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Problem set


1000A+B Problem6673418

1001Reverse Root1874919

1785Lost in LocalizationUral Regional School Programming Contest 20101047919

1293EniyaSpring School Contest 20041766622

1877Bicycle CodesUral Regional School Programming Contest 2011715523

1409Two GangstersAutumn School Contest 20051690924

1820Ural SteaksUSU Personal Contest 2011669728

1787Turn for MEGAUral Regional School Programming Contest 2010661830

2012About Grisha N.NEERC 2014 Eastern Subregional230230

1264WorkdaysAutumn School Contest 20031251331

2001Mathematicians and BerriesUral Regional School Programming Contest 2013312231

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011513232

1197Lonesome KnightSpring School Contest 20021150033

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional380735

1639Chocolate 2Autumn School Contest 2008735537

1924Four ImpsUral Regional School Programming Contest 2012346438

1313Some Words about SportUral Championship 2004. Round 1929742

12091, 10, 100, 1000...Autumn School Contest 2002872644


1319HotelUral Championship 2004. Round 2868545

1567SMS-spamUSU Championship 2007702945

1581TeamworkAutumn School Contest 2007682746

1225FlagsNEERC 2002 Central Subregional801148

2023Donald is a postmanNEERC 2014 Eastern Subregional144048

1263ElectionsAutumn School Contest 2003788950

1585PenguinsNEERC 2007 Eastern Subregional625450

1876Centipede's MorningUral Regional School Programming Contest 2011318352

1991The battle near the swampNEERC 2013 Eastern Subregional190852

1100Final StandingsTetrahedron Team Online Contest May 2001698053

1881Long problem statementUral Regional School Programming Contest 2011310953

1327FusesAutumn School Contest 2004729755

1893A380NEERC 2011 Eastern Subregional297655

1243Divorce of the Seven DwarfsUSU Personal Contest 2003673257

1110PowerBulgarian Online Contest September 2001650158

1493One Step from HappinessAutumn School Contest 2006620858

1349FarmSpring School Contest 2005679259

1607TaxiUSU Personal Contest 2008497560

1925British Scientists Save the WorldUral Regional School Programming Contest 2012214461

1496SpammerAutumn School Contest 2006577962

1545HieroglyphsUral Championship 2007543262

1636Penalty TimeUSU Championship 2008436163

1196History ExamSpring School Contest 2002580965

1837Isenbaev's NumberUral Championship 2011277765

1149Sinus Dances569766

2002Test TaskUral Regional School Programming Contest 2013145367

1617Flat SpotsUral Championship 2008435368

1654Cipher MessageNEERC 2008 Eastern Subregional400368

1723Sandro's BookUral Regional School Programming Contest 2009345468

1563BayanUSU Championship 2007453570

2005Taxi for ProgrammersUral Regional School Programming Contest 2013139470

1131CopyingUSU Championship 2001528071

1025Democracy in DangerAutumn School Contest 20001597672

1457Heating MainTimus Top Coders: Second Challenge525672

1224SpiralNEERC 2002 Central Subregional522673

2035Another Dress RehearsalUral Regional School Programming Contest 201493773

1792Hamming CodeUral Regional School Programming Contest 2010268874

1935Tears of DrownedUral FU Championship 2012171775

1712Cipher GrilleNEERC 2009 Eastern Subregional310676

1083Factorials!!!Spring School Contest 20011321877

2011Long StatementUral Regional School Programming Contest 2013126477

1502Domino DotsNEERC 2006 Eastern Subregional437881

1194HandshakesSpring School Contest 2002455483

2031Overturned NumbersUral Regional School Programming Contest 201481783

1139City BlocksNEERC 2001 Central Subregional449384

1638BookwormUSU Championship 2008326784

1106Two TeamsTetrahedron Team Online Contest May 2001437685

1290SabotageSpring School Contest 2004460785

1120Sum of Sequential NumbersAutumn School Contest 2001436586

1404Easy to Hack!Autumn School Contest 2005466186

1902Neo-VeniceUral Championship 2012150887

1180Stone GameUSU Personal Contest 2002421190

1796Amusement ParkUral Regional School Programming Contest 2010216192

2025Line FightingUral Regional School Programming Contest 201473792

1119MetroAutumn School Contest 2001401993

1601AntiCAPSUSU Personal Contest 2008319993

1161StripiesNEERC 2001 Northern Subregional399494

1510OrderNEERC 2006 Eastern Subregional378194

16421D MazeAutumn School Contest 2008286495

1005Stone PileUSU Championship 19971209796

1297PalindromeSpring School Contest 2004409996

1786Sandro's BiographyUral Regional School Programming Contest 2010208796

1009K-based NumbersUSU Championship 19971188397

1731DillUral Regional School Programming Contest 2009244097

2033DevicesUral Regional School Programming Contest 201469997

1644A Whole Lot of WalnutsAutumn School Contest 2008279098

2010Sasha the Young GrandmasterUral Regional School Programming Contest 201399198

