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Problem set


1000A+B Problem7762817

1001Reverse Root2249117

1785Lost in LocalizationUral Regional School Programming Contest 20101351618

1293EniyaSpring School Contest 20042211519

1409Two GangstersAutumn School Contest 20052124020

2012About Grisha N.NEERC 2014 Eastern Subregional573620

1877Bicycle CodesUral Regional School Programming Contest 2011955222

1264WorkdaysAutumn School Contest 20031539327

2001Mathematicians and BerriesUral Regional School Programming Contest 2013535227

1820Ural SteaksUSU Personal Contest 2011804228

1787Turn for MEGAUral Regional School Programming Contest 2010839729

1197Lonesome KnightSpring School Contest 20021318031

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011639532

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional509334

2066Simple ExpressionUral Regional School Programming Contest 2015253934

1639Chocolate 2Autumn School Contest 2008878335

1924Four ImpsUral Regional School Programming Contest 2012480236

2023Donald is a postmanNEERC 2014 Eastern Subregional302938

1313Some Words about SportUral Championship 2004. Round 11071240

12091, 10, 100, 1000...Autumn School Contest 20021014541


1225FlagsNEERC 2002 Central Subregional981742

1319HotelUral Championship 2004. Round 2989743

1567SMS-spamUSU Championship 2007809743

1581TeamworkAutumn School Contest 2007792444

2100Wedding DinnerUral FU Junior Championship 2016124146

1263ElectionsAutumn School Contest 2003894147

1585PenguinsNEERC 2007 Eastern Subregional743047

1991The battle near the swampNEERC 2013 Eastern Subregional300348

1100Final StandingsTetrahedron Team Online Contest May 2001800750

1876Centipede's MorningUral Regional School Programming Contest 2011400951

1327FusesAutumn School Contest 2004829652

1493One Step from HappinessAutumn School Contest 2006716254

1243Divorce of the Seven DwarfsUSU Personal Contest 2003760455

1110PowerBulgarian Online Contest September 2001723056

1881Long problem statementUral Regional School Programming Contest 2011369956

1893A380NEERC 2011 Eastern Subregional368656

1349FarmSpring School Contest 2005760857

1607TaxiUSU Personal Contest 2008584657

1545HieroglyphsUral Championship 2007624459

1496SpammerAutumn School Contest 2006645460

1196History ExamSpring School Contest 2002657762

1636Penalty TimeUSU Championship 2008503062

1837Isenbaev's NumberUral Championship 2011358062

1925British Scientists Save the WorldUral Regional School Programming Contest 2012277663

