1436BillboardUSU Personal Contest 2006468840

2089Experienced coachUral Championship 201644842

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest239845

2080WalletUral Championship 201643858

1277Cops and ThievesNEERC 2003 Central Subregional464859

1154Mages ContestUral Championship 2001. Round 2446861

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest433861

1342EnterpriseUSU Championship 2004471864

1373Pictura ex MachinaUral Championship 2005. Round 1474864

1715Another Ball KillerNEERC 2009 Eastern Subregional286866

1824Ifrit BomberUSU Personal Contest 2011226873

1006Square FramesUSU Championship 19971372875

1905Travel in TimeUral Championship 2012166877

1498Stroke at Full SpeedAutumn School Contest 2006415879

1970皇后像廣場Ural FU Personal Contest 2013141879

1578Mammoth HuntAutumn School Contest 2007366884

1608Lucky Tickets 2008Ural Championship 2008344887

1630TalismanUSU Championship 2008319891

2093All Roads Lead to SnowdriftUral FU Personal Contest 201438891

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest390897

1324Extra SpacesUral Championship 2004. Round 2447898

1245PicturesUSU Personal Contest 2003437900

1237Evacuation PlanNEERC 2002435901

1233Amusing NumbersNEERC 2002434902

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest262904

1175Strange SequenceUSU Personal Contest 2002423911

1580Dean's DebtsAutumn School Contest 2007354913

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest259914

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest293915

1921Chaos and OrderUral Regional School Programming Contest 2012157917

1836Babel FishUral Championship 2011210919

1285Thread in a HyperspaceUSU Personal Contest 2004433924

1761Binary PalindromeUSU Personal Contest 2010251924

1364LaraKillerUral Championship 2005. Round 2438930

1863Peaceful AtomUral FU Championship 2011190934

1575Yekaterinburg Subway 2Autumn School Contest 2007345936

1827Indigenous WarsUSU Personal Contest 2011210936

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest309937

1422FirefliesTimus Top Coders: First Challenge419940

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Contest86941

1948The Robot on the LineUral FU Personal Contest 2012146943

1883Ent's BirthdayUral Regional School Programming Contest 2011186949

1979Resources DistributionUral Championship 2013126950

1976Game OptimizationUral Championship 2013125957

1278“… Connecting People”NEERC 2003 Central Subregional415958

1339BabiesUSU Championship 2004423960

1730ManBearPigUral Regional School Programming Contest 2009256961

1398Bishop and Pawn369962

1937Davy Jones’s OrganUral FU Championship 2012148962

1435Financial ErrorUSU Personal Contest 2006404970

1887Frequent Flyer CardNEERC 2011 Eastern Subregional181971

1040Airline CompanyUSU Championship 20001213973

1784RoundersUral SU Championship 2010217974

1949The Best Picture in the GalaxyUral FU Personal Contest 2012141974

1591Abstract ThinkingNEERC 2007 Eastern Subregional327981

1857Alice and BandersnatchPetrozavodsk Summer 2011. USU Contest182982

1130Nikifor's WalkUSU Championship 2001386989

1418Military StoryUSU Championship 2005411989

1451Beerhouse TaleTimus Top Coders: Second Challenge389989

1965Pear TreesUral FU Personal Contest 2013124990

1983Nectar GatheringUral FU Championship 2013113997

1331VladislavaAutumn School Contest 2004404999

1569Networking the “Iset”USU Championship 20073231000

1907Coffee and BunsUral Championship 20121441002

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest3211011

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3621025

1768Circular StringsUral Championship 20102221027

1539Intelligence DataUSU Personal Contest 20073371030

1075Thread in a SpaceUSU Personal Contest 200110321038

1311Stable ConstructionUral Championship 2004. Round 13851039

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest2631040

1518Jedi Riddle 3Timus Top Coders: Third Challenge3411044

1570Eating HighUSU Championship 20073091044

1791Uncle Styopa and BusesUral Regional School Programming Contest 20102011045

1151RadiobeaconsUral Championship 2001. Round 23651047

1173Lazy SnailRomanian Online Contest December 20013651048

1879GOV-internship 2Ural Regional School Programming Contest 20111651063

1862Very Wealthy MoleUral FU Championship 20111651067

1722Observation DeckUral Regional School Programming Contest 20092271078

2055Urban GeographyUral Championship 2015611081

1317HailUral Championship 2004. Round 23671088

1790Searching for the TruthUral Regional School Programming Contest 20101921091

1687Numismatics for FunUSU Personal Contest 20092441098

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2141098

1341DeviceUSU Championship 20043681099

1447Portkey NetworkUral Championship 20063511102

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2411105

1434Buses in VasyukiUSU Personal Contest 20063511112

1540Battle for the RingUSU Personal Contest 20073071128

1627JoinPetrozavodsk Winter 2008. ITMO Contest2551128

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. USU Contest1571129

1444ElephpotamusUral Championship 20063411134

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1561140

2007Mutants versus MachinesUral Regional School Programming Contest 2013961140

1968Glass PyramidUral FU Personal Contest 20131051154

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1231156

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3151157

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2371158

1511Fiscal OperationsTimus Top Coders: Third Challenge3061159

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3491165

1985Prime SquareUral FU Championship 2013951168