1146Maximum SumDSAP Vietnam Online Contest November 2001378699

1446Sorting HatUral Championship 2006387099

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 20013705100

1370MagicianUral Championship 2005. Round 23947102

1214Strange ProcedureAutumn School Contest 20023736103

1228ArrayNEERC 2002 Central Subregional3676104

1873GOV ChroniclesUral Regional School Programming Contest 20111587104

1136ParliamentNEERC 2001 Central Subregional3574105

1777AnindilyakwaUral SU Championship 20101904105

1020RopeAutumn School Contest 200010693108

1118Nontrivial NumbersAutumn School Contest 20013469108

1014Product of DigitsUSU Local Contest. 199910587109

1203Scientific ConferenceUSU Local Contest. March 20023482109

1330IntervalsAutumn School Contest 20043599110

1573AlchemyAutumn School Contest 20072867110

1296HyperjumpSpring School Contest 20043534111

1082Gaby IvanushkaSpring School Contest 20018992113

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional610113

1192Ball in a DreamSpring School Contest 20023291115

1079MaximumWinter Mathematical Festival Varna 20018877116

1582BookmakersNEERC 2007 Eastern Subregional2695116

1044Lucky Tickets. Easy!USU Championship 20009734117

2000Grand Theft Array VUral Regional School Programming Contest 2013835117

1226esreveR redrONEERC 2002 Central Subregional3250118

1126Magnetic StormsUSU Championship 20013154119

1711Code NamesNEERC 2009 Eastern Subregional1991119

1219Symbolic SequenceUSU Championship 20023171121

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023105122

1086CryptographySpring School Contest 20018152125

1123SalaryAutumn School Contest 20012990125

1868Prediction ContestUral FU Championship 20111313125

1353Milliard Vasya's FunctionSpring School Contest 20053158127

1683FridgeUSU Personal Contest 20092011129

1688Team.GOV!USU Personal Contest 20092013129

1283DwarfUSU Personal Contest 20042999131

1336Problem of Ben BetsalelAutumn School Contest 20043035131

1725Sold Out!Ural Regional School Programming Contest 20091799131

1260Nudnik PhotographerAutumn School Contest 20032936133

1931Excellent TeamUral FU Championship 2012967133

1964Chinese DialectsUral FU Personal Contest 2013814134

1022Genealogical TreeAutumn School Contest 20008512135

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101461136

1982Electrification PlanOpen Ural FU Championship 2013725136

1352Mersenne PrimesSpring School Contest 20052911137

1984Dummy GuyOpen Ural FU Championship 2013722137

2018The Debut AlbumNEERC 2014 Eastern Subregional500137

1021Sacrament of the SumAutumn School Contest 20008324139

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional705139

1740Deer is Better!USU Championship 20091663141

1222Chernobyl’ EaglesUSU Championship 20022692142

1612Tram ForumUral Championship 20082070142

1026Questions and AnswersAutumn School Contest 20008039143

1402CocktailsAutumn School Contest 20052818143

1142RelationsDSAP Vietnam Online Contest November 20012601144

1821BiathlonUSU Personal Contest 20111284144

1864Get-Together at Den'sUral FU Championship 20111138145

1576Telephone TariffsAutumn School Contest 20072143146

1178Akbardin’s RoadsUSU Personal Contest 20022528149

1084Goat in the GardenSpring School Contest 20016776150

2056ScholarshipUral Championship 2015341151

1306Sequence MedianUral Championship 19982535155

1572Yekaterinozavodsk Great WellAutumn School Contest 20072020155

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional844155

1756One and a Half DiggersUSU Personal Contest 20101415156

1210Kind SpiritsAutumn School Contest 20022430157

1878Rubinchik's CubeUral Regional School Programming Contest 20111043157

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional432158

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional821159

1709Penguin-AviaUral Championship 20091585161

1073Square CountryUSU Personal Contest 20016380162

1944Record of the Attack at the OrbitUral FU Personal Contest 2012758163

1167Bicolored HorsesRomanian Online Contest December 20012290164

1295Crazy NotionsSpring School Contest 20042392164

1135RecruitsNEERC 2001 Central Subregional2278165

1157Young TilerUral Championship 2001. Round 22277165

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101203165

1017StaircasesUSU Local Contest. 19996959166

1506Columns of NumbersNEERC 2006 Eastern Subregional2126167

1874Football GoalUral Regional School Programming Contest 2011979167

1280Topological SortingNEERC 2003 Central Subregional2298170

1213Cockroaches!Autumn School Contest 20022235171

1012K-based Numbers. Version 26717172

1769Old Ural LegendUral Championship 20101266172

1800Murphy's LawNEERC 2010 Eastern Subregional1149172

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091361173

1613For Fans of StatisticsUral Championship 20081698174

1272Non-Yekaterinburg SubwayUSU Championship 20032217176

1869New Year CruiseUral FU Championship 2011935176

1354Palindrome. Again PalindromeSpring School Contest 20052261177

1640Circle of WinterAutumn School Contest 20081540177

1685OrthographyUSU Personal Contest 20091459177

1789Searching for the DodecahedronUral Regional School Programming Contest 20101124177

