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Problem set


IDTitleSourceAuthorsDifficulty

1000A+B Problem7238918

1001Reverse Root2070318

1785Lost in LocalizationUral Regional School Programming Contest 20101202018

1293EniyaSpring School Contest 20041990421

1409Two GangstersAutumn School Contest 20051915822

1877Bicycle CodesUral Regional School Programming Contest 2011831023

2012About Grisha N.NEERC 2014 Eastern Subregional413623

1820Ural SteaksUSU Personal Contest 2011763127

1264WorkdaysAutumn School Contest 20031386729

1787Turn for MEGAUral Regional School Programming Contest 2010756129

2001Mathematicians and BerriesUral Regional School Programming Contest 2013418529

1197Lonesome KnightSpring School Contest 20021233832

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011578732

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional446735

1639Chocolate 2Autumn School Contest 2008811336

1924Four ImpsUral Regional School Programming Contest 2012417137

1313Some Words about SportUral Championship 2004. Round 11004341

2023Donald is a postmanNEERC 2014 Eastern Subregional232641

1068Sum2579743

12091, 10, 100, 1000...Autumn School Contest 2002940443

1319HotelUral Championship 2004. Round 2932544

1567SMS-spamUSU Championship 2007759244

1225FlagsNEERC 2002 Central Subregional899245

1581TeamworkAutumn School Contest 2007735945

2066Simple ExpressionUral Regional School Programming Contest 2015145445

1263ElectionsAutumn School Contest 2003842948

1585PenguinsNEERC 2007 Eastern Subregional676849

1991The battle near the swampNEERC 2013 Eastern Subregional242951

1100Final StandingsTetrahedron Team Online Contest May 2001751652

1876Centipede's MorningUral Regional School Programming Contest 2011361752

1327FusesAutumn School Contest 2004777853

1881Long problem statementUral Regional School Programming Contest 2011340255

1243Divorce of the Seven DwarfsUSU Personal Contest 2003719556

1493One Step from HappinessAutumn School Contest 2006665856

1893A380NEERC 2011 Eastern Subregional335056

1110PowerBulgarian Online Contest September 2001686757

1349FarmSpring School Contest 2005719158

1607TaxiUSU Personal Contest 2008543559

1496SpammerAutumn School Contest 2006621660

1545HieroglyphsUral Championship 2007576661

1636Penalty TimeUSU Championship 2008464763

1837Isenbaev's NumberUral Championship 2011321263

1925British Scientists Save the WorldUral Regional School Programming Contest 2012246763

1196History ExamSpring School Contest 2002618764

1149Sinus Dances601065

1654Cipher MessageNEERC 2008 Eastern Subregional440566

1723Sandro's BookUral Regional School Programming Contest 2009380567

1563BayanUSU Championship 2007487768

1617Flat SpotsUral Championship 2008460668

2002Test TaskUral Regional School Programming Contest 2013179268

1131CopyingUSU Championship 2001558070

2035Another Dress RehearsalUral Regional School Programming Contest 2014133670

1457Heating MainTimus Top Coders: Second Challenge554071

1025Democracy in DangerAutumn School Contest 20001687872

1224SpiralNEERC 2002 Central Subregional553572

2005Taxi for ProgrammersUral Regional School Programming Contest 2013166174

1083Factorials!!!Spring School Contest 20011404476

1792Hamming CodeUral Regional School Programming Contest 2010292776

1935Tears of DrownedUral FU Championship 2012197977

1712Cipher GrilleNEERC 2009 Eastern Subregional331478

2011Long StatementUral Regional School Programming Contest 2013154279

2031Overturned NumbersUral Regional School Programming Contest 2014118479

1502Domino DotsNEERC 2006 Eastern Subregional464080

1139City BlocksNEERC 2001 Central Subregional479082

1194HandshakesSpring School Contest 2002483182

1106Two TeamsTetrahedron Team Online Contest May 2001470283

1290SabotageSpring School Contest 2004490284

1638BookwormUSU Championship 2008349784

1404Easy to Hack!Autumn School Contest 2005491385

1120Sum of Sequential NumbersAutumn School Contest 2001458286

1119MetroAutumn School Contest 2001450187

1180Stone GameUSU Personal Contest 2002448188

2068Game of NutsUral Regional School Programming Contest 201573288

1297PalindromeSpring School Contest 2004443492

1601AntiCAPSUSU Personal Contest 2008344392

1902Neo-VeniceUral Championship 2012167393

1005Stone PileUSU Championship 19971294694

1146Maximum SumDSAP Vietnam Online Contest November 2001417094

1161StripiesNEERC 2001 Northern Subregional418994

1510OrderNEERC 2006 Eastern Subregional397894

2056ScholarshipUral Championship 201583094

1796Amusement ParkUral Regional School Programming Contest 2010232495

16421D MazeAutumn School Contest 2008305896

1446Sorting HatUral Championship 2006411697

2025Line FightingUral Regional School Programming Contest 201496397

2033DevicesUral Regional School Programming Contest 201495897

1009K-based NumbersUSU Championship 19971231598

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001397898

1644A Whole Lot of WalnutsAutumn School Contest 2008298798

1731DillUral Regional School Programming Contest 2009260798

1370MagicianUral Championship 2005. Round 2420199

1786Sandro's BiographyUral Regional School Programming Contest 2010223699

2010Sasha the Young GrandmasterUral Regional School Programming Contest 20131210101