1149Sinus Dances635164

1654Cipher MessageNEERC 2008 Eastern Subregional473165

1563BayanUSU Championship 2007531466

1617Flat SpotsUral Championship 2008495067

1723Sandro's BookUral Regional School Programming Contest 2009411467

1131CopyingUSU Championship 2001585169

2002Test TaskUral Regional School Programming Contest 2013207569

2035Another Dress RehearsalUral Regional School Programming Contest 2014165469

1025Democracy in DangerAutumn School Contest 20001778070

1224SpiralNEERC 2002 Central Subregional583271

1457Heating MainTimus Top Coders: Second Challenge579271

1083Factorials!!!Spring School Contest 20011494574

2005Taxi for ProgrammersUral Regional School Programming Contest 2013189175

1792Hamming CodeUral Regional School Programming Contest 2010314376

1935Tears of DrownedUral FU Championship 2012225277

2031Overturned NumbersUral Regional School Programming Contest 2014149377

2056ScholarshipUral Championship 2015129177

1712Cipher GrilleNEERC 2009 Eastern Subregional350178

1502Domino DotsNEERC 2006 Eastern Subregional489579

1638BookwormUSU Championship 2008387480

1106Two TeamsTetrahedron Team Online Contest May 2001499581

1139City BlocksNEERC 2001 Central Subregional500781

2011Long StatementUral Regional School Programming Contest 2013174981

1119MetroAutumn School Contest 2001493182

1194HandshakesSpring School Contest 2002500382

1290SabotageSpring School Contest 2004511683

2068Game of NutsUral Regional School Programming Contest 2015103683

1404Easy to Hack!Autumn School Contest 2005514484

1120Sum of Sequential NumbersAutumn School Contest 2001479785

1180Stone GameUSU Personal Contest 2002466688

1146Maximum SumDSAP Vietnam Online Contest November 2001454989

1297PalindromeSpring School Contest 2004464791

1005Stone PileUSU Championship 19971372692

1510OrderNEERC 2006 Eastern Subregional420092

1601AntiCAPSUSU Personal Contest 2008362792

1161StripiesNEERC 2001 Northern Subregional436393

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001419196

1203Scientific ConferenceUSU Local Contest. March 2002424496

1446Sorting HatUral Championship 2006431196

16421D MazeAutumn School Contest 2008322296

1796Amusement ParkUral Regional School Programming Contest 2010248196

1902Neo-VeniceUral Championship 2012182496

1009K-based NumbersUSU Championship 19971296097

1370MagicianUral Championship 2005. Round 2443597

2025Line FightingUral Regional School Programming Contest 2014117397

1644A Whole Lot of WalnutsAutumn School Contest 2008315698

1731DillUral Regional School Programming Contest 2009277299

2033DevicesUral Regional School Programming Contest 2014115599

1786Sandro's BiographyUral Regional School Programming Contest 20102394100

1118Nontrivial NumbersAutumn School Contest 20013995102

1136ParliamentNEERC 2001 Central Subregional3984102

1214Strange ProcedureAutumn School Contest 20024026103

1020RopeAutumn School Contest 200012011104

1296HyperjumpSpring School Contest 20044074104

2010Sasha the Young GrandmasterUral Regional School Programming Contest 20131371104