1930Ivan's CarUral Regional School Programming Contest 2012731178

1193Queue at the ExamSpring School Contest 20022107179

1413Mars JumperUSU Championship 20052236179

1335White ThesisAutumn School Contest 20042189181

1048Superlong SumsUSU Local Contest. March 20006178182

1586Threeprime NumbersNEERC 2007 Eastern Subregional1717182

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional374182

1846GCD 2010Petrozavodsk Summer 2010. USU Contest912183

1134CardsNEERC 2001 Central Subregional2041184

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1469185

1102Strange DialogTetrahedron Team Online Contest May 20011990186

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1418186

1208Legendary Teams ContestUSU Local Contest. March 20022017187

1164FillwordNEERC 2001 Northern Subregional1984189

1114BoxesBulgarian Online Contest September 20011942192

1645Ski RaceAutumn School Contest 20081417192

1207Median on the PlaneUSU Local Contest. March 20021943194

1133Fibonacci SequenceNEERC 2001 Central Subregional1916195

1885Passenger ComfortNEERC 2011 Eastern Subregional831196

1138Integer PercentageNEERC 2001 Central Subregional1900197

2024Adventure TimeUral Regional School Programming Contest 2014339197

1680The First NonqualifyingUSU Personal Contest 20091302198

1023ButtonsAutumn School Contest 20005787199

1112CoverBulgarian Online Contest September 20011846202

1423String TaleTimus Top Coders: First Challenge1905203

1987Nested SegmentsOpen Ural FU Championship 2013474207

1152False MirrorsUral Championship 2001. Round 21780211

1002Phone NumbersCentral European Olympiad in Informatics 19995469212

1249Ancient NecropolisUSU Local Contest. March 20031820212

1348Goat in the Garden 2Spring School Contest 20051882212

1200Horns and HoofsUSU Local Contest. March 20021753215

1515CashmasterTimus Top Coders: Third Challenge1593218

1737Mnemonics and Palindromes 3USU Championship 20091063219

1052Rabbit HuntUSU Local Contest. March 20005108220

1491Unreal StoryAutumn School Contest 20061612221

1922Superhero TeamUral Regional School Programming Contest 2012584221

1011ConductorsUSU Championship 19975212222

1889Airport AnnouncementsNEERC 2011 Eastern Subregional724224

1490Fire CircleAutumn School Contest 20061577225

1125HopscotchUSU Championship 20011646227

1033LabyrinthUral Championship 19995045228

1998The old PadawanNEERC 2013 Eastern Subregional425229

1183Brackets SequenceNEERC 20011635230

2003Simple MagicUral Regional School Programming Contest 2013418230

1494MonobilliardsAutumn School Contest 20061536231

1795Husband in a ShopUral Regional School Programming Contest 2010859231

1024PermutationsAutumn School Contest 20004949233

1333Genie Bomber 2Autumn School Contest 20041700233

1049Brave BalloonistsUSU Local Contest. March 20004806234

1635Mnemonics and PalindromesUSU Championship 20081150237

1150Page NumbersUral Championship 2001. Round 21570239

1242WerewolfUSU Personal Contest 20031605240

1826MinefieldUSU Personal Contest 2011761241

1122GameAutumn School Contest 20011542242

1191Catch the thief!Spring School Contest 20021557242

1981Parallel and PerpendicularOpen Ural FU Championship 2013404242

1355Bald Spot RevisitedSpring School Contest 20051642243

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1647243

1205By the Underground or by Foot?USU Local Contest. March 20021547244

2021Scarily interesting!NEERC 2014 Eastern Subregional276245

1204IdempotentsUSU Local Contest. March 20021533246

1108HeritageBulgarian Online Contest September 20011505248

1247Check a SequenceUSU Personal Contest 20031546249

1718RejudgeNEERC 2009 Eastern Subregional943249

1113JeepBulgarian Online Contest September 20011485251

1603EruditeUSU Personal Contest 20081175253

1779The Great TeamUral SU Championship 2010786253

1010Discrete FunctionUSTU PhysTech Cup 20004553254

1433DiamondsUSU Personal Contest 20061502255

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20013997256

1298KnightSpring School Contest 20041525257

1303Minimal CoverageUral Championship 19981528257

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012500258

1109ConferenceBulgarian Online Contest September 20011438259

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1307260

1080Map ColoringWinter Mathematical Festival Varna 20013919261

1823Ideal GasUSU Personal Contest 2011700262

1195Ouths and CrossesSpring School Contest 20021434263

1726VisitsUral Regional School Programming Contest 2009877267

1087The Time to Take StonesSpring School Contest 20013786268

1933Guns for Battle!Ural FU Championship 2012476268

1028StarsUral Championship 19994263269

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031424270

1047Simple CalculationsUSU Local Contest. March 20004133272

1220StacksUSU Championship 20021400273

1211Collective GuaranteeAutumn School Contest 20021382276

1590Bacon’s CipherNEERC 2007 Eastern Subregional1126276

1117HierarchyAutumn School Contest 20011343278

1179Numbers in TextUSU Personal Contest 20021351278

1989SubpalindromesOpen Ural FU Championship 2013348280

2034CaravansUral Regional School Programming Contest 2014236280

1658Sum of DigitsNEERC 2008 Eastern Subregional963281

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest790283

1537EntsUSU Personal Contest 20071189284

1684Jack's Last WordUSU Personal Contest 2009903285

1244GentlemenUSU Personal Contest 20031342286

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014230287

1032Find a MultipleUral Championship 19993477288

1053PinocchioNEERC 2000 Central Subregional3870290

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1232290

1741Communication FiendUSU Championship 2009800290

1018Binary Apple TreeUSU Local Contest. 19993931293

1497Cutting a SquareAutumn School Contest 20061210293

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional669293

1501Sense of BeautyNEERC 2006 Eastern Subregional1202294

1941Scary Martian WordUral FU Personal Contest 2012415295

1184Cable MasterNEERC 20011272296

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1197298

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest747299

1904The Lessons of the PastUral Championship 2012434299

1377Lara CroftUral Championship 2005. Round 11336300

1551Sumo TournamentUral Championship 20071109300

1753BookshelfUSU Personal Contest 2010721303

1793Tray 2Ural Regional School Programming Contest 2010645306

1036Lucky Tickets3738307

1215Exactness of Projectile HitAutumn School Contest 20021237308

2026Dean and ScheduleUral Regional School Programming Contest 2014213309

1116Piecewise Constant FunctionAutumn School Contest 20011200311

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional309312

1127Colored BricksUSU Championship 20011188314

1190Bar of ChocolateSpring School Contest 20021179319

1294Mars SatellitesSpring School Contest 20041229319

1008Image EncodingUSTU PhysTech Cup 20003615320

1121BranchesAutumn School Contest 20011164320

1153SupercomputerUral Championship 2001. Round 21166321

1934Black SpotUral FU Championship 2012391325

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest783327

1302Delta-waveUral Championship 19981189329

1029MinistryUral Championship 19993029331

1124MosaicUSU Championship 20011126331

1588JamaicaNEERC 2007 Eastern Subregional937331

1992CVSNEERC 2013 Eastern Subregional290332

1648YachtsAutumn School Contest 2008808335

1137Bus RoutesNEERC 2001 Central Subregional1111336

1227Rally ChampionshipNEERC 2002 Central Subregional1135336

1604Country of FoolsUSU Personal Contest 2008882336

1995Illegal spicesNEERC 2013 Eastern Subregional287336

1060Flip GameNEERC 20003157337

1320Graph DecompositionUral Championship 2004. Round 21152340

1185WallNEERC 20011101341

1201Which Day Is It?USU Local Contest. March 20021101342

1406Next NumberAutumn School Contest 20051159345

2046The First Day at SchoolUral Championship 2015144345

1901Space ElevatorsUral Championship 2012374346

1031Railway TicketsUral Championship 19993308347