1203Scientific ConferenceUSU Local Contest. March 20023877102

1214Strange ProcedureAutumn School Contest 20023894103

1118Nontrivial NumbersAutumn School Contest 20013756104

1136ParliamentNEERC 2001 Central Subregional3786104

1228ArrayNEERC 2002 Central Subregional3801105

1020RopeAutumn School Contest 200011376106

1014Product of DigitsUSU Local Contest. 199911246108

1296HyperjumpSpring School Contest 20043784108

1777AnindilyakwaUral SU Championship 20102051108

1873GOV ChroniclesUral Regional School Programming Contest 20111723108

1573AlchemyAutumn School Contest 20073050109

1330IntervalsAutumn School Contest 20043766110

1126Magnetic StormsUSU Championship 20013466113

1192Ball in a DreamSpring School Contest 20023469114

1079MaximumWinter Mathematical Festival Varna 20019336115

1082Gaby IvanushkaSpring School Contest 20019248115

1582BookmakersNEERC 2007 Eastern Subregional2845116

1226esreveR redrONEERC 2002 Central Subregional3427117

2018The Debut AlbumNEERC 2014 Eastern Subregional805117

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional801117

1044Lucky Tickets. Easy!USU Championship 200010081118

1086CryptographySpring School Contest 20018845120

1219Symbolic SequenceUSU Championship 20023328120

1353Milliard Vasya's FunctionSpring School Contest 20053441121

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023231122

1711Code NamesNEERC 2009 Eastern Subregional2111122

1123SalaryAutumn School Contest 20013153124

2000Grand Theft Array VUral Regional School Programming Contest 2013974125

1260Nudnik PhotographerAutumn School Contest 20033239126

1336Problem of Ben BetsalelAutumn School Contest 20043247127

1283DwarfUSU Personal Contest 20043193128

1683FridgeUSU Personal Contest 20092164129

1688Team.GOV!USU Personal Contest 20092160129

1868Prediction ContestUral FU Championship 20111424132

1725Sold Out!Ural Regional School Programming Contest 20091929133

1982Electrification PlanUral FU Championship 2013921134

1022Genealogical TreeAutumn School Contest 20008849136

1352Mersenne PrimesSpring School Contest 20053054136

1964Chinese DialectsUral FU Personal Contest 2013960139

1021Sacrament of the SumAutumn School Contest 20008623140

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101572140

1222Chernobyl’ EaglesUSU Championship 20022827141

1402CocktailsAutumn School Contest 20052967141

1931Excellent TeamUral FU Championship 20121078141

1612Tram ForumUral Championship 20082176144

1740Deer is Better!USU Championship 20091765144

1026Questions and AnswersAutumn School Contest 20008305145

1142RelationsDSAP Vietnam Online Contest November 20012689146

1178Akbardin’s RoadsUSU Personal Contest 20022674147

1576Telephone TariffsAutumn School Contest 20072261147

1084Goat in the GardenSpring School Contest 20017184148

1864Get-Together at Den'sUral FU Championship 20111264148

1821BiathlonUSU Personal Contest 20111382149

1984Dummy GuyUral FU Championship 2013828149

2073Log FilesUral Regional School Programming Contest 2015432149

2069Hard RockUral Regional School Programming Contest 2015427150

1572Yekaterinozavodsk Great WellAutumn School Contest 20072173153

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional802153

1167Bicolored HorsesRomanian Online Contest December 20012532155

1210Kind SpiritsAutumn School Contest 20022561156

1306Sequence MedianUral Championship 19982592158

1756One and a Half DiggersUSU Personal Contest 20101523158

1073Square CountryUSU Personal Contest 20016807159

1709Penguin-AviaUral Championship 20091733159

1295Crazy NotionsSpring School Contest 20042554160

1017StaircasesUSU Local Contest. 19997399163

1135RecruitsNEERC 2001 Central Subregional2381165

1157Young TilerUral Championship 2001. Round 22375165

1280Topological SortingNEERC 2003 Central Subregional2463165

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional936165

1354Palindrome. Again PalindromeSpring School Contest 20052486167

1613For Fans of StatisticsUral Championship 20081882167

1878Rubinchik's CubeUral Regional School Programming Contest 20111113167

1506Columns of NumbersNEERC 2006 Eastern Subregional2220168

1874Football GoalUral Regional School Programming Contest 20111111168

1272Non-Yekaterinburg SubwayUSU Championship 20032390170

1213Cockroaches!Autumn School Contest 20022337171

1586Threeprime NumbersNEERC 2007 Eastern Subregional1928171

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101285172

1012K-based Numbers. Version 26973173

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1629174

1846GCD 2010Petrozavodsk Summer 2010. USU Contest1086174

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional885174

1640Circle of WinterAutumn School Contest 20081658176

1944Record of the Attack at the OrbitUral FU Personal Contest 2012837176

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional531176

1335White ThesisAutumn School Contest 20042328177

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091441177

1769Old Ural LegendUral Championship 20101346177

1413Mars JumperUSU Championship 20052331178

1685OrthographyUSU Personal Contest 20091559179

1800Murphy's LawNEERC 2010 Eastern Subregional1226179

1134CardsNEERC 2001 Central Subregional2176180

1193Queue at the ExamSpring School Contest 20022193180

1930Ivan's CarUral Regional School Programming Contest 2012851180

1102Strange DialogTetrahedron Team Online Contest May 20012123183

1789Searching for the DodecahedronUral Regional School Programming Contest 20101202183