1014Product of DigitsUSU Local Contest. 199911974105

1228ArrayNEERC 2002 Central Subregional3946105

2018The Debut AlbumNEERC 2014 Eastern Subregional1085106

1330IntervalsAutumn School Contest 20043989107

1573AlchemyAutumn School Contest 20073206109

1126Magnetic StormsUSU Championship 20013697110

1777AnindilyakwaUral SU Championship 20102174110

1192Ball in a DreamSpring School Contest 20023635112

1079MaximumWinter Mathematical Festival Varna 20019826113

1353Milliard Vasya's FunctionSpring School Contest 20053740115

1082Gaby IvanushkaSpring School Contest 20019521116

1086CryptographySpring School Contest 20019494116

1226esreveR redrONEERC 2002 Central Subregional3575116

1582BookmakersNEERC 2007 Eastern Subregional2957117

1044Lucky Tickets. Easy!USU Championship 200010440118

1219Symbolic SequenceUSU Championship 20023477119

1260Nudnik PhotographerAutumn School Contest 20033499120

1123SalaryAutumn School Contest 20013296123

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023337123

1711Code NamesNEERC 2009 Eastern Subregional2232123

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional929124

1283DwarfUSU Personal Contest 20043347126

1336Problem of Ben BetsalelAutumn School Contest 20043384126

1688Team.GOV!USU Personal Contest 20092285129

2000Grand Theft Array VUral Regional School Programming Contest 20131098129

1683FridgeUSU Personal Contest 20092283130

1982Electrification PlanUral FU Championship 20131105130

2102Michael and CryptographyUral FU Junior Championship 2016424132

1352Mersenne PrimesSpring School Contest 20053209134

1725Sold Out!Ural Regional School Programming Contest 20092043134

1868Prediction ContestUral FU Championship 20111528135

1022Genealogical TreeAutumn School Contest 20009210136

1402CocktailsAutumn School Contest 20053119138

1021Sacrament of the SumAutumn School Contest 20008948140

1222Chernobyl’ EaglesUSU Championship 20022936141

1964Chinese DialectsUral FU Personal Contest 20131079142

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101672143

1740Deer is Better!USU Championship 20091889144

1612Tram ForumUral Championship 20082271145

1931Excellent TeamUral FU Championship 20121185145

1026Questions and AnswersAutumn School Contest 20008572146

1178Akbardin’s RoadsUSU Personal Contest 20022788146

1576Telephone TariffsAutumn School Contest 20072382146

1142RelationsDSAP Vietnam Online Contest November 20012767147

1084Goat in the GardenSpring School Contest 20017473148

1167Bicolored HorsesRomanian Online Contest December 20012758148

1572Yekaterinozavodsk Great WellAutumn School Contest 20072315150

1864Get-Together at Den'sUral FU Championship 20111369150

1821BiathlonUSU Personal Contest 20111487151

2069Hard RockUral Regional School Programming Contest 2015561153

1210Kind SpiritsAutumn School Contest 20022683154

1984Dummy GuyUral FU Championship 2013928155

2073Log FilesUral Regional School Programming Contest 2015552155

1073Square CountryUSU Personal Contest 20017188156

1306Sequence MedianUral Championship 19982706156

1709Penguin-AviaUral Championship 20091854158

1295Crazy NotionsSpring School Contest 20042655159

1017StaircasesUSU Local Contest. 19997849160

1280Topological SortingNEERC 2003 Central Subregional2628160

1354Palindrome. Again PalindromeSpring School Contest 20052691160

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional892160

1756One and a Half DiggersUSU Personal Contest 20101608161

1586Threeprime NumbersNEERC 2007 Eastern Subregional2124163

1613For Fans of StatisticsUral Championship 20082024163

1135RecruitsNEERC 2001 Central Subregional2467164

1272Non-Yekaterinburg SubwayUSU Championship 20032568164

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1830164

1506Columns of NumbersNEERC 2006 Eastern Subregional2341165

1157Young TilerUral Championship 2001. Round 22453166

1213Cockroaches!Autumn School Contest 20022422170

1846GCD 2010Petrozavodsk Summer 2010. USU Contest1227170

1874Football GoalUral Regional School Programming Contest 20111205170

2091Natural SelectionUral FU Personal Contest 2014384170

1878Rubinchik's CubeUral Regional School Programming Contest 20111189172

1012K-based Numbers. Version 27235173

1640Circle of WinterAutumn School Contest 20081766174

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional999174

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101362175

1335White ThesisAutumn School Contest 20042400178

1413Mars JumperUSU Championship 20052417178

1685OrthographyUSU Personal Contest 20091657178

1193Queue at the ExamSpring School Contest 20022277179

1102Strange DialogTetrahedron Team Online Contest May 20012229180

1134CardsNEERC 2001 Central Subregional2250180

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091515180

1800Murphy's LawNEERC 2010 Eastern Subregional1315180

1152False MirrorsUral Championship 2001. Round 22242181

1207Median on the PlaneUSU Local Contest. March 20022258181

1930Ivan's CarUral Regional School Programming Contest 2012957181

1769Old Ural LegendUral Championship 20101407182

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional943184

1944Record of the Attack at the OrbitUral FU Personal Contest 2012909184

1048Superlong SumsUSU Local Contest. March 20006587185

1133Fibonacci SequenceNEERC 2001 Central Subregional2189185

1789Searching for the DodecahedronUral Regional School Programming Contest 20101286185