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014188348

1223Chernobyl’ Eagle on a RoofUSU Championship 20021090349

1521War Games 2Timus Top Coders: Third Challenge990350

1140Swamp IncidentNEERC 2001 Central Subregional1060352

1828Approximation by a ProgressionUSU Personal Contest 2011516353

1090In the Army NowUSU Local Contest. March 20012727354

1262Pseudo-Roman NumberAutumn School Contest 20031089356

1483Table FootballUSU Championship 2006998356

1517Freedom of ChoiceTimus Top Coders: Third Challenge973356

1013K-based Numbers. Version 3195357

1160NetworkNEERC 2001 Northern Subregional1068357

1783Nuclear Arms RaceUral SU Championship 2010550359

1007Code WordsUSU Championship 19973208360

1261TipsAutumn School Contest 20031077360

1450Russian PipelinesTimus Top Coders: Second Challenge1044360

1923Scary PoliticsUral Regional School Programming Contest 2012355360

1854Negotiations with ParthiansPetrozavodsk Summer 2011. USU Contest455361

1963KiteUral FU Personal Contest 2013296361

1218Episode N-th: The Jedi TournamentUSU Championship 20021051362

1282Game TreeNEERC 2003 Central Subregional1063365

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional182365

1055CombinationsNEERC 2000 Central Subregional3062366

1292Mars Space StationsSpring School Contest 20041068366

1759Long-LiversUSU Personal Contest 2010594367

1574Mathematicians and bracketsAutumn School Contest 2007846368

1156Two RoundsUral Championship 2001. Round 21011369

1246Tethered DogUSU Personal Contest 20031034371

1346Intervals of MonotonicityUSU Championship 20041063373

1403CourierAutumn School Contest 20051071373

1431DiplomasUSU Personal Contest 20061027373

1631Drunk King 2USU Championship 2008719378

1078SegmentsWinter Mathematical Festival Varna 20012701379

1651Shortest SubchainNEERC 2008 Eastern Subregional705382

1039Anniversary PartyUSU Championship 20002968383

1229Strong BrickworkNEERC 2002 Central Subregional992384

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest879385

1259How to Become Star?Autumn School Contest 20031004386

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional417386

1003ParityCentral European Olympiad in Informatics 19992980388

1562GM-pineappleUSU Championship 2007804388

1774Barber of the Army of MagesUral SU Championship 2010508388

1860FiborialPetrozavodsk Summer 2011. USU Contest421390

1015Test the Difference!USU Local Contest. 19992931393

1489Points on a ParallelepipedAutumn School Contest 2006901393

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest564395

1176HyperchannelsUSU Personal Contest 2002947396

2030Awesome Backup SystemUral Regional School Programming Contest 2014164396

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest664397

1407One-two, One-twoAutumn School Contest 20051004398

1427SMSTimus Top Coders: First Challenge966398

1942Attack at the OrbitUral FU Personal Contest 2012305398

1115ShipsBulgarian Online Contest September 2001932399

1279WarehouseNEERC 2003 Central Subregional973399

2047MathsUral Championship 2015123400

1094E-screenUSU Local Contest. March 20012405401

1217Unlucky TicketsUSU Championship 2002942404

1356Something EasierSpring School Contest 2005984404

1289One Way TicketUSU Personal Contest 2004962406

1111SquaresBulgarian Online Contest September 2001912407

1495One-two, One-two 2Autumn School Contest 2006868407

1141RSA Attack913408

1732Ministry of TruthUSU Championship 2009563410

1038Spell CheckerUSU Championship 20002752413

1287Mars CanalsUSU Personal Contest 2004946413

1350CanteenSpring School Contest 2005961413

1571InterpretersUSU Championship 2007753414

1507Difficult DecisionNEERC 2006 Eastern Subregional844417

1107Warehouse ProblemTetrahedron Team Online Contest May 2001882418

1077Travelling Tours884420

1089Verification with a VocabularySpring School Contest 20012401422

1480CouponsUSU Championship 2006840422

1602ElevatorUSU Personal Contest 2008700422

1252Sorting the TombstonesUSU Local Contest. March 2003904424

1128Partition into GroupsUSU Championship 2001872427

1513Lemon TaleTimus Top Coders: Third Challenge810427

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional299428

1519Formula 1Timus Top Coders: Third Challenge806429

1700AwakeningUral Championship 2009588429

1202Rectangles TravelUSU Local Contest. March 2002872430

1181Cutting a Painted PolygonUSU Personal Contest 2002868431

1019Line PaintingUSU Local Contest. 19992661433

1291Gear-wheelsSpring School Contest 2004898435

1776Anniversary FireworkUral SU Championship 2010453435

1890Money out of Thin AirNEERC 2011 Eastern Subregional364440

1641DutiesAutumn School Contest 2008610442

1971Graphics SettingsUral Championship 2013232442

1221Malevich Strikes Back!USU Championship 2002858443

1416ConfidentialUSU Championship 2005896443

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014145444

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional436447

1258PoolAutumn School Contest 2003861450

1643Attack of the Dark FortressAutumn School Contest 2008598450

1051Simple Game on a GridUSU Local Contest. March 20002490451

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001822453

1728Curse on Team.GOVUral Regional School Programming Contest 2009509456

1129Door PaintingUSU Championship 2001812458

1410CrackUSU Championship 2005865459

1072RoutingUSU Personal Contest 20012225464

1189Pairs of IntegersNEERC 2001797470

1155TroubleduonsUral Championship 2001. Round 2790471

1343Fairy TaleUSU Championship 2004839472

1535The Hobbit or There and Back AgainUSU Personal Contest 2007712472

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014136472

1091Tmutarakan ExamsUSU Local Contest. March 20012026475

1162Currency ExchangeNEERC 2001 Northern Subregional777479

1900Brainwashing DeviceUral Championship 2012267479

2004Scientists from SpilkovoUral Regional School Programming Contest 2013195480

1428Jedi RiddleTimus Top Coders: First Challenge796481

1525PathPetrozavodsk Winter 2007. D.Gozman Contest703481

1236Decoding TaskNEERC 2002789482

1980Road to InvestorUral Championship 2013212482

2048HistoryUral Championship 2015100483

1871Seismic WavesUral FU Championship 2011332485

1628White StreaksUSU Championship 2008556486

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional478486

1329Galactic HistoryAutumn School Contest 2004807488

1401GamersAutumn School Contest 2005817488


2009Canteen LineUral Regional School Programming Contest 2013191490

1095Nikifor 3USU Local Contest. March 20011961491

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Contest126493

1430Crime and PunishmentTimus Top Coders: First Challenge772496

1273TieUSU Championship 2003779497

1579Coat TransportationAutumn School Contest 2007622499

1870Zinium 2Ural FU Championship 2011321501

1066GarlandNEERC 20002113502

1103Pencils and CirclesTetrahedron Team Online Contest May 2001732502

1891Language OceanNEERC 2011 Eastern Subregional318502

1212BattleshipAutumn School Contest 2002754503

1326Bottle TapsUral Championship 2004. Round 2776503

1316Electronic AuctionUral Championship 2004. Round 1773505

1322SpyUral Championship 2004. Round 2769507

1729Dead Man's ChestUral Regional School Programming Contest 2009457507

1056Computer NetNEERC 2000 Central Subregional2197510

1754Explosion in a PyramidUSU Personal Contest 2010425510

1884Way to the UniversityUral Regional School Programming Contest 2011314510

1928Another Ecology ProblemUral Regional School Programming Contest 2012247512

1182Team Them Up!NEERC 2001728514

1158Censored!NEERC 2001 Northern Subregional723515

1238FoldingNEERC 2002735518

1334CheckersAutumn School Contest 2004749525

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional123526

1069Prufer CodeUSU Personal Contest 20011959527

1045Funny GameUSU Local Contest. March 20002122529

1577E-mailAutumn School Contest 2007585530

1990PodracingNEERC 2013 Eastern Subregional178530

1366PresentsUral Championship 2005. Round 2747531

1838Samurai's StrokeUral Championship 2011332531