1048Superlong SumsUSU Local Contest. March 20006396184

1133Fibonacci SequenceNEERC 2001 Central Subregional2090187

1207Median on the PlaneUSU Local Contest. March 20022107187

2091Natural SelectionUral FU Personal Contest 2014230187

1869New Year CruiseUral FU Championship 2011991188

1114BoxesBulgarian Online Contest September 20012057190

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1534190

1645Ski RaceAutumn School Contest 20081521192

1164FillwordNEERC 2001 Northern Subregional2031193

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional483193

1152False MirrorsUral Championship 2001. Round 22009195

1208Legendary Teams ContestUSU Local Contest. March 20022025195

2065Different SumsUral Regional School Programming Contest 2015325196

1423String TaleTimus Top Coders: First Challenge2043197

1680The First NonqualifyingUSU Personal Contest 20091405198

1138Integer PercentageNEERC 2001 Central Subregional1966199

1885Passenger ComfortNEERC 2011 Eastern Subregional933199

1023ButtonsAutumn School Contest 20005996201

1112CoverBulgarian Online Contest September 20011943201

1348Goat in the Garden 2Spring School Contest 20052045203

1494MonobilliardsAutumn School Contest 20061792208

1987Nested SegmentsUral FU Championship 2013589208

2070Interesting NumbersUral Regional School Programming Contest 2015305208

1002Phone NumbersCentral European Olympiad in Informatics 19995704212

1249Ancient NecropolisUSU Local Contest. March 20031882213

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015297214

1200Horns and HoofsUSU Local Contest. March 20021834215

1490Fire CircleAutumn School Contest 20061726216

1515CashmasterTimus Top Coders: Third Challenge1674218

2024Adventure TimeUral Regional School Programming Contest 2014421218

1183Brackets SequenceNEERC 20011798219

1635Mnemonics and PalindromesUSU Championship 20081330220

1052Rabbit HuntUSU Local Contest. March 20005301222

1491Unreal StoryAutumn School Contest 20061667224

1011ConductorsUSU Championship 19975376225

1125HopscotchUSU Championship 20011727226

1737Mnemonics and Palindromes 3USU Championship 20091121226

2095ScrumUral FU Personal Contest 2014189226

1033LabyrinthUral Championship 19995260229

1242WerewolfUSU Personal Contest 20031749229

1333Genie Bomber 2Autumn School Contest 20041802229

1795Husband in a ShopUral Regional School Programming Contest 2010961229

1204IdempotentsUSU Local Contest. March 20021693233

1049Brave BalloonistsUSU Local Contest. March 20004994236

1122GameAutumn School Contest 20011651236

1355Bald Spot RevisitedSpring School Contest 20051748237

1150Page NumbersUral Championship 2001. Round 21639239

1889Airport AnnouncementsNEERC 2011 Eastern Subregional773239

1303Minimal CoverageUral Championship 19981702240

2067Friends and BerriesUral Regional School Programming Contest 2015263240

1191Catch the thief!Spring School Contest 20021633241

1205By the Underground or by Foot?USU Local Contest. March 20021634241

1826MinefieldUSU Personal Contest 2011851241

2098Lada PrioraUral FU Personal Contest 2014177241

1922Superhero TeamUral Regional School Programming Contest 2012631242

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1702245

1108HeritageBulgarian Online Contest September 20011584246

1247Check a SequenceUSU Personal Contest 20031634246

1603EruditeUSU Personal Contest 20081267249

1113JeepBulgarian Online Contest September 20011556251

2003Simple MagicUral Regional School Programming Contest 2013475253

1433DiamondsUSU Personal Contest 20061577254

1109ConferenceBulgarian Online Contest September 20011529255

1298KnightSpring School Contest 20041600255

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014188256

1590Bacon’s CipherNEERC 2007 Eastern Subregional1286256

1998The old PadawanNEERC 2013 Eastern Subregional474256

1010Discrete FunctionUSTU PhysTech Cup 20004687258

1195Ouths and CrossesSpring School Contest 20021520259

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1380259

1080Map ColoringWinter Mathematical Festival Varna 20014124260

1718RejudgeNEERC 2009 Eastern Subregional981260

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1424263

1658Sum of DigitsNEERC 2008 Eastern Subregional1100264

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031501267

1779The Great TeamUral SU Championship 2010824267

1028StarsUral Championship 19994491268

1823Ideal GasUSU Personal Contest 2011766268

2034CaravansUral Regional School Programming Contest 2014341268

1087The Time to Take StonesSpring School Contest 20013932270

1684Jack's Last WordUSU Personal Contest 20091024271

1220StacksUSU Championship 20021462272

1179Numbers in TextUSU Personal Contest 20021432274

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012555275

1117HierarchyAutumn School Contest 20011411276

1211Collective GuaranteeAutumn School Contest 20021441276

1726VisitsUral Regional School Programming Contest 2009922276

2021Scarily interesting!NEERC 2014 Eastern Subregional334277

1047Simple CalculationsUSU Local Contest. March 20004219279

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest879279

1981Parallel and PerpendicularUral FU Championship 2013436279

1244GentlemenUSU Personal Contest 20031433280

1537EntsUSU Personal Contest 20071264282

1741Communication FiendUSU Championship 2009897282

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1320284

1933Guns for Battle!Ural FU Championship 2012524288

1032Find a MultipleUral Championship 19993625289

1013K-based Numbers. Version 3329290

1501Sense of BeautyNEERC 2006 Eastern Subregional1274291

1018Binary Apple TreeUSU Local Contest. 19994129292

1024PermutationsAutumn School Contest 20004116293

1377Lara CroftUral Championship 2005. Round 11420293

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest834293

1753BookshelfUSU Personal Contest 2010818293

1184Cable MasterNEERC 20011336294

1053PinocchioNEERC 2000 Central Subregional3950297

1497Cutting a SquareAutumn School Contest 20061247298

1036Lucky Tickets3998301

1551Sumo TournamentUral Championship 20071165301

1934Black SpotUral FU Championship 2012496304

1989SubpalindromesUral FU Championship 2013397306

1215Exactness of Projectile HitAutumn School Contest 20021295307

1127Colored BricksUSU Championship 20011267308

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional707308

1124MosaicUSU Championship 20011261309

1992CVSNEERC 2013 Eastern Subregional389311

1116Piecewise Constant FunctionAutumn School Contest 20011248312

1153SupercomputerUral Championship 2001. Round 21250313

1190Bar of ChocolateSpring School Contest 20021255313

1137Bus RoutesNEERC 2001 Central Subregional1239315

1941Scary Martian WordUral FU Personal Contest 2012462316

1294Mars SatellitesSpring School Contest 20041288317

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014286318

2046The First Day at SchoolUral Championship 2015238318

1227Rally ChampionshipNEERC 2002 Central Subregional1249319

1588JamaicaNEERC 2007 Eastern Subregional1029320

1793Tray 2Ural Regional School Programming Contest 2010682321

1521War Games 2Timus Top Coders: Third Challenge1128323

1121BranchesAutumn School Contest 20011197325

1008Image EncodingUSTU PhysTech Cup 20003710326

1320Graph DecompositionUral Championship 2004. Round 21251326

1904The Lessons of the PastUral Championship 2012470326

1302Delta-waveUral Championship 19981249327

1185WallNEERC 20011188331

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest834331

1029MinistryUral Championship 19993149333

1517Freedom of ChoiceTimus Top Coders: Third Challenge1094333