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015458187

1114BoxesBulgarian Online Contest September 20012141189

2105Alice and Bob are on BikesUral FU Junior Championship 2016292189

1645Ski RaceAutumn School Contest 20081624190

1423String TaleTimus Top Coders: First Challenge2176191

1208Legendary Teams ContestUSU Local Contest. March 20022114193

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1591193

1494MonobilliardsAutumn School Contest 20062000194

1869New Year CruiseUral FU Championship 20111057194

1164FillwordNEERC 2001 Northern Subregional2088195

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional585195

1112CoverBulgarian Online Contest September 20012022200

1138Integer PercentageNEERC 2001 Central Subregional2032200

1348Goat in the Garden 2Spring School Contest 20052142200

2070Interesting NumbersUral Regional School Programming Contest 2015426200

2095ScrumUral FU Personal Contest 2014325200

1680The First NonqualifyingUSU Personal Contest 20091466201

1885Passenger ComfortNEERC 2011 Eastern Subregional1017201

1023ButtonsAutumn School Contest 20006180202

1987Nested SegmentsUral FU Championship 2013707202

2065Different SumsUral Regional School Programming Contest 2015423202

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional537212

2098Lada PrioraUral FU Personal Contest 2014307212

1002Phone NumbersCentral European Olympiad in Informatics 19995894213

1635Mnemonics and PalindromesUSU Championship 20081454213

1183Brackets SequenceNEERC 20011906214

1490Fire CircleAutumn School Contest 20061812214

1249Ancient NecropolisUSU Local Contest. March 20031936215

1515CashmasterTimus Top Coders: Third Challenge1738219

1491Unreal StoryAutumn School Contest 20061752221

1052Rabbit HuntUSU Local Contest. March 20005501222

1242WerewolfUSU Personal Contest 20031859223

1333Genie Bomber 2Autumn School Contest 20041902224

1737Mnemonics and Palindromes 3USU Championship 20091192227

1795Husband in a ShopUral Regional School Programming Contest 20101046227

1011ConductorsUSU Championship 19975510228

1125HopscotchUSU Championship 20011778228

1204IdempotentsUSU Local Contest. March 20021773230

1033LabyrinthUral Championship 19995406231

1303Minimal CoverageUral Championship 19981818232

1355Bald Spot RevisitedSpring School Contest 20051842233

1049Brave BalloonistsUSU Local Contest. March 20005173236

1122GameAutumn School Contest 20011708237

2024Adventure TimeUral Regional School Programming Contest 2014476237

1590Bacon’s CipherNEERC 2007 Eastern Subregional1449238

1150Page NumbersUral Championship 2001. Round 21699239

1205By the Underground or by Foot?USU Local Contest. March 20021708239

1013K-based Numbers. Version 3484241

2067Friends and BerriesUral Regional School Programming Contest 2015352241

1191Catch the thief!Spring School Contest 20021683242

1247Check a SequenceUSU Personal Contest 20031704244

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1755245

1108HeritageBulgarian Online Contest September 20011636247

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1576247

1200Horns and HoofsUSU Local Contest. March 20021638249

1603EruditeUSU Personal Contest 20081332249

1889Airport AnnouncementsNEERC 2011 Eastern Subregional811251

1113JeepBulgarian Online Contest September 20011598253

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014380254

1109ConferenceBulgarian Online Contest September 20011593254

1826MinefieldUSU Personal Contest 2011882254

1922Superhero TeamUral Regional School Programming Contest 2012679254

1433DiamondsUSU Personal Contest 20061625255

1658Sum of DigitsNEERC 2008 Eastern Subregional1202255

1080Map ColoringWinter Mathematical Festival Varna 20014339256

1298KnightSpring School Contest 20041647256

1195Ouths and CrossesSpring School Contest 20021569260

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1432260

1010Discrete FunctionUSTU PhysTech Cup 20004792262

1718RejudgeNEERC 2009 Eastern Subregional1030265

1684Jack's Last WordUSU Personal Contest 20091106266

1726VisitsUral Regional School Programming Contest 20091023266

1028StarsUral Championship 19994661268

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031546268

2003Simple MagicUral Regional School Programming Contest 2013523269

1087The Time to Take StonesSpring School Contest 20014062271

1244GentlemenUSU Personal Contest 20031533271

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest968271

2034CaravansUral Regional School Programming Contest 2014412273

1117HierarchyAutumn School Contest 20011476274

1741Communication FiendUSU Championship 2009985274

1998The old PadawanNEERC 2013 Eastern Subregional515275

1779The Great TeamUral SU Championship 2010860277

1179Numbers in TextUSU Personal Contest 20021465278

1211Collective GuaranteeAutumn School Contest 20021484278