1600AirportUSU Personal Contest 2008553532

1803The Czechs' RiflesNEERC 2010 Eastern Subregional363534

1966Cycling RoadsUral FU Personal Contest 2013197534

1439Battle with You-Know-WhoUral Championship 2006705535

1143Electric PathDSAP Vietnam Online Contest November 2001689539

1314Chase in SubwayUral Championship 2004. Round 1716544

1400Cellular CharactersAutumn School Contest 2005730545

1962In Chinese RestaurantUral FU Personal Contest 2013193545

1027D++ AgainAutumn School Contest 20002092549

1806Mobile TelegraphsNEERC 2010 Eastern Subregional353549

1101Robot in the FieldTetrahedron Team Online Contest May 2001666552

1414Astronomical DatabaseUSU Championship 2005718552


1939First SealUral FU Championship 2012224557

1362Classmates 2Ural Championship 2005. Round 2709559

1064Binary SearchNEERC 20001895560

1605Devil's SequenceUSU Personal Contest 2008523562

1085MeetingSpring School Contest 20011794564

1710Boris, You Are Wrong!Ural Championship 2009445564

1004Sightseeing TripCentral European Olympiad in Informatics 19992046565

1713Key SubstringsNEERC 2009 Eastern Subregional410565

1061Buffer ManagerNEERC 20001867569

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest548569

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup185570

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005692571

1437Gasoline StationUSU Personal Contest 2006666571

1071Nikifor 2USU Personal Contest 20011805572

1767The House of Doctor DeeUral Championship 2010373572

1550Dean's Pyramid 3Ural Championship 2007575573

1698Square Country 5Petrozavodsk Winter 2009. USU Contest442573

1994The Emperor's planNEERC 2013 Eastern Subregional164573

1421Credit OperationsTimus Top Coders: First Challenge666574

1650BillionairesNEERC 2008 Eastern Subregional466574

1866Poetic FootUral FU Championship 2011279574

1822Hugo II's WarUSU Personal Contest 2011313575

1059ExpressionNEERC 2000 Central Subregional1941577

1448Lighting in HogwartsUral Championship 2006650580

1701Ostap and PartnersUral Championship 2009433580

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Contest105583

1534Football in GondorUSU Personal Contest 2007574584

1892Morning in KoltsovoNEERC 2011 Eastern Subregional272584

1903Unidentified ShipsUral Championship 2012217585

1070Local TimeUSU Personal Contest 20011752589

1445Christmas giftsUral Championship 2006639590

1375Bill CleversUral Championship 2005. Round 1672591

1592Chinese WatchesNEERC 2007 Eastern Subregional521591

1682Crazy ProfessorUSU Personal Contest 2009430592

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional213593

1659Regular TrianglesNEERC 2008 Eastern Subregional449595

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest523596

1172Ship RoutesRomanian Online Contest December 2001621598

1760Infernal WorkUSU Personal Contest 2010361598

1706Cipher Message 2Ural Championship 2009416603

1943Space RummyUral FU Personal Contest 2012198603

1067Disk TreeNEERC 20001753605

1690Army of MagesPetrozavodsk Winter 2009. USU Contest416608

1358CablesSpring School Contest 2005649609

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest452609

1054Hanoi TowerNEERC 2000 Central Subregional1836610

1940Not So Simple YearsUral FU Championship 2012202615

1465Pawn GamePetrozavodsk Winter 2006. USU Contest582617

1325DirtUral Championship 2004. Round 2625622

1932The Secret of IdentifierUral FU Championship 2012199623

1309DisputeUral Championship 2004. Round 1619628

1861Graveyard in DeyjaPetrozavodsk Summer 2011. USU Contest256631


2008SwiftyUral Regional School Programming Contest 2013145635

1961Cantonese DialectUral FU Personal Contest 2013163639

1234BricksNEERC 2002588644

1096Get the Right Route Plate!USU Local Contest. March 20011491645

1248Sequence SumUSU Personal Contest 2003589646

1088Ilya MurometzSpring School Contest 20011553651

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional193651

1254Die HardUSU Local Contest. March 2003582654

1174Weird PermutationsRomanian Online Contest December 2001566655

1542AutocompletionUral Championship 2007502655

1452Pascal vs. C++Timus Top Coders: Second Challenge568656

1606SlalomUSU Personal Contest 2008446657

1253NecrologuesUSU Local Contest. March 2003577660

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012189661

1755CakeUSU Personal Contest 2010325662

1186Chemical ReactionsNEERC 2001562663

1872Spacious OfficeUral FU Championship 2011240664

1443RailsUral Championship 2006564667

1773Metro to Every HomeUral Championship 2010316672

1500Pass LicensesNEERC 2006 Eastern Subregional519673

1832Arirang ShowUral Championship 2011260673

1332Genie BomberAutumn School Contest 2004581674

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009341674

1564Counting OnesUSU Championship 2007458675

1633HippogriffsUSU Championship 2008396678

1974Similar TunesUral Championship 2013147681

1371Cargo AgencyUral Championship 2005. Round 1581682

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup153682

1986Paul’s SaladsOpen Ural FU Championship 2013137682

1830Help in the RNOSUral Championship 2011254688

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest508695

1875Angry BirdsUral Regional School Programming Contest 2011228695

1780Gray CodeUral SU Championship 2010279696

1996Cipher Message 3NEERC 2013 Eastern Subregional133697

1274Fractional ArithmeticNEERC 2003 Central Subregional550700

1629TripUSU Championship 2008383700

1440Training ScheduleUral Championship 2006536701

1988Planet Ocean LandingOpen Ural FU Championship 2013133701

1486Equal SquaresUSU Championship 2006497707

1230Introspective ProgramNEERC 2002 Central Subregional532709

1286Starship TravelUSU Personal Contest 2004546709

1775Space BowlingUral SU Championship 2010273711

1301Cube in LabyrinthUral Championship 1998544713

1034Queens in Peaceful PositionsUral Championship 19991601714

1305Convex HullUral Championship 1998542715

1772Ski-Trails for RobotsUral Championship 2010296715

1057Amount of DegreesNEERC 2000 Central Subregional1556719

1611DecimationUral Championship 2008398726

1132Square Root508727

1037Memory ManagementUSU Championship 20001555729

1168Radio StationsRomanian Online Contest December 2001506731

1614National Project “Trams”Ural Championship 2008394734

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional261735

1434Buses in VasyukiUSU Personal Contest 2006514737

2017Best of a bad lotNEERC 2014 Eastern Subregional85737

1016Cube on the WalkUSU Local Contest. 19991555738

1405Goat in the Garden 5Autumn School Contest 2005536739

1235Cricket FieldNEERC 2002509742

1159FenceNEERC 2001 Northern Subregional497744

1250Sea BurialUSU Local Contest. March 2003509746

1825Ifrit Bomber 2USU Personal Contest 2011239746

1936RoshamboUral FU Championship 2012163753

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest411754

1646Godzilla Strikes Back!Autumn School Contest 2008351758

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest469763

1484Film RatingUSU Championship 2006460763

1587Flying PigNEERC 2007 Eastern Subregional400765

1424MinibusTimus Top Coders: First Challenge495768

1512ZiniumTimus Top Coders: Third Challenge445770

1738Computer SecurityUSU Championship 2009295771

1169PairsRomanian Online Contest December 2001477775

1716Alternative SolutionNEERC 2009 Eastern Subregional295778

1927Herbs and MagicUral Regional School Programming Contest 2012159778

1392Dreaming of Stars508779

2060Subpalindrome pairsPalindromic Contest 51779

1042Central HeatingUSU Championship 20001448783

1720Summit Online JudgeNEERC 2009 Eastern Subregional291788

1593Square Country. Version 2322792

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest444793

2052Physical EducationUral Championship 201557793

1705Gangster HaresUral Championship 2009312797

1689Fisherman and BarbellUSU Personal Contest 2009314804

1030TitanicUral Championship 19991418806

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest490807