1357Teakettle 1.0 for DummiesSpring School Contest 20053441175

1458War GamesTimus Top Coders: Second Challenge3251178

1408Polynomial MultiplicationAutumn School Contest 20053441181

1544Classmates 3Ural Championship 20072881181

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest1981182

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1681182

1595Perfect Sequence2161191

1736Chinese HockeyUSU Championship 20092011204

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Contest651204

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1641209

1533Fat HobbitsUSU Personal Contest 20072851212

1359ConstructionSpring School Contest 20053331213

1307ArchiverUral Championship 2004. Round 13281214

1453QueenTimus Top Coders: Second Challenge3151214

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest3021222

1766Humpty DumptyUral Championship 20101851222

1807Cartridges for MaximNEERC 2010 Eastern Subregional1691224

1310ACM DiagnosticsUral Championship 2004. Round 13241228

1035Cross-stitchUral Championship 19999561240

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2561243

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2561258

1099Work Scheduling7151259

1487Chinese FootballUSU Championship 20062861265

1546Japanese SortingUral Championship 20072681266

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup951269

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1911275

1538Towers of GuardUSU Personal Contest 20072701277

1669Universal WordPetrozavodsk Winter 2008. USU Contest2141277

1321Floor IndicatorUral Championship 2004. Round 23111278

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest2831284

1686Photovoltaic SpaceshipUSU Personal Contest 20092071285

1393Average Common Prefix3111287

1657Cube SnakeNEERC 2008 Eastern Subregional2141299

1947MeanderUral FU Personal Contest 20121031302

1177Like ComparisonsUSU Personal Contest 20022921306

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2641310

1946Chinese Hockey 3Ural FU Personal Contest 20121021313

1171Lost in SpaceRomanian Online Contest December 20012881318

1360Philosophical DisputeUral Championship 2005. Round 23061318

1328FireballAutumn School Contest 20043021326

1097Square Country 2USU Local Contest. March 20017501327

1050Preparing an ArticleUSU Local Contest. March 20008751328

1065FrontierNEERC 20008241334

1281River BasinNEERC 2003 Central Subregional2921349

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup881360

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2521370

1499KerchiefsAutumn School Contest 20062621374

1240Heroes of Might and MagicNEERC 20022811376

1318LogarithmUral Championship 2004. Round 22871382

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2061384

1762Search for a Hiding-PlaceUSU Personal Contest 20101621402

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1461404

1419Maps of the Island WorldsUSU Championship 20052841416

2094Thousand ImpsUral FU Personal Contest 2014201426

1265MirrorUSU Championship 20032751428

1299PsyloniansSpring School Contest 20042771428

1449Credit Operations 2Timus Top Coders: Second Challenge2661430

1441From the History of Gringotts BankUral Championship 20062681432

1345HTMLUSU Championship 20042801433

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2401436

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional971437

1266Kirchhoff's LawUSU Championship 20032721443

1950Martian FarmlandsUral FU Personal Contest 2012911456

1347BlogSpring School Contest 20052751460

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1581464

1170DesertRomanian Online Contest December 20012581466

1412Autumn TideUSU Championship 20052731471

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Contest501505

1886Trip 2NEERC 2011 Eastern Subregional1131508

1770The Party of Ural ChampionsUral Championship 20101481509

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2381517

1043Cover an ArcUSU Championship 20007721521

1802Cube PuzzleNEERC 2010 Eastern Subregional1341521

1251Cemetery ManagerUSU Local Contest. March 20032541525

2097Snowboarding on SpilnayaUral FU Personal Contest 2014181528

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup771532

20503D-modelingUral Championship 2015401534

1851GOV-internshipPetrozavodsk Summer 2011. USU Contest1121546

2059Not common palindromesPalindromic Contest 361549

1241Inlay CuttersNEERC 20022461567

1488ACM PokerUSU Championship 20062281574

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2551578

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1231582

1337BureaucracyAutumn School Contest 20042511585

1568Train Car SortingUSU Championship 20072001586

1908Brute-force SearchUral Championship 2012871591

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1061599

1896War Games 2.1201614

1485Football and LieUSU Championship 20062211622

1764TranssibUral Championship 20101371622

1565The Duel for ThreeUSU Championship 20071951625

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1631641

1782Jack's New WordUral SU Championship 20101241650

1707Hypnotoad's SecretUral Championship 20091551668

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1361685

1257HyphenationAutumn School Contest 20032311688

1583CheeseNEERC 2007 Eastern Subregional1861688

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest1011704

1734Endgame DatabaseUSU Championship 20091391705

1062TriathlonNEERC 20006401710

1670AsteriskPetrozavodsk Summer 2008. USU Contest1561710

1338AutomobilesUSU Championship 20042311725

2075Take care of your eyebrows!Qualification of eastern subregional contest 2015211730