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1398278

1220StacksUSU Championship 20021472280

1537EntsUSU Personal Contest 20071323280

1823Ideal GasUSU Personal Contest 2011795281

1501Sense of BeautyNEERC 2006 Eastern Subregional1367282

1047Simple CalculationsUSU Local Contest. March 20004289285

2104Game with a StripUral FU Junior Championship 2016189287

1018Binary Apple TreeUSU Local Contest. 19994314290

1032Find a MultipleUral Championship 19993720292

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012587293

1024PermutationsAutumn School Contest 20004235295

1184Cable MasterNEERC 20011378295

1377Lara CroftUral Championship 2005. Round 11457295

1497Cutting a SquareAutumn School Contest 20061305296

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest885296

1981Parallel and PerpendicularUral FU Championship 2013478297

1036Lucky Tickets4175299

1753BookshelfUSU Personal Contest 2010861299

2021Scarily interesting!NEERC 2014 Eastern Subregional378299

1551Sumo TournamentUral Championship 20071213301

1053PinocchioNEERC 2000 Central Subregional4018303

1521War Games 2Timus Top Coders: Third Challenge1253303

1933Guns for Battle!Ural FU Championship 2012558305

1934Black SpotUral FU Championship 2012558305

1215Exactness of Projectile HitAutumn School Contest 20021337308

1137Bus RoutesNEERC 2001 Central Subregional1309309

1124MosaicUSU Championship 20011303310

1127Colored BricksUSU Championship 20011303310

1153SupercomputerUral Championship 2001. Round 21296312

1190Bar of ChocolateSpring School Contest 20021302312

2108Oleg and Little PoniesUral FU Junior Championship 2016173312

1116Piecewise Constant FunctionAutumn School Contest 20011286314

1989SubpalindromesUral FU Championship 2013452314

1227Rally ChampionshipNEERC 2002 Central Subregional1305316

1294Mars SatellitesSpring School Contest 20041329317

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional741318

1992CVSNEERC 2013 Eastern Subregional444318

1450Russian PipelinesTimus Top Coders: Second Challenge1274319

1517Freedom of ChoiceTimus Top Coders: Third Challenge1178322

1588JamaicaNEERC 2007 Eastern Subregional1068323

1320Graph DecompositionUral Championship 2004. Round 21304324

1604Country of FoolsUSU Personal Contest 20081023324

1160NetworkNEERC 2001 Northern Subregional1261327

1302Delta-waveUral Championship 19981291327

1185WallNEERC 20011240328

1793Tray 2Ural Regional School Programming Contest 2010722328

1121BranchesAutumn School Contest 20011226329

1008Image EncodingUSTU PhysTech Cup 20003796331

1346Intervals of MonotonicityUSU Championship 20041292331

1941Scary Martian WordUral FU Personal Contest 2012498332

1029MinistryUral Championship 19993266333

1218Episode N-th: The Jedi TournamentUSU Championship 20021227335

1406Next NumberAutumn School Contest 20051273337

1223Chernobyl’ Eagle on a RoofUSU Championship 20021216338

2046The First Day at SchoolUral Championship 2015286338

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest862339

2062Ambitious ExperimentUral Regional School Programming Contest 2015247340

1156Two RoundsUral Championship 2001. Round 21187341

2063Black and WhiteUral Regional School Programming Contest 2015246341

1201Which Day Is It?USU Local Contest. March 20021190342

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest1077345

1060Flip GameNEERC 20003335346

1651Shortest SubchainNEERC 2008 Eastern Subregional883346

1904The Lessons of the PastUral Championship 2012498346

1648YachtsAutumn School Contest 2008884347

1246Tethered DogUSU Personal Contest 20031183350

1282Game TreeNEERC 2003 Central Subregional1197350

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014319350

1261TipsAutumn School Contest 20031185353

1431DiplomasUSU Personal Contest 20061172353

1090In the Army NowUSU Local Contest. March 20012946355

1031Railway TicketsUral Championship 19993497356

1495One-two, One-two 2Autumn School Contest 20061083357

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest732357

1140Swamp IncidentNEERC 2001 Central Subregional1114362

1483Table FootballUSU Championship 20061066363

1262Pseudo-Roman NumberAutumn School Contest 20031149364

1292Mars Space StationsSpring School Contest 20041155365

1356Something EasierSpring School Contest 20051167366

1574Mathematicians and bracketsAutumn School Contest 2007942367

1007Code WordsUSU Championship 19973412368

2078Bowling gameUral Championship 2016179369

1403CourierAutumn School Contest 20051160370

1078SegmentsWinter Mathematical Festival Varna 20012992371

1141RSA Attack1088371

1176HyperchannelsUSU Personal Contest 20021095371

1828Approximation by a ProgressionUSU Personal Contest 2011591376

1039Anniversary PartyUSU Championship 20003250380

1055CombinationsNEERC 2000 Central Subregional3193381

1854Negotiations with ParthiansPetrozavodsk Summer 2011. Ural SU Team.GOV Contest539381