1456Jedi Riddle 2Timus Top Coders: Second Challenge458810

1905Travel in TimeUral Championship 2012154810

1276TrainNEERC 2003 Central Subregional473812

1547Password SearchUral Championship 2007403812

1647Divide an Island!Autumn School Contest 2008327812

1165SubnumberNEERC 2001 Northern Subregional452817

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest223817

1715Another Ball KillerNEERC 2009 Eastern Subregional280818

1268Little ChuUSU Championship 2003467822

1105Observers ColoringTetrahedron Team Online Contest May 2001439830

1269Obscene Words FilterUSU Championship 2003462830

1379Cups TransportationUral Championship 2005. Round 1475832

1948The Robot on the LineUral FU Personal Contest 2012139841

1630TalismanUSU Championship 2008315847

1824Ifrit BomberUSU Personal Contest 2011209848

1147Shaping RegionsDSAP Vietnam Online Contest November 2001432852

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Contest68860

1006Square FramesUSU Championship 19971336861

1154Mages ContestUral Championship 2001. Round 2428861

1608Lucky Tickets 2008Ural Championship 2008334862

1921Chaos and OrderUral Regional School Programming Contest 2012142865

1436BillboardUSU Personal Contest 2006435868

1498Stroke at Full SpeedAutumn School Contest 2006402868

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest251869

1970皇后像廣場Ural FU Personal Contest 2013117871

1323ClassmatesUral Championship 2004. Round 2442874

1883Ent's BirthdayUral Regional School Programming Contest 2011179875

1979Resources DistributionUral Championship 2013112876

1836Babel FishUral Championship 2011197878

1863Peaceful AtomUral FU Championship 2011179878

1277Cops and ThievesNEERC 2003 Central Subregional436879

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest380879

1233Amusing NumbersNEERC 2002426884

1578Mammoth HuntAutumn School Contest 2007346886

1761Binary PalindromeUSU Personal Contest 2010240887

1983Nectar GatheringOpen Ural FU Championship 2013103887

1324Extra SpacesUral Championship 2004. Round 2435888

1342EnterpriseUSU Championship 2004441888

1976Game OptimizationUral Championship 2013110891

1373Pictura ex MachinaUral Championship 2005. Round 1441894

1949The Best Picture in the GalaxyUral FU Personal Contest 2012130895

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest300907

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest392909

1245PicturesUSU Personal Contest 2003414913

1784RoundersUral SU Championship 2010210914

1364LaraKillerUral Championship 2005. Round 2428917

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest272918

1580Dean's DebtsAutumn School Contest 2007333919

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest236922

1237Evacuation PlanNEERC 2002406928

1730ManBearPigUral Regional School Programming Contest 2009244931

1422FirefliesTimus Top Coders: First Challenge406933

1575Yekaterinburg Subway 2Autumn School Contest 2007328933

1278“… Connecting People”NEERC 2003 Central Subregional410934

1285Thread in a HyperspaceUSU Personal Contest 2004408943

1937Davy Jones’s OrganUral FU Championship 2012128944

1887Frequent Flyer CardNEERC 2011 Eastern Subregional163952

1857Alice and BandersnatchPetrozavodsk Summer 2011. USU Contest166954

1827Indigenous WarsUSU Personal Contest 2011184957

1398Bishop and Pawn352963

1879GOV-internship 2Ural Regional School Programming Contest 2011161967

1175Strange SequenceUSU Personal Contest 2002379974

1451Beerhouse TaleTimus Top Coders: Second Challenge378977

1040Airline CompanyUSU Championship 20001155979

1418Military StoryUSU Championship 2005399982

1569Networking the “Iset”USU Championship 2007312982

1435Financial ErrorUSU Personal Contest 2006382985

1151RadiobeaconsUral Championship 2001. Round 2371990

1591Abstract ThinkingNEERC 2007 Eastern Subregional307990

1907Coffee and BunsUral Championship 2012124991

1130Nikifor's WalkUSU Championship 2001369993

1768Circular StringsUral Championship 2010210995

1339BabiesUSU Championship 2004392997

1791Uncle Styopa and BusesUral Regional School Programming Contest 2010191997

1331VladislavaAutumn School Contest 20043881002

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest3061005

1965Pear TreesUral FU Personal Contest 20131001005

1862Very Wealthy MoleUral FU Championship 20111551006

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3511012

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest2511018

1722Observation DeckUral Regional School Programming Contest 20092221020

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Contest551032

1311Stable ConstructionUral Championship 2004. Round 13721035

1570Eating HighUSU Championship 20072951036

1518Jedi Riddle 3Timus Top Coders: Third Challenge3271039

1539Intelligence DataUSU Personal Contest 20073161046

1075Thread in a SpaceUSU Personal Contest 20019811047

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1161049

1790Searching for the TruthUral Regional School Programming Contest 20101811050

1985Prime SquareOpen Ural FU Championship 2013851055

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2041059

1687Numismatics for FunUSU Personal Contest 20092341067

2007Mutants versus MachinesUral Regional School Programming Contest 2013811082

1968Glass PyramidUral FU Personal Contest 2013921084

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1621106

1317HailUral Championship 2004. Round 23461110

1173Lazy SnailRomanian Online Contest December 20013281117

1511Fiscal OperationsTimus Top Coders: Third Challenge3021123

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1401123

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2271130

1341DeviceUSU Championship 20043431135

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1571139

1444ElephpotamusUral Championship 20063251142

1447Portkey NetworkUral Championship 20063241146

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3411149

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest1871151

1357Teakettle 1.0 for DummiesSpring School Contest 20053381153

1540Battle for the RingUSU Personal Contest 20072851156

1544Classmates 3Ural Championship 20072791160

1627JoinPetrozavodsk Winter 2008. ITMO Contest2321162

1766Humpty DumptyUral Championship 20101781165

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. USU Contest1331174

1458War GamesTimus Top Coders: Second Challenge3121178

1946Chinese Hockey 3Ural FU Personal Contest 2012961182

1408Polynomial MultiplicationAutumn School Contest 20053311183

1807Cartridges for MaximNEERC 2010 Eastern Subregional1581185

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2081188

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest2921193

1595Perfect Sequence1991199

1453QueenTimus Top Coders: Second Challenge3051204

1307ArchiverUral Championship 2004. Round 13161212

1736Chinese HockeyUSU Championship 20091831218

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup811222

1669Universal WordPetrozavodsk Winter 2008. USU Contest2091223

1686Photovoltaic SpaceshipUSU Personal Contest 20092021228

1947MeanderUral FU Personal Contest 2012921229

1035Cross-stitchUral Championship 19999231231

1310ACM DiagnosticsUral Championship 2004. Round 13111231

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2481231

1359ConstructionSpring School Contest 20053151234

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2441235

1546Japanese SortingUral Championship 20072601242

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1801249

1487Chinese FootballUSU Championship 20062771250

1657Cube SnakeNEERC 2008 Eastern Subregional2081252

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest2811256

1533Fat HobbitsUSU Personal Contest 20072611259

20503D-modelingUral Championship 2015321266

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2601269

1321Floor IndicatorUral Championship 2004. Round 23001275

1538Towers of GuardUSU Personal Contest 20072561282

1177Like ComparisonsUSU Personal Contest 20022811302