1450Russian PipelinesTimus Top Coders: Second Challenge1169336

1604Country of FoolsUSU Personal Contest 2008934337

1201Which Day Is It?USU Local Contest. March 20021161338

1406Next NumberAutumn School Contest 20051226339

1218Episode N-th: The Jedi TournamentUSU Championship 20021170340

1346Intervals of MonotonicityUSU Championship 20041214341

1060Flip GameNEERC 20003256342

1156Two RoundsUral Championship 2001. Round 21141342

1160NetworkNEERC 2001 Northern Subregional1163343

1223Chernobyl’ Eagle on a RoofUSU Championship 20021160343

2026Dean and ScheduleUral Regional School Programming Contest 2014264343

1648YachtsAutumn School Contest 2008844344

1431DiplomasUSU Personal Contest 20061138351

1651Shortest SubchainNEERC 2008 Eastern Subregional823351

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional343351

1090In the Army NowUSU Local Contest. March 20012855353

1031Railway TicketsUral Championship 19993397354

1282Game TreeNEERC 2003 Central Subregional1146354

1246Tethered DogUSU Personal Contest 20031125356

1261TipsAutumn School Contest 20031136356

1140Swamp IncidentNEERC 2001 Central Subregional1090358

1483Table FootballUSU Championship 20061036359

1262Pseudo-Roman NumberAutumn School Contest 20031124360

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest988361

1292Mars Space StationsSpring School Contest 20041125362

1007Code WordsUSU Championship 19973319365

1828Approximation by a ProgressionUSU Personal Contest 2011560365

1574Mathematicians and bracketsAutumn School Contest 2007901366

2047MathsUral Championship 2015204368

1495One-two, One-two 2Autumn School Contest 20061006369

1901Space ElevatorsUral Championship 2012412370

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest654373

1403CourierAutumn School Contest 20051113374

1854Negotiations with ParthiansPetrozavodsk Summer 2011. USU Contest499374

2063Black and WhiteUral Regional School Programming Contest 2015165375

1055CombinationsNEERC 2000 Central Subregional3126376

1141RSA Attack1037376

1176HyperchannelsUSU Personal Contest 20021042376

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional488376

1078SegmentsWinter Mathematical Festival Varna 20012835378

1356Something EasierSpring School Contest 20051094378

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional241379

1039Anniversary PartyUSU Championship 20003129380

1783Nuclear Arms RaceUral SU Championship 2010576380

1995Illegal spicesNEERC 2013 Eastern Subregional316381

1229Strong BrickworkNEERC 2002 Central Subregional1037383

1759Long-LiversUSU Personal Contest 2010624383

1259How to Become Star?Autumn School Contest 20031054384

1963KiteUral FU Personal Contest 2013341384

1003ParityCentral European Olympiad in Informatics 19993132387

1279WarehouseNEERC 2003 Central Subregional1042388

2062Ambitious ExperimentUral Regional School Programming Contest 2015159388

1289One Way TicketUSU Personal Contest 20041044390

2030Awesome Backup SystemUral Regional School Programming Contest 2014231390

1115ShipsBulgarian Online Contest September 2001985394

1407One-two, One-twoAutumn School Contest 20051053395

1111SquaresBulgarian Online Contest September 2001980396

1217Unlucky TicketsUSU Championship 20021002396

1562GM-pineappleUSU Championship 2007835396

1427SMSTimus Top Coders: First Challenge1009397

1489Points on a ParallelepipedAutumn School Contest 2006934397

1631Drunk King 2USU Championship 2008733397

1287Mars CanalsUSU Personal Contest 20041022398

1923Scary PoliticsUral Regional School Programming Contest 2012380398

1860FiborialPetrozavodsk Summer 2011. USU Contest465401

1015Test the Difference!USU Local Contest. 19993000402

1343Fairy TaleUSU Championship 20041024403

1774Barber of the Army of MagesUral SU Championship 2010543403

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest702404

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014222406

1350CanteenSpring School Contest 20051015407

1094E-screenUSU Local Contest. March 20012471408

2078Bowling gameUral Championship 2016107408

1077Travelling Tours948410

1107Warehouse ProblemTetrahedron Team Online Contest May 2001938411

1252Sorting the TombstonesUSU Local Contest. March 2003965414

1732Ministry of TruthUSU Championship 2009606415

1221Malevich Strikes Back!USU Championship 2002954416

1602ElevatorUSU Personal Contest 2008756416

1128Partition into GroupsUSU Championship 2001931418

1291Gear-wheelsSpring School Contest 2004972419

1571InterpretersUSU Championship 2007782422

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001920423

1038Spell CheckerUSU Championship 20002809424

1507Difficult DecisionNEERC 2006 Eastern Subregional871424

1513Lemon TaleTimus Top Coders: Third Challenge857424

1480CouponsUSU Championship 2006872426

1700AwakeningUral Championship 2009638427

1416ConfidentialUSU Championship 2005964429

1519Formula 1Timus Top Coders: Third Challenge848429

1181Cutting a Painted PolygonUSU Personal Contest 2002909431

1942Attack at the OrbitUral FU Personal Contest 2012336431

1089Verification with a VocabularySpring School Contest 20012455432

1202Rectangles TravelUSU Local Contest. March 2002907432

1258PoolAutumn School Contest 2003931434

1776Anniversary FireworkUral SU Championship 2010499438

1019Line PaintingUSU Local Contest. 19992748439

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Contest200440

2081Faulty dialUral Championship 201698441

1641DutiesAutumn School Contest 2008650445

1890Money out of Thin AirNEERC 2011 Eastern Subregional409447

2071Juice CocktailsUral Regional School Programming Contest 2015137447

1900Brainwashing DeviceUral Championship 2012339448

1129Door PaintingUSU Championship 2001862451

1410CrackUSU Championship 2005916451

1643Attack of the Dark FortressAutumn School Contest 2008638453

2099Space InvaderUral FU Personal Contest 201489454

1051Simple Game on a GridUSU Local Contest. March 20002535464

1238FoldingNEERC 2002856465

1535The Hobbit or There and Back AgainUSU Personal Contest 2007762465

1728Curse on Team.GOVUral Regional School Programming Contest 2009542466

1072RoutingUSU Personal Contest 20012300470

1155TroubleduonsUral Championship 2001. Round 2828470

1189Pairs of IntegersNEERC 2001831471

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional456474

1326Bottle TapsUral Championship 2004. Round 2850479

1329Galactic HistoryAutumn School Contest 2004854480

1162Currency ExchangeNEERC 2001 Northern Subregional809481

1273TieUSU Championship 2003839481

1091Tmutarakan ExamsUSU Local Contest. March 20012092482

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional313482

1316Electronic AuctionUral Championship 2004. Round 1842483

1428Jedi RiddleTimus Top Coders: First Challenge827483

1236Decoding TaskNEERC 2002817486

1971Graphics SettingsUral Championship 2013260486

1401GamersAutumn School Contest 2005851487

1525PathPetrozavodsk Winter 2007. D.Gozman Contest730487

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup266490

1628White StreaksUSU Championship 2008591491

1103Pencils and CirclesTetrahedron Team Online Contest May 2001783492

1430Crime and PunishmentTimus Top Coders: First Challenge813492

1884Way to the UniversityUral Regional School Programming Contest 2011371493

1579Coat TransportationAutumn School Contest 2007663496

1095Nikifor 3USU Local Contest. March 20012022498

1098Questions1931499

1322SpyUral Championship 2004. Round 2812501

1212BattleshipAutumn School Contest 2002787503

2074Timus problems classifierQualification of eastern subregional contest 2015101503