1901Space ElevatorsUral Championship 2012451381

1003ParityCentral European Olympiad in Informatics 19993276383

1279WarehouseNEERC 2003 Central Subregional1087385

1259How to Become Star?Autumn School Contest 20031079387

1287Mars CanalsUSU Personal Contest 20041086387

1427SMSTimus Top Coders: First Challenge1072387

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional363387

2047MathsUral Championship 2015249387

1229Strong BrickworkNEERC 2002 Central Subregional1061388

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional518390

2026Dean and ScheduleUral Regional School Programming Contest 2014284391

1289One Way TicketUSU Personal Contest 20041071393

1759Long-LiversUSU Personal Contest 2010652393

1783Nuclear Arms RaceUral SU Championship 2010603393

1407One-two, One-twoAutumn School Contest 20051088394

1489Points on a ParallelepipedAutumn School Contest 2006977395

1343Fairy TaleUSU Championship 20041074397

2109Tourism on MarsUral FU Junior Championship 2016134397

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional282398

1111SquaresBulgarian Online Contest September 20011009399

1115ShipsBulgarian Online Contest September 20011008399

1562GM-pineappleUSU Championship 2007864400

2030Awesome Backup SystemUral Regional School Programming Contest 2014278400

1217Unlucky TicketsUSU Championship 20021025401

1350CanteenSpring School Contest 20051058403

1963KiteUral FU Personal Contest 2013372405

1077Travelling Tours992406

1513Lemon TaleTimus Top Coders: Third Challenge931406

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest738407

1015Test the Difference!USU Local Contest. 19993064408

1631Drunk King 2USU Championship 2008752408

1860FiborialPetrozavodsk Summer 2011. Ural SU Team.GOV Contest501409

1923Scary PoliticsUral Regional School Programming Contest 2012417409

1107Warehouse ProblemTetrahedron Team Online Contest May 2001971412

1221Malevich Strikes Back!USU Championship 2002998412

1291Gear-wheelsSpring School Contest 20041020412

1995Illegal spicesNEERC 2013 Eastern Subregional340412

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001974414

1252Sorting the TombstonesUSU Local Contest. March 2003996415

1094E-screenUSU Local Contest. March 20012514416

1732Ministry of TruthUSU Championship 2009646416

1602ElevatorUSU Personal Contest 2008790418

1128Partition into GroupsUSU Championship 2001962419

1774Barber of the Army of MagesUral SU Championship 2010565419

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest261419

1507Difficult DecisionNEERC 2006 Eastern Subregional911421

2099Space InvaderUral FU Personal Contest 2014149422

1571InterpretersUSU Championship 2007817423

1038Spell CheckerUSU Championship 20002863431

1480CouponsUSU Championship 2006895431

1519Formula 1Timus Top Coders: Third Challenge877431

1700AwakeningUral Championship 2009671431

1873GOV ChroniclesUral Regional School Programming Contest 2011470431

1181Cutting a Painted PolygonUSU Personal Contest 2002936433

1416ConfidentialUSU Championship 2005987433

1258PoolAutumn School Contest 2003963434

1410CrackUSU Championship 2005984434

1776Anniversary FireworkUral SU Championship 2010545434

2081Faulty dialUral Championship 2016150436

1019Line PaintingUSU Local Contest. 19992856438

1089Verification with a VocabularySpring School Contest 20012507439

1202Rectangles TravelUSU Local Contest. March 2002925439

2071Juice CocktailsUral Regional School Programming Contest 2015189439