1050Preparing an ArticleUSU Local Contest. March 20008491313

1328FireballAutumn School Contest 20042931316

1099Work Scheduling6551318

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1411319

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional901322

1097Square Country 2USU Local Contest. March 20017211324

1393Average Common Prefix2901327

1065FrontierNEERC 20007921331

1360Philosophical DisputeUral Championship 2005. Round 22911334

1171Lost in SpaceRomanian Online Contest December 20012711343

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest1991345

1281River BasinNEERC 2003 Central Subregional2801352

1499KerchiefsAutumn School Contest 20062531360

2055Urban GeographyUral Championship 2015291363

1240Heroes of Might and MagicNEERC 20022711371

1950Martian FarmlandsUral FU Personal Contest 2012811377

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2381382

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest2481396

1318LogarithmUral Championship 2004. Round 22691417

1266Kirchhoff's LawUSU Championship 20032661420

1762Search for a Hiding-PlaceUSU Personal Contest 20101461422

1419Maps of the Island WorldsUSU Championship 20052721424

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Contest371428

1802Cube PuzzleNEERC 2010 Eastern Subregional1291433

1265MirrorUSU Championship 20032631435

1299PsyloniansSpring School Contest 20042651435

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1481435

1449Credit Operations 2Timus Top Coders: Second Challenge2531442

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2271446

1345HTMLUSU Championship 20042671447

1770The Party of Ural ChampionsUral Championship 20101401460

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup661463

1347BlogSpring School Contest 20052641464

1412Autumn TideUSU Championship 20052621476

1441From the History of Gringotts BankUral Championship 20062491477

1043Cover an ArcUSU Championship 20007541493

1170DesertRomanian Online Contest December 20012421498

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1171498

1251Cemetery ManagerUSU Local Contest. March 20032451519

1886Trip 2NEERC 2011 Eastern Subregional981525

1908Brute-force SearchUral Championship 2012771526

1764TranssibUral Championship 20101321542

1241Inlay CuttersNEERC 20022401543

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup621544

1565The Duel for ThreeUSU Championship 20071921565

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2201566

1894Non-Flying WeatherNEERC 2011 Eastern Subregional951568

1568Train Car SortingUSU Championship 20071911572

1782Jack's New WordUral SU Championship 20101171584

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1571590

1337BureaucracyAutumn School Contest 20042401594

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2411607

1485Football and LieUSU Championship 20062131608

1488ACM PokerUSU Championship 20062111623

1670AsteriskPetrozavodsk Summer 2008. USU Contest1531629

1707Hypnotoad's SecretUral Championship 20091471635

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest2361640

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1281643

1583CheeseNEERC 2007 Eastern Subregional1791660

1734Endgame DatabaseUSU Championship 20091311667

1831Tsyfirkin's LessonUral Championship 2011991667

1851GOV-internshipPetrozavodsk Summer 2011. USU Contest901679

1062TriathlonNEERC 20006241682

1516NostalgiaTimus Top Coders: Third Challenge1971692

2022Riding a ToadNEERC 2014 Eastern Subregional311707

1420Integer-Valued Complex DivisionUSU Championship 20052241716

1257HyphenationAutumn School Contest 20032181718

1508Japanese PuzzleNEERC 2006 Eastern Subregional1971720

1610CactusesUral Championship 20081621723

1046Geometrical DreamsUSU Local Contest. March 20006431727

1969Hong Kong TramUral FU Personal Contest 2013541727

1702CrossroadUral Championship 20091371747

1338AutomobilesUSU Championship 20042191750

1841CablewaysPetrozavodsk Summer 2010. USU Contest861755

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest1961774

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012021777

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1821785

1514National ParkTimus Top Coders: Third Challenge1861787

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest841792

1615Tram SolitaireUral Championship 20081551796

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. USU Contest831806

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest951812

1492Vasya's Dad 2Autumn School Contest 20061871816

1378Artificial IntelligenceUral Championship 2005. Round 12121817

2059Not common palindromesPalindromic Contest 161828

1425Queen 2Timus Top Coders: First Challenge2021830

1417Space Poker 2USU Championship 20052091833

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional621836

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1131843

1977Energy WallUral Championship 2013481843

1304ParallelepipedUral Championship 19982041845

1093DartsUSU Local Contest. March 20015111858

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1311883

1163ChapaevNEERC 2001 Northern Subregional1901886

1557Network AttackPetrozavodsk Summer 2007. NSU Contest1581891

1839The MentaculusUral Championship 2011861893

1503PolynomialNEERC 2006 Eastern Subregional1781894

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1301897

1781Clean CodeUral SU Championship 2010951916

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1271938

1216Two Pawns and One KingUSU Championship 20021871951

1634Spider MiteUSU Championship 20081311952

1455Freedom of SpeechTimus Top Coders: Second Challenge1841955

1532Lost in TranslationUSU Personal Contest 20071641960

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1261969

2053BiologyUral Championship 2015171969

1703Robotic ArmUral Championship 20091201975

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest861982

1187Statistical TroubleNEERC 20011811985

1757Gold BarsUSU Personal Contest 20101011998

1148Building TowersDSAP Vietnam Online Contest November 20011782004

1396Maximum. Version 21782005

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1812013

1945Many-armed BrothersUral FU Personal Contest 2012522021

1063Domino PuzzleNEERC 20005112046

1188LibraryNEERC 20011742061

1267Yekaterinburg SubwayUSU Championship 20031802063

1397Points Game1642071

1288AstrolocationUSU Personal Contest 20041792087

1232Asteroid LandingNEERC 2002 Central Subregional1742089

1041NikiforUSU Championship 20005342097

1315MDPAR and MIIARUral Championship 2004. Round 11782102

1543Dance RevolutionUral Championship 20071492109

1833Hopes of RowingUral Championship 2011762113

1074Very Short ProblemUSU Personal Contest 20014782126

1867NanotechnologiesUral FU Championship 2011682128

1549Another Japanese PuzzleUral Championship 20071472136

1092TransversalUSU Local Contest. March 20014432137

1504Good MannersNEERC 2006 Eastern Subregional1552158

1541ChaseUSU Personal Contest 20071482159

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1142160

1972Game TestingUral Championship 2013392182

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21732195

1652Banking CrisisNEERC 2008 Eastern Subregional1142201

2051PhysicsUral Championship 2015142215

1850Space TourismPetrozavodsk Summer 2010. USU Contest662217

1655Somali PiratesNEERC 2008 Eastern Subregional1112256

1270UnicubeUSU Championship 20031632265

1835Swamp DoctorUral Championship 2011702271

1256Cemetery GuardUSU Local Contest. March 20031602278

1368Goat in the Garden 3Ural Championship 2005. Round 21652295

1882Old NokiaUral Regional School Programming Contest 2011622296

1481Winning ChancesUSU Championship 20061452314

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest192314

1284Space PokerUSU Personal Contest 20041602320

1978E-LiteUral Championship 2013362324

2006Kirill the GardenerUral Regional School Programming Contest 2013322344

1758Bald Spot Revisited 2USU Personal Contest 2010842360

1717Eligibility RulesNEERC 2009 Eastern Subregional892397