1378Artificial IntelligenceUral Championship 2005. Round 12311735

1420Integer-Valued Complex DivisionUSU Championship 20052301735

1841CablewaysPetrozavodsk Summer 2010. USU Contest991735

1516NostalgiaTimus Top Coders: Third Challenge2001745

1508Japanese PuzzleNEERC 2006 Eastern Subregional2031747

1557Network AttackPetrozavodsk Summer 2007. NSU Contest1811752

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2071757

1831Tsyfirkin's LessonUral Championship 20111051757

1046Geometrical DreamsUSU Local Contest. March 20006581760

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012121767

1610CactusesUral Championship 20081671773

1514National ParkTimus Top Coders: Third Challenge1941796

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1461819

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1871822

1702CrossroadUral Championship 20091411823

1492Vasya's Dad 2Autumn School Contest 20061941832

1304ParallelepipedUral Championship 19982131838

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. USU Contest921849

1425Queen 2Timus Top Coders: First Challenge2071858

1093DartsUSU Local Contest. March 20015321861

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1031862

1615Tram SolitaireUral Championship 20081581868

1757Gold BarsUSU Personal Contest 20101191870

1417Space Poker 2USU Championship 20052121876

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1391905

1163ChapaevNEERC 2001 Northern Subregional1961907

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1191907

1503PolynomialNEERC 2006 Eastern Subregional1851908

1532Lost in TranslationUSU Personal Contest 20071771912

1455Freedom of SpeechTimus Top Coders: Second Challenge1931944

2096All InclusiveUral FU Personal Contest 2014121945

1148Building TowersDSAP Vietnam Online Contest November 20011901962

1634Spider MiteUSU Championship 20081391968

1216Two Pawns and One KingUSU Championship 20021931969

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1341971

1781Clean CodeUral SU Championship 20101021974

2085Magic ProgrammerUral Championship 2016131977

1969Hong Kong TramUral FU Personal Contest 2013571980

1839The MentaculusUral Championship 2011921981

2022Riding a ToadNEERC 2014 Eastern Subregional371982

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1341986

1187Statistical TroubleNEERC 20011881993

1397Points Game1782001

1396Maximum. Version 21862002

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest1982011

1315MDPAR and MIIARUral Championship 2004. Round 11932021

2090Crossroads of DestinyUral FU Personal Contest 2014112038

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1862040

1063Domino PuzzleNEERC 20005322050

1977Energy WallUral Championship 2013532050

1703Robotic ArmUral Championship 20091242054

1267Yekaterinburg SubwayUSU Championship 20031882056

1041NikiforUSU Championship 20005682058

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1292058

1867NanotechnologiesUral FU Championship 2011802074

1288AstrolocationUSU Personal Contest 20041872078

1541ChaseUSU Personal Contest 20071622078

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional642078

1188LibraryNEERC 20011792088

1074Very Short ProblemUSU Personal Contest 20015032108

1092TransversalUSU Local Contest. March 20014622137

1232Asteroid LandingNEERC 2002 Central Subregional1772138

1549Another Japanese PuzzleUral Championship 20071542146

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest872169

1504Good MannersNEERC 2006 Eastern Subregional1612176

1543Dance RevolutionUral Championship 20071512186

2053BiologyUral Championship 2015252192

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest312203

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21792204

1850Space TourismPetrozavodsk Summer 2010. USU Contest752225

1945Many-armed BrothersUral FU Personal Contest 2012562229

1833Hopes of RowingUral Championship 2011792271

1270UnicubeUSU Championship 20031682287

1284Space PokerUSU Personal Contest 20041692287

1652Banking CrisisNEERC 2008 Eastern Subregional1172292

1256Cemetery GuardUSU Local Contest. March 20031652300

1481Winning ChancesUSU Championship 20061512327

1655Somali PiratesNEERC 2008 Eastern Subregional1152329

1368Goat in the Garden 3Ural Championship 2005. Round 21682340

1895Steaks on BoardNEERC 2011 Eastern Subregional692347

1882Old NokiaUral Regional School Programming Contest 2011692355