1129Door PaintingUSU Championship 2001907444

1900Brainwashing DeviceUral Championship 2012386444

1641DutiesAutumn School Contest 2008677451

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection333453

1238FoldingNEERC 2002906454

1155TroubleduonsUral Championship 2001. Round 2886455

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014243455

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest761456

1890Money out of Thin AirNEERC 2011 Eastern Subregional442456

1643Attack of the Dark FortressAutumn School Contest 2008668457

1942Attack at the OrbitUral FU Personal Contest 2012359457

1326Bottle TapsUral Championship 2004. Round 2906464

1316Electronic AuctionUral Championship 2004. Round 1901467

1628White StreaksUSU Championship 2008656467

1162Currency ExchangeNEERC 2001 Northern Subregional863468

1051Simple Game on a GridUSU Local Contest. March 20002585471

1535The Hobbit or There and Back AgainUSU Personal Contest 2007783471

1401GamersAutumn School Contest 2005908472

1728Curse on Team.GOVUral Regional School Programming Contest 2009568475

1189Pairs of IntegersNEERC 2001851476

1329Galactic HistoryAutumn School Contest 2004891476

1072RoutingUSU Personal Contest 20012348477

1430Crime and PunishmentTimus Top Coders: First Challenge867477

1273TieUSU Championship 2003871479

1577E-mailAutumn School Contest 2007714482

1428Jedi RiddleTimus Top Coders: First Challenge856483

1322SpyUral Championship 2004. Round 2868484

1091Tmutarakan ExamsUSU Local Contest. March 20012147486

1525PathPetrozavodsk Winter 2007. D.Gozman Contest760487

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional479489

1103Pencils and CirclesTetrahedron Team Online Contest May 2001814490

1236Decoding TaskNEERC 2002838490

1439Battle with You-Know-WhoUral Championship 2006823496

1579Coat TransportationAutumn School Contest 2007688500

1414Astronomical DatabaseUSU Championship 2005851501

1212BattleshipAutumn School Contest 2002814503

1095Nikifor 3USU Local Contest. March 20012066505

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional337505

1182Team Them Up!NEERC 2001798507

1158Censored!NEERC 2001 Northern Subregional793508


1971Graphics SettingsUral Championship 2013287509

1045Funny GameUSU Local Contest. March 20002348519

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional519520

1884Way to the UniversityUral Regional School Programming Contest 2011387521

1056Computer NetNEERC 2000 Central Subregional2331522

1066GarlandNEERC 20002207522

1314Chase in SubwayUral Championship 2004. Round 1804522

1362Classmates 2Ural Championship 2005. Round 2813524

1871Seismic WavesUral FU Championship 2011386524

1069Prufer CodeUSU Personal Contest 20012134525

1870Zinium 2Ural FU Championship 2011385525

1334CheckersAutumn School Contest 2004801528

1366PresentsUral Championship 2005. Round 2804530

1600AirportUSU Personal Contest 2008620531

1650BillionairesNEERC 2008 Eastern Subregional572531

1729Dead Man's ChestUral Regional School Programming Contest 2009504534

1980Road to InvestorUral Championship 2013273534

1437Gasoline StationUSU Personal Contest 2006768536

1465Pawn GamePetrozavodsk Winter 2006. USU Contest730536

1891Language OceanNEERC 2011 Eastern Subregional374537

1400Cellular CharactersAutumn School Contest 2005785545

1754Explosion in a PyramidUSU Personal Contest 2010468545

2080WalletUral Championship 2016118545

1101Robot in the FieldTetrahedron Team Online Contest May 2001728547