1739FaryuksUSU Championship 2009882399

1829Routing TablesUSU Personal Contest 2011672412

1895Steaks on BoardNEERC 2011 Eastern Subregional582421

1275Knights of the Round TableNEERC 2003 Central Subregional1472498

1735Theft of the CenturyUSU Championship 2009842501

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional842525

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional422542

1865The Island of MärketUral FU Championship 2011552553

1704DemodulationUral Championship 2009902567

1520Empire Strikes BackTimus Top Coders: Third Challenge1262575

1300TaxesUral Championship 19981412615

1859Last Season of Team.GOVPetrozavodsk Summer 2011. USU Contest542624

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1112625

1308Dean's PyramidUral Championship 2004. Round 11402635

2057Non-palidromic cuttingPalindromic Contest 82641

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest622643

1609Tram TileUral Championship 20081022646

1312TrayUral Championship 2004. Round 11392653

1239Ghost BustersNEERC 20021352657

1454Rectangles 2Timus Top Coders: Second Challenge1322671

1798Fire Circle. Version 272692

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1212750

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest872761

1566Triangular PostcardsUSU Championship 20071042772

1856War and PeacePetrozavodsk Summer 2011. USU Contest502798

1505Oil TransferNEERC 2006 Eastern Subregional1172804

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest502808

1975Model of the EarthUral Championship 2013282813

1858Magic CubePetrozavodsk Summer 2011. USU Contest492846

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup292850

1681Brother Bear's GardenUSU Personal Contest 2009812862

1694Killer WordsPetrozavodsk Winter 2009. USU Contest802877

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest802877

1637Triangle Game 2USU Championship 2008852897

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup282926

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest672944

2049ChemistryUral Championship 201582953

1482Triangle GameUSU Championship 20061112964

1464LightPetrozavodsk Winter 2006. USU Contest1132971

2058100500 palidnromesPalindromic Contest 62971

141140 Islands KnightsUSU Championship 20051242996

1938Caribbean TriangleUral FU Championship 2012333030

1442Floo PowderUral Championship 20061163037

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Contest123050

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Contest123050

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest523069

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional333074

1597Chernobyl’ Eagle on a Roof. Version 2143097

1395Pascal vs. C++. Version 21123103

1367Top SecretUral Championship 2005. Round 21193114

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest733120

1058ChocolateNEERC 2000 Central Subregional3493128

1622EndspielPetrozavodsk Winter 2008. ITMO Contest793159

1957MundialPetrozavodsk Winter 2013. Kontur Cup253176

1438Time Limit ExceededUSU Personal Contest 20061103219

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest493225

1834Tennis RacketUral Championship 2011463245

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest763269

1429BiscuitsTimus Top Coders: First Challenge1073317

1909Space ReconUral Championship 2012303320

2016Magic and ScienceNEERC 2014 Eastern Subregional113333

1166Funny Card GameNEERC 2001 Northern Subregional1063377

1616Square Country 4Ural Championship 2008773407

1999The secret moduleNEERC 2013 Eastern Subregional193436

1466Magic SquarePetrozavodsk Winter 2006. USU Contest953480

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1053508

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest383510

1632LasersUSU Championship 2008683529

2054AstronomyUral Championship 201553542

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup213586

1509Domino RecognitionNEERC 2006 Eastern Subregional893597

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest783610

1733Forgotten TechnologyUSU Championship 2009553616


1765Error 404Ural Championship 2010493710

1847ZamkadyePetrozavodsk Summer 2010. USU Contest353744

1973Location GeneratorUral Championship 2013183818

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest933916

1778Chinese Hockey 2Ural SU Championship 2010413945

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Contest73947

2042NikitaPetrozavodsk Summer 2014. Ural FU Contest73947

2061oeis A216264Palindromic Contest 23961

1661DodecahedronPetrozavodsk Winter 2008. USU Contest564057

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest544184

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest714230

1967Programmer CasinoUral FU Personal Contest 2013164252

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest734340

1271Sailing DirectionsUSU Championship 2003804354

1594Aztec Treasure464480

1344Gigantic TurnipUSU Championship 2004794502

1340CucarachaUSU Championship 2004784553

1460WiresPetrozavodsk Winter 2006. USU Contest704568

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest684618

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest464624

1763Expert FleaUral Championship 2010374658

1771A Deputy's MorningUral Championship 2010374658

1797Summit Online Judge. Version 2184804

1801The Revolution CupNEERC 2010 Eastern Subregional314857

1426RectanglesTimus Top Coders: First Challenge684975

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest615073

1598DSA Attack45156

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest685171

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest435305

1365Testing CalculatorUral Championship 2005. Round 2655355

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest215416

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest645451

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest415512

1372Death StarUral Championship 2005. Round 1635524

1906The Lost CivilizationUral Championship 2012145533

1848Fly HuntPetrozavodsk Summer 2010. USU Contest195809

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest346086

1668Death Star 2Petrozavodsk Winter 2008. USU Contest336228

1842Local RootsPetrozavodsk Summer 2010. USU Contest176240

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest476319

1674Drunk KingPetrozavodsk Summer 2008. USU Contest326323

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest206343

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional326500

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest336538

1548Sakura and StatisticsUral Championship 2007377135

1363HalftonesUral Championship 2005. Round 2467172

1653Death ConveyorNEERC 2008 Eastern Subregional287184

1536Delights of Pipe-weedUSU Personal Contest 2007347752

1596Knight Mare98025

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest248269

1432Twofold LuckUSU Personal Contest 2006368397

1840Victim of AdvertisingUral Championship 2011118653

1376Dean's Pyramid 2Ural Championship 2005. Round 1358962

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest199157

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup29261

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest249342

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1510622

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1410789

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest2710902

1415Mobile LifeUSU Championship 20052511467

1374MisereUral Championship 2005. Round 12511522

1708Sum of Digits 2Ural Championship 20091112223

1399Economical Director1812435

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2113012

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest1413235

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest1513704

1369Cockroach RaceUral Championship 2005. Round 21615448

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1218335

1589SokobanNEERC 2007 Eastern Subregional324127

1394Ships. Version 2331030