1182Team Them Up!NEERC 2001773506

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional500506

1158Censored!NEERC 2001 Northern Subregional766508

1891Language OceanNEERC 2011 Eastern Subregional358509

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014174511

1066GarlandNEERC 20002168512

1439Battle with You-Know-WhoUral Championship 2006769513

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest645513

1577E-mailAutumn School Contest 2007640514

1056Computer NetNEERC 2000 Central Subregional2267517

1870Zinium 2Ural FU Championship 2011355517

1871Seismic WavesUral FU Championship 2011355517

1754Explosion in a PyramidUSU Personal Contest 2010457520

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014171520

1045Funny GameUSU Local Contest. March 20002256521

1729Dead Man's ChestUral Regional School Programming Contest 2009484521

1414Astronomical DatabaseUSU Championship 2005790522

1980Road to InvestorUral Championship 2013241522

2048HistoryUral Championship 2015141522

1069Prufer CodeUSU Personal Contest 20012053526

1334CheckersAutumn School Contest 2004777527

1600AirportUSU Personal Contest 2008594527

2004Scientists from SpilkovoUral Regional School Programming Contest 2013223527

1366PresentsUral Championship 2005. Round 2778530

1314Chase in SubwayUral Championship 2004. Round 1760535

1101Robot in the FieldTetrahedron Team Online Contest May 2001711541

1143Electric PathDSAP Vietnam Online Contest November 2001717542

2064CaterpillarsUral Regional School Programming Contest 2015111542

2009Canteen LineUral Regional School Programming Contest 2013216544

1362Classmates 2Ural Championship 2005. Round 2757545

1400Cellular CharactersAutumn School Contest 2005758546

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional164547

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005748551

1534Football in GondorUSU Personal Contest 2007637555

1437Gasoline StationUSU Personal Contest 2006714557

1605Devil's SequenceUSU Personal Contest 2008562557

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Contest156557

1004Sightseeing TripCentral European Olympiad in Informatics 19992169558

1027D++ AgainAutumn School Contest 20002150559

1928Another Ecology ProblemUral Regional School Programming Contest 2012267560

1760Infernal WorkUSU Personal Contest 2010423561

1465Pawn GamePetrozavodsk Winter 2006. USU Contest670563

1698Square Country 5Petrozavodsk Winter 2009. USU Contest484565

1838Samurai's StrokeUral Championship 2011351565

1375Bill CleversUral Championship 2005. Round 1731566

1448Lighting in HogwartsUral Championship 2006696566

1650BillionairesNEERC 2008 Eastern Subregional507566

1713Key SubstringsNEERC 2009 Eastern Subregional446566

1822Hugo II's WarUSU Personal Contest 2011357566

1966Cycling RoadsUral FU Personal Contest 2013228566

1085MeetingSpring School Contest 20011858570

1710Boris, You Are Wrong!Ural Championship 2009476570

1803The Czechs' RiflesNEERC 2010 Eastern Subregional376572

1064Binary SearchNEERC 20001939573

1071Nikifor 2USU Personal Contest 20011883573

1962In Chinese RestaurantUral FU Personal Contest 2013225573

1172Ship RoutesRomanian Online Contest December 2001676575

1421Credit OperationsTimus Top Coders: First Challenge693576

1061Buffer ManagerNEERC 20001924577

1682Crazy ProfessorUSU Personal Contest 2009476577

1550Dean's Pyramid 3Ural Championship 2007600579

1806Mobile TelegraphsNEERC 2010 Eastern Subregional369583

1706Cipher Message 2Ural Championship 2009462587

1592Chinese WatchesNEERC 2007 Eastern Subregional554589

1059ExpressionNEERC 2000 Central Subregional1985590

1659Regular TrianglesNEERC 2008 Eastern Subregional484593

1070Local TimeUSU Personal Contest 20011817594

1067Disk TreeNEERC 20001866595

1358CablesSpring School Contest 2005688598

1325DirtUral Championship 2004. Round 2677599

1445Christmas giftsUral Championship 2006656600

1939First SealUral FU Championship 2012246601

2080WalletUral Championship 201669604

2089Experienced coachUral Championship 201669604

1701Ostap and PartnersUral Championship 2009447606

1309DisputeUral Championship 2004. Round 1668607

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest544607

1690Army of MagesPetrozavodsk Winter 2009. USU Contest449608

1767The House of Doctor DeeUral Championship 2010383611

1990PodracingNEERC 2013 Eastern Subregional193611

1892Morning in KoltsovoNEERC 2011 Eastern Subregional294616

1866Poetic FootUral FU Championship 2011294620

1054Hanoi TowerNEERC 2000 Central Subregional1886621

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest473622

1198Jobbery663623

1332Genie BomberAutumn School Contest 2004650629

2092BoleroUral FU Personal Contest 201461634

1903Unidentified ShipsUral Championship 2012236635

1542AutocompletionUral Championship 2007544638

1861Graveyard in DeyjaPetrozavodsk Summer 2011. USU Contest288639

1076Trash1677640

1248Sequence SumUSU Personal Contest 2003619642

1254Die HardUSU Local Contest. March 2003616645

1174Weird PermutationsRomanian Online Contest December 2001599647

1371Cargo AgencyUral Championship 2005. Round 1638647

1452Pascal vs. C++Timus Top Coders: Second Challenge601648

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009386650

1234BricksNEERC 2002605653

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional228654

1096Get the Right Route Plate!USU Local Contest. March 20011532656

1606SlalomUSU Personal Contest 2008475657

1253NecrologuesUSU Local Contest. March 2003604658

1186Chemical ReactionsNEERC 2001588662

1943Space RummyUral FU Personal Contest 2012215662

1500Pass LicensesNEERC 2006 Eastern Subregional551666

1940Not So Simple YearsUral FU Championship 2012221666

1961Cantonese DialectUral FU Personal Contest 2013192667

1994The Emperor's planNEERC 2013 Eastern Subregional176667

1564Counting OnesUSU Championship 2007490669

1088Ilya MurometzSpring School Contest 20011580670

1486Equal SquaresUSU Championship 2006548674

1286Starship TravelUSU Personal Contest 2004595679

2060Subpalindrome pairsPalindromic Contest 98679

1443RailsUral Championship 2006575683

1932The Secret of IdentifierUral FU Championship 2012213690

1168Radio StationsRomanian Online Contest December 2001560692

1755CakeUSU Personal Contest 2010341692

1132Square Root558693

1772Ski-Trails for RobotsUral Championship 2010336694

1274Fractional ArithmeticNEERC 2003 Central Subregional578695

1872Spacious OfficeUral FU Championship 2011260698

2008SwiftyUral Regional School Programming Contest 2013166698

1440Training ScheduleUral Championship 2006561699

1633HippogriffsUSU Championship 2008412699

1250Sea BurialUSU Local Contest. March 2003564704

1773Metro to Every HomeUral Championship 2010331704

1057Amount of DegreesNEERC 2000 Central Subregional1660705

1305Convex HullUral Championship 1998573706

1230Introspective ProgramNEERC 2002 Central Subregional554711

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest521711

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup180712

1301Cube in LabyrinthUral Championship 1998565715

1832Arirang ShowUral Championship 2011275715

1611DecimationUral Championship 2008430717

1629TripUSU Championship 2008400719

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional206721