1758Bald Spot Revisited 2USU Personal Contest 2010912388

1835Swamp DoctorUral Championship 2011742406

1735Theft of the CenturyUSU Championship 2009952420

1829Routing TablesUSU Personal Contest 2011752423

1717Eligibility RulesNEERC 2009 Eastern Subregional952441

1739FaryuksUSU Championship 2009932467

1978E-LiteUral Championship 2013422483

1599Winding Number162510

1275Knights of the Round TableNEERC 2003 Central Subregional1522514

1972Game TestingUral Championship 2013412532

2051PhysicsUral Championship 2015202557

1520Empire Strikes BackTimus Top Coders: Third Challenge1332562

2006Kirill the GardenerUral Regional School Programming Contest 2013372572

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1202574

1300TaxesUral Championship 19981472611

1308Dean's PyramidUral Championship 2004. Round 11472613

1454Rectangles 2Timus Top Coders: Second Challenge1412614

1865The Island of MärketUral FU Championship 2011612630

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional872642

1704DemodulationUral Championship 2009942647

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup402666

2083The Guardian of TraditionsUral Championship 201672676

2084Technical debtUral Championship 201672676

1312TrayUral Championship 2004. Round 11432682

1239Ghost BustersNEERC 20021392688

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional472698

1859Last Season of Team.GOVPetrozavodsk Summer 2011. USU Contest592734

1609Tram TileUral Championship 20081042754

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest662769

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest902774

1798Fire Circle. Version 2152780

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1252786

1566Triangular PostcardsUSU Championship 20071092799

1694Killer WordsPetrozavodsk Winter 2009. USU Contest892802

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest572823

2087TrainsUral Championship 201662842

2058100500 palidnromesPalindromic Contest 152849

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest902860

1637Triangle Game 2USU Championship 2008922875

1505Oil TransferNEERC 2006 Eastern Subregional1192885

1464LightPetrozavodsk Winter 2006. USU Contest1212910

1395Pascal vs. C++. Version 21242940

1482Triangle GameUSU Championship 20061172949

1856War and PeacePetrozavodsk Summer 2011. USU Contest532994

1681Brother Bear's GardenUSU Personal Contest 2009823031

2086Find DenisUral Championship 201653032

2079Memory leaksUral Championship 201653033

141140 Islands KnightsUSU Championship 20051263062

1367Top SecretUral Championship 2005. Round 21263063

1058ChocolateNEERC 2000 Central Subregional3703081

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup333100

1957MundialPetrozavodsk Winter 2013. Kontur Cup333100

1438Time Limit ExceededUSU Personal Contest 20061193113

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest693113

1858Magic CubePetrozavodsk Summer 2011. USU Contest503143

1975Model of the EarthUral Championship 2013313150

1429BiscuitsTimus Top Coders: First Challenge1183151

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest783152

2088Nostalgic EveningUral Championship 201643155

1442Floo PowderUral Championship 20061163159

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest843181

1909Space ReconUral Championship 2012383216

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Contest183226

2057Non-palidromic cuttingPalindromic Contest 123238

2061OEIS A216264Palindromic Contest 123238

1597Chernobyl’ Eagle on a Roof. Version 2203245

1622EndspielPetrozavodsk Winter 2008. ITMO Contest823250

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest543288

1834Tennis RacketUral Championship 2011513313

2049ChemistryUral Championship 2015133336

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional363343

1166Funny Card GameNEERC 2001 Northern Subregional1113362

1938Caribbean TriangleUral FU Championship 2012353376

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest523394

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1133400

1466Magic SquarePetrozavodsk Winter 2006. USU Contest1023404

1509Domino RecognitionNEERC 2006 Eastern Subregional953544

1616Square Country 4Ural Championship 2008783567

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest433569

2077ReductionsQualification of eastern subregional contest 201553575

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Contest153613