1034Queens in Peaceful PositionsUral Championship 19991659722

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest519723

1169PairsRomanian Online Contest December 2001533726

1775Space BowlingUral SU Championship 2010297726

1780Gray CodeUral SU Championship 2010297726

1825Ifrit Bomber 2USU Personal Contest 2011276727

1830Help in the RNOSUral Championship 2011270728

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012203728

1037Memory ManagementUSU Championship 20001623731

1405Goat in the Garden 5Autumn School Contest 2005563732

1484Film RatingUSU Championship 2006504732

1159FenceNEERC 2001 Northern Subregional522741

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest553745

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Contest114745

1235Cricket FieldNEERC 2002526750

1016Cube on the WalkUSU Local Contest. 19991600751

1875Angry BirdsUral Regional School Programming Contest 2011239755

1593Square Country. Version 2364757

1614National Project “Trams”Ural Championship 2008407757

1424MinibusTimus Top Coders: First Challenge521762

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional277770

1392Dreaming of Stars530777

1986Paul’s SaladsUral FU Championship 2013150779

1974Similar TunesUral Championship 2013158781

2052Physical EducationUral Championship 201591781

1512ZiniumTimus Top Coders: Third Challenge460783

1646Godzilla Strikes Back!Autumn School Contest 2008365783

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest418785

1647Divide an Island!Autumn School Contest 2008362789

1042Central HeatingUSU Championship 20001499791

1716Alternative SolutionNEERC 2009 Eastern Subregional315794

1587Flying PigNEERC 2007 Eastern Subregional407797

1323ClassmatesUral Championship 2004. Round 2505799

1988Planet Ocean LandingUral FU Championship 2013146799

1105Observers ColoringTetrahedron Team Online Contest May 2001476802

1030TitanicUral Championship 19991489804

1268Little ChuUSU Championship 2003497805

1689Fisherman and BarbellUSU Personal Contest 2009337808

1456Jedi Riddle 2Timus Top Coders: Second Challenge479810

1276TrainNEERC 2003 Central Subregional494811

1738Computer SecurityUSU Championship 2009305812

1379Cups TransportationUral Championship 2005. Round 1504816

1996Cipher Message 3NEERC 2013 Eastern Subregional142816

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest452817

1547Password SearchUral Championship 2007421820

1269Obscene Words FilterUSU Championship 2003487822

2017Best of a bad lotNEERC 2014 Eastern Subregional105828

1147Shaping RegionsDSAP Vietnam Online Contest November 2001465829

1927Herbs and MagicUral Regional School Programming Contest 2012177829

1720Summit Online JudgeNEERC 2009 Eastern Subregional300832

1705Gangster HaresUral Championship 2009322834

1165SubnumberNEERC 2001 Northern Subregional462835

1936RoshamboUral FU Championship 2012173841

1436BillboardUSU Personal Contest 2006468843

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest239852

1277Cops and ThievesNEERC 2003 Central Subregional466859

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest434862

1154Mages ContestUral Championship 2001. Round 2446864

1342EnterpriseUSU Championship 2004471867

1373Pictura ex MachinaUral Championship 2005. Round 1474867

1715Another Ball KillerNEERC 2009 Eastern Subregional287869

1970皇后像廣場Ural FU Personal Contest 2013145869

1006Square FramesUSU Championship 19971377875

1824Ifrit BomberUSU Personal Contest 2011226880

1498Stroke at Full SpeedAutumn School Contest 2006416881

1578Mammoth HuntAutumn School Contest 2007369881

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest397886

1608Lucky Tickets 2008Ural Championship 2008346886

1905Travel in TimeUral Championship 2012166888

1324Extra SpacesUral Championship 2004. Round 2451893

1630TalismanUSU Championship 2008319896

2093All Roads Lead to SnowdriftUral FU Personal Contest 201440900

1245PicturesUSU Personal Contest 2003437903

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest264904

1233Amusing NumbersNEERC 2002434905

1237Evacuation PlanNEERC 2002435905

1580Dean's DebtsAutumn School Contest 2007357910

1175Strange SequenceUSU Personal Contest 2002423914

1285Thread in a HyperspaceUSU Personal Contest 2004436921

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest293921

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest259921

1921Chaos and OrderUral Regional School Programming Contest 2012158923

1761Binary PalindromeUSU Personal Contest 2010253924

1836Babel FishUral Championship 2011210927

1364LaraKillerUral Championship 2005. Round 2439931

1422FirefliesTimus Top Coders: First Challenge421939

1575Yekaterinburg Subway 2Autumn School Contest 2007345940

1827Indigenous WarsUSU Personal Contest 2011211940

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest309942

1863Peaceful AtomUral FU Championship 2011190943

1948The Robot on the LineUral FU Personal Contest 2012148943

1784RoundersUral SU Championship 2010226944

1883Ent's BirthdayUral Regional School Programming Contest 2011187954

1278“… Connecting People”NEERC 2003 Central Subregional416959

1339BabiesUSU Championship 2004423963

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Contest86963

1398Bishop and Pawn370964

1730ManBearPigUral Regional School Programming Contest 2009257964

1979Resources DistributionUral Championship 2013126964

1937Davy Jones’s OrganUral FU Championship 2012149968

1949The Best Picture in the GalaxyUral FU Personal Contest 2012144968

1976Game OptimizationUral Championship 2013125971

1040Airline CompanyUSU Championship 20001217973

1435Financial ErrorUSU Personal Contest 2006404973

1887Frequent Flyer CardNEERC 2011 Eastern Subregional182976

1451Beerhouse TaleTimus Top Coders: Second Challenge393983

1591Abstract ThinkingNEERC 2007 Eastern Subregional328983

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest279988

1965Pear TreesUral FU Personal Contest 2013126990

1418Military StoryUSU Championship 2005411992

1857Alice and BandersnatchPetrozavodsk Summer 2011. USU Contest182992

1130Nikifor's WalkUSU Championship 2001386993

1569Networking the “Iset”USU Championship 2007326996

1331VladislavaAutumn School Contest 2004406997

1983Nectar GatheringUral FU Championship 20131141005

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest3241006

1907Coffee and BunsUral Championship 20121451008

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3631026

1768Circular StringsUral Championship 20102241026

1539Intelligence DataUSU Personal Contest 20073391029

1075Thread in a SpaceUSU Personal Contest 200110391035

1311Stable ConstructionUral Championship 2004. Round 13861039

1173Lazy SnailRomanian Online Contest December 20013671046

1570Eating HighUSU Championship 20073101046

1151RadiobeaconsUral Championship 2001. Round 23661048

1518Jedi Riddle 3Timus Top Coders: Third Challenge3411048

1791Uncle Styopa and BusesUral Regional School Programming Contest 20102011053

2055Urban GeographyUral Championship 2015641065

1862Very Wealthy MoleUral FU Championship 20111661071

1879GOV-internship 2Ural Regional School Programming Contest 20111651074

1722Observation DeckUral Regional School Programming Contest 20092291077

1790Searching for the TruthUral Regional School Programming Contest 20101961079

1317HailUral Championship 2004. Round 23701083

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2441099

1341DeviceUSU Championship 20043691100

1687Numismatics for FunUSU Personal Contest 20092451100

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2151101

1447Portkey NetworkUral Championship 20063521103

1434Buses in VasyukiUSU Personal Contest 20063521113

1627JoinPetrozavodsk Winter 2008. ITMO Contest2571126

1540Battle for the RingUSU Personal Contest 20073081129

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. USU Contest1581134

1444ElephpotamusUral Championship 20063421135

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1571144

1968Glass PyramidUral FU Personal Contest 20131071151

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2391155

2007Mutants versus MachinesUral Regional School Programming Contest 2013961159

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3151162

1511Fiscal OperationsTimus Top Coders: Third Challenge3061164

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3501165

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1231171

1458War GamesTimus Top Coders: Second Challenge3271175

1408Polynomial MultiplicationAutumn School Contest 20053461178

1357Teakettle 1.0 for DummiesSpring School Contest 20053441179

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1701179

1544Classmates 3Ural Championship 20072891182

1595Perfect Sequence2191183

1985Prime SquareUral FU Championship 2013951187

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest1981191

1736Chinese HockeyUSU Championship 20092021207

1533Fat HobbitsUSU Personal Contest 20072871209

1453QueenTimus Top Coders: Second Challenge3171211

1359ConstructionSpring School Contest 20053341213

2094Thousand ImpsUral FU Personal Contest 2014271216

1307ArchiverUral Championship 2004. Round 13281218

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest3041219

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1641220

1766Humpty DumptyUral Championship 20101861225

1310ACM DiagnosticsUral Championship 2004. Round 13251229

1807Cartridges for MaximNEERC 2010 Eastern Subregional1691234

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2591235

1035Cross-stitchUral Championship 19999601239

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2581254

1099Work Scheduling7181259

1546Japanese SortingUral Championship 20072701262

1393Average Common Prefix3181264

1487Chinese FootballUSU Championship 20062871266

1657Cube SnakeNEERC 2008 Eastern Subregional2211267

1669Universal WordPetrozavodsk Winter 2008. USU Contest2161273

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup961276

1538Towers of GuardUSU Personal Contest 20072711277

1321Floor IndicatorUral Championship 2004. Round 23121278

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest2851280

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1911284

1686Photovoltaic SpaceshipUSU Personal Contest 20092071292

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2661306

1946Chinese Hockey 3Ural FU Personal Contest 20121041307

1177Like ComparisonsUSU Personal Contest 20022921310

1360Philosophical DisputeUral Championship 2005. Round 23071318

1947MeanderUral FU Personal Contest 20121031319

1097Square Country 2USU Local Contest. March 20017551323

1171Lost in SpaceRomanian Online Contest December 20012881323

1050Preparing an ArticleUSU Local Contest. March 20008791327

1328FireballAutumn School Contest 20043021330

1065FrontierNEERC 20008261335

1281River BasinNEERC 2003 Central Subregional2921353

1240Heroes of Might and MagicNEERC 20022821376

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2521376

1318LogarithmUral Championship 2004. Round 22891377

1499KerchiefsAutumn School Contest 20062621379

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup881380

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2061392

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Contest561400

1762Search for a Hiding-PlaceUSU Personal Contest 20101621412

1345HTMLUSU Championship 20042851413

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1461416

1419Maps of the Island WorldsUSU Championship 20052841421

1441From the History of Gringotts BankUral Championship 20062711421

1449Credit Operations 2Timus Top Coders: Second Challenge2681425

1299PsyloniansSpring School Contest 20042781427

1265MirrorUSU Championship 20032751433

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2411436

1896War Games 2.1251446

1266Kirchhoff's LawUSU Championship 20032721448

2097Snowboarding on SpilnayaUral FU Personal Contest 2014211451

1347BlogSpring School Contest 20052771454

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional971455

1170DesertRomanian Online Contest December 20012591466

2059Not common palindromesPalindromic Contest 401467

1412Autumn TideUSU Championship 20052741471

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1581474

1950Martian FarmlandsUral FU Personal Contest 2012911476

1770The Party of Ural ChampionsUral Championship 20101491510

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2391516

1043Cover an ArcUSU Championship 20007751521

1886Trip 2NEERC 2011 Eastern Subregional1131523

1251Cemetery ManagerUSU Local Contest. March 20032551524

1802Cube PuzzleNEERC 2010 Eastern Subregional1341534

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup781537

20503D-modelingUral Championship 2015411546

1851GOV-internshipPetrozavodsk Summer 2011. USU Contest1121561

1568Train Car SortingUSU Championship 20072041564

1241Inlay CuttersNEERC 20022471566

1488ACM PokerUSU Championship 20062301567

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2551583

1337BureaucracyAutumn School Contest 20042521584

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1231596

1565The Duel for ThreeUSU Championship 20071981609

1908Brute-force SearchUral Championship 2012871611

1670AsteriskPetrozavodsk Summer 2008. USU Contest1671613

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1061615

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest471621

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1661622

1782Jack's New WordUral SU Championship 20101271627

1485Football and LieUSU Championship 20062211628

1764TranssibUral Championship 20101371633

1583CheeseNEERC 2007 Eastern Subregional1881678

1707Hypnotoad's SecretUral Championship 20091551678

1257HyphenationAutumn School Contest 20032321686

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1361696

2085Magic ProgrammerUral Championship 2016181703

1062TriathlonNEERC 20006411714

1508Japanese PuzzleNEERC 2006 Eastern Subregional2081714

1557Network AttackPetrozavodsk Summer 2007. NSU Contest1861715

1734Endgame DatabaseUSU Championship 20091391717

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest1011721

1338AutomobilesUSU Championship 20042321723

1378Artificial IntelligenceUral Championship 2005. Round 12331726

1420Integer-Valued Complex DivisionUSU Championship 20052311733

1841CablewaysPetrozavodsk Summer 2010. USU Contest1001737

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1541741

2075Take care of your eyebrows!Qualification of eastern subregional contest 2015221744