1733Forgotten TechnologyUSU Championship 2009603630

1199Mouse903645

1598DSA Attack163664

1632LasersUSU Championship 2008703666

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest813677

1765Error 404Ural Championship 2010543724

2082PokerUral Championship 201623750

1847ZamkadyePetrozavodsk Summer 2010. USU Contest403783

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup253808

1999The secret moduleNEERC 2013 Eastern Subregional213937

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest963945

1778Chinese Hockey 2Ural SU Championship 2010463947

1973Location GeneratorUral Championship 2013224035

2076VasianaQualification of eastern subregional contest 201534125

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest764174

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest804179

2016Magic and ScienceNEERC 2014 Eastern Subregional124234

2054AstronomyUral Championship 201584261

1661DodecahedronPetrozavodsk Winter 2008. USU Contest574269

1967Programmer CasinoUral FU Personal Contest 2013214280

1460WiresPetrozavodsk Winter 2006. USU Contest774382

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest554400

1271Sailing DirectionsUSU Championship 2003824424

2042NikitaPetrozavodsk Summer 2014. Ural FU Contest104516

1344Gigantic TurnipUSU Championship 2004824518

1340CucarachaUSU Championship 2004814567

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest724587

1594Aztec Treasure474729

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Contest94753

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest474866

1763Expert FleaUral Championship 2010384966

1771A Deputy's MorningUral Championship 2010384966

1799Sasha and swag strings35003

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest655015

1797Summit Online Judge. Version 2215034

1801The Revolution CupNEERC 2010 Eastern Subregional335095

1426RectanglesTimus Top Coders: First Challenge695105

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest715163

1365Testing CalculatorUral Championship 2005. Round 2705207

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest475246

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest685362

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest455437

1372Death StarUral Championship 2005. Round 1655575

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest235715

1848Fly HuntPetrozavodsk Summer 2010. USU Contest235732

1906The Lost CivilizationUral Championship 2012165937

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest535970

1842Local RootsPetrozavodsk Summer 2010. USU Contest216102

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest366218

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional366328

1668Death Star 2Petrozavodsk Winter 2008. USU Contest356356

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest226576

1674Drunk KingPetrozavodsk Summer 2008. USU Contest336601

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest356645

1363HalftonesUral Championship 2005. Round 2526718

1653Death ConveyorNEERC 2008 Eastern Subregional317099

1596Knight Mare147232

1536Delights of Pipe-weedUSU Personal Contest 2007387448

1432Twofold LuckUSU Personal Contest 2006398195

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest268306

1840Victim of AdvertisingUral Championship 2011138786

1376Dean's Pyramid 2Ural Championship 2005. Round 1378896

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest219156

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest269295

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup49518

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1610669

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest2910724

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1610916

1399Economical Director2311042

1374MisereUral Championship 2005. Round 12711301

1415Mobile LifeUSU Championship 20052611562

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest1712393

1708Sum of Digits 2Ural Championship 20091212508

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2213069

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest1713295

1369Cockroach RaceUral Championship 2005. Round 21516661

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1417426

1548Sakura and StatisticsUral Championship 20071017595

1589SokobanNEERC 2007 Eastern Subregional423624

1394Ships. Version 2527883