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2091747

1516NostalgiaTimus Top Coders: Third Challenge2001752

1046Geometrical DreamsUSU Local Contest. March 20006601761

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012121773

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1511773

1831Tsyfirkin's LessonUral Championship 20111051773

1610CactusesUral Championship 20081671782

1514National ParkTimus Top Coders: Third Challenge1941803

1702CrossroadUral Championship 20091431810

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1871830

1492Vasya's Dad 2Autumn School Contest 20061941839

1304ParallelepipedUral Championship 19982131844

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. USU Contest931849

1417Space Poker 2USU Championship 20052151856

1425Queen 2Timus Top Coders: First Challenge2081856

1615Tram SolitaireUral Championship 20081601856

1093DartsUSU Local Contest. March 20015341861

2096All InclusiveUral FU Personal Contest 2014141874

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1031878

1757Gold BarsUSU Personal Contest 20101191883

1781Clean CodeUral SU Championship 20101081888

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1211891

1532Lost in TranslationUSU Personal Contest 20071791899

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1401903

1163ChapaevNEERC 2001 Northern Subregional1961913

1503PolynomialNEERC 2006 Eastern Subregional1851916

1455Freedom of SpeechTimus Top Coders: Second Challenge1941942

1148Building TowersDSAP Vietnam Online Contest November 20011911959

1634Spider MiteUSU Championship 20081401966

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1361970

1216Two Pawns and One KingUSU Championship 20021931975

1397Points Game1811978

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest2001998

1839The MentaculusUral Championship 2011921999

1187Statistical TroubleNEERC 20011882000

1396Maximum. Version 21862010

1969Hong Kong TramUral FU Personal Contest 2013572010

1315MDPAR and MIIARUral Championship 2004. Round 11942018

2022Riding a ToadNEERC 2014 Eastern Subregional372026

1267Yekaterinburg SubwayUSU Championship 20031912032

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1312040

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1862047

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional662049

1977Energy WallUral Championship 2013542049

1063Domino PuzzleNEERC 20005342050

1541ChaseUSU Personal Contest 20071652051

1041NikiforUSU Championship 20005712055

1703Robotic ArmUral Championship 20091242067

1288AstrolocationUSU Personal Contest 20041872085

1074Very Short ProblemUSU Personal Contest 20015082095

1188LibraryNEERC 20011792095

1867NanotechnologiesUral FU Championship 2011802095

1549Another Japanese PuzzleUral Championship 20071562129

2053BiologyUral Championship 2015272131

1092TransversalUSU Local Contest. March 20014632140

2090Crossroads of DestinyUral FU Personal Contest 2014112142

1232Asteroid LandingNEERC 2002 Central Subregional1772145

1504Good MannersNEERC 2006 Eastern Subregional1622172

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest872188

1543Dance RevolutionUral Championship 20071512195

1655Somali PiratesNEERC 2008 Eastern Subregional1232201

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21792211

2058100500 palidnromesPalindromic Contest 232223

1850Space TourismPetrozavodsk Summer 2010. USU Contest752247

1945Many-armed BrothersUral FU Personal Contest 2012562258

1833Hopes of RowingUral Championship 2011802266

1270UnicubeUSU Championship 20031692281

1284Space PokerUSU Personal Contest 20041702282

1256Cemetery GuardUSU Local Contest. March 20031662295

1652Banking CrisisNEERC 2008 Eastern Subregional1172305

1882Old NokiaUral Regional School Programming Contest 2011712320

1481Winning ChancesUSU Championship 20061512335

1895Steaks on BoardNEERC 2011 Eastern Subregional702341

1368Goat in the Garden 3Ural Championship 2005. Round 21682348

2051PhysicsUral Championship 2015232389

1835Swamp DoctorUral Championship 2011752399

1758Bald Spot Revisited 2USU Personal Contest 2010912405

1829Routing TablesUSU Personal Contest 2011762416

1735Theft of the CenturyUSU Championship 2009952436

1717Eligibility RulesNEERC 2009 Eastern Subregional952457

1739FaryuksUSU Championship 2009942460

1599Winding Number172497

1978E-LiteUral Championship 2013422522

1275Knights of the Round TableNEERC 2003 Central Subregional1522523

1520Empire Strikes BackTimus Top Coders: Third Challenge1342554

2006Kirill the GardenerUral Regional School Programming Contest 2013382560

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1212566

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Contest262567

1972Game TestingUral Championship 2013412571

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional902580

1865The Island of MärketUral FU Championship 2011632583

1704DemodulationUral Championship 2009972588

1300TaxesUral Championship 19981482603

1454Rectangles 2Timus Top Coders: Second Challenge1422606

1308Dean's PyramidUral Championship 2004. Round 11472622

2087TrainsUral Championship 201682648

2084Technical debtUral Championship 201682649

1798Fire Circle. Version 2172653

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional482685

1312TrayUral Championship 2004. Round 11432690

1239Ghost BustersNEERC 20021392697

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup402705

1859Last Season of Team.GOVPetrozavodsk Summer 2011. USU Contest602721

1609Tram TileUral Championship 20081052743

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest672756

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest902790

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1252797

2083The Guardian of TraditionsUral Championship 201672804

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest582809

1566Triangular PostcardsUSU Championship 20071092812

1694Killer WordsPetrozavodsk Winter 2009. USU Contest892819

1505Oil TransferNEERC 2006 Eastern Subregional1202873

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest902876

1637Triangle Game 2USU Championship 2008922891

1395Pascal vs. C++. Version 21262907

1464LightPetrozavodsk Winter 2006. USU Contest1212921

1482Triangle GameUSU Championship 20061182938

1856War and PeacePetrozavodsk Summer 2011. USU Contest533023

1058ChocolateNEERC 2000 Central Subregional3763044

1681Brother Bear's GardenUSU Personal Contest 2009823049

1367Top SecretUral Championship 2005. Round 21273050

1438Time Limit ExceededUSU Personal Contest 20061223052

141140 Islands KnightsUSU Championship 20051263071

1957MundialPetrozavodsk Winter 2013. Kontur Cup343074

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup343075

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest703096

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest863132

1429BiscuitsTimus Top Coders: First Challenge1193137

1442Floo PowderUral Championship 20061173145

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest783171

1858Magic CubePetrozavodsk Summer 2011. USU Contest503174

2086Find DenisUral Championship 201653178

2079Memory leaksUral Championship 201653179

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Contest193186

2057Non-palidromic cuttingPalindromic Contest 133190

1975Model of the EarthUral Championship 2013313198

1597Chernobyl’ Eagle on a Roof. Version 2213207

1909Space ReconUral Championship 2012383257

1622EndspielPetrozavodsk Winter 2008. ITMO Contest823268

2049ChemistryUral Championship 2015143285

2088Nostalgic EveningUral Championship 201643312

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional373313

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest543316

2061OEIS A216264Palindromic Contest 123335

1834Tennis RacketUral Championship 2011513343

1166Funny Card GameNEERC 2001 Northern Subregional1123346

1466Magic SquarePetrozavodsk Winter 2006. USU Contest1033386

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1133411

1938Caribbean TriangleUral FU Championship 2012353420

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest523423

1509Domino RecognitionNEERC 2006 Eastern Subregional953558

1616Square Country 4Ural Championship 2008783585

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest433604

1778Chinese Hockey 2Ural SU Championship 2010513653

1733Forgotten TechnologyUSU Championship 2009603654

1199Mouse903660

1632LasersUSU Championship 2008703686

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest813694

1765Error 404Ural Championship 2010553694

2077ReductionsQualification of eastern subregional contest 201553720

1598DSA Attack163744

1847ZamkadyePetrozavodsk Summer 2010. USU Contest403820

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest993849

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup253865

2082PokerUral Championship 201623933

1999The secret moduleNEERC 2013 Eastern Subregional214002

1973Location GeneratorUral Championship 2013224098

2054AstronomyUral Championship 201594148

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest764191

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest804195

1967Programmer CasinoUral FU Personal Contest 2013224209

1661DodecahedronPetrozavodsk Winter 2008. USU Contest584230

2076VasianaQualification of eastern subregional contest 201534292

2016Magic and ScienceNEERC 2014 Eastern Subregional124328

1460WiresPetrozavodsk Winter 2006. USU Contest774398

2042NikitaPetrozavodsk Summer 2014. Ural FU Contest114400

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest554425

1271Sailing DirectionsUSU Championship 2003824439

1344Gigantic TurnipUSU Championship 2004824532

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest734549

1340CucarachaUSU Championship 2004814582

1594Aztec Treasure474758

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Contest94863

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest474895

1797Summit Online Judge. Version 2224937

1763Expert FleaUral Championship 2010385002

1771A Deputy's MorningUral Championship 2010385002

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest655034

1426RectanglesTimus Top Coders: First Challenge695122

1801The Revolution CupNEERC 2010 Eastern Subregional335136

1799Sasha and swag strings35168

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest715180

1365Testing CalculatorUral Championship 2005. Round 2705223

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest475274

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest695311

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest455466

1372Death StarUral Championship 2005. Round 1655593

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest235771

1848Fly HuntPetrozavodsk Summer 2010. USU Contest235789

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest555808

1842Local RootsPetrozavodsk Summer 2010. USU Contest225969

1906The Lost CivilizationUral Championship 2012166012

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest366253

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional366363

1668Death Star 2Petrozavodsk Winter 2008. USU Contest356392

1363HalftonesUral Championship 2005. Round 2536633

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest226633

1674Drunk KingPetrozavodsk Summer 2008. USU Contest336639

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest356681

1653Death ConveyorNEERC 2008 Eastern Subregional317139

1596Knight Mare147311

1536Delights of Pipe-weedUSU Personal Contest 2007387479

1432Twofold LuckUSU Personal Contest 2006398223

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest268351

1840Victim of AdvertisingUral Championship 2011138866

1376Dean's Pyramid 2Ural Championship 2005. Round 1378925

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest219209

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest269337

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup49660

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1610732

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest2910758

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1610980

1399Economical Director2311087

1374MisereUral Championship 2005. Round 12711337

1415Mobile LifeUSU Championship 20052611599

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest1712450

1708Sum of Digits 2Ural Championship 20091212584

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest1812872

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2213111

1369Cockroach RaceUral Championship 2005. Round 21616072

1548Sakura and StatisticsUral Championship 20071116828

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1417481

1589SokobanNEERC 2007 Eastern Subregional423734

1394Ships. Version 2527972