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005773550

1143Electric PathDSAP Vietnam Online Contest November 2001730551

1004Sightseeing TripCentral European Olympiad in Informatics 19992269553

1534Football in GondorUSU Personal Contest 2007663555

2004Scientists from SpilkovoUral Regional School Programming Contest 2013248555

2064CaterpillarsUral Regional School Programming Contest 2015147556

1605Devil's SequenceUSU Personal Contest 2008589558

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014196559

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014195561

1421Credit OperationsTimus Top Coders: First Challenge735562

1027D++ AgainAutumn School Contest 20002214563

1448Lighting in HogwartsUral Championship 2006722565

1172Ship RoutesRomanian Online Contest December 2001712566

2074Timus problems classifierQualification of eastern subregional contest 2015127567

1682Crazy ProfessorUSU Personal Contest 2009513568

1375Bill CleversUral Championship 2005. Round 1750570

2048HistoryUral Championship 2015165572

1085MeetingSpring School Contest 20011912574

1698Square Country 5Petrozavodsk Winter 2009. USU Contest504575

1710Boris, You Are Wrong!Ural Championship 2009498578

2106DeserializationUral FU Junior Championship 201689578

1067Disk TreeNEERC 20001983580

1966Cycling RoadsUral FU Personal Contest 2013257580

2009Canteen LineUral Regional School Programming Contest 2013237580

1760Infernal WorkUSU Personal Contest 2010438581

1071Nikifor 2USU Personal Contest 20011923582

1550Dean's Pyramid 3Ural Championship 2007623582

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest185582

1064Binary SearchNEERC 20001977583

1325DirtUral Championship 2004. Round 2720583

1713Key SubstringsNEERC 2009 Eastern Subregional461584

1592Chinese WatchesNEERC 2007 Eastern Subregional583586

1061Buffer ManagerNEERC 20001959588

1806Mobile TelegraphsNEERC 2010 Eastern Subregional396588

1928Another Ecology ProblemUral Regional School Programming Contest 2012287588

1358CablesSpring School Contest 2005722589

2060Subpalindrome pairsPalindromic Contest 151589


1962In Chinese RestaurantUral FU Personal Contest 2013250595

1445Christmas giftsUral Championship 2006683596

1803The Czechs' RiflesNEERC 2010 Eastern Subregional390597

1659Regular TrianglesNEERC 2008 Eastern Subregional507598

2092BoleroUral FU Personal Contest 2014102599

1822Hugo II's WarUSU Personal Contest 2011366601

2089Experienced coachUral Championship 2016106601

1059ExpressionNEERC 2000 Central Subregional2020602

1070Local TimeUSU Personal Contest 20011858602

1706Cipher Message 2Ural Championship 2009476604

1838Samurai's StrokeUral Championship 2011358604

1690Army of MagesPetrozavodsk Winter 2009. USU Contest475610

1309DisputeUral Championship 2004. Round 1686611

1701Ostap and PartnersUral Championship 2009468614

1939First SealUral FU Championship 2012271617

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest558619

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional177621

1371Cargo AgencyUral Championship 2005. Round 1686622

1332Genie BomberAutumn School Contest 2004673627

1767The House of Doctor DeeUral Championship 2010400629

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest491632

1054Hanoi TowerNEERC 2000 Central Subregional1917634

1452Pascal vs. C++Timus Top Coders: Second Challenge627644


1724Origin of Man ClarifiedUral Regional School Programming Contest 2009415646

1866Poetic FootUral FU Championship 2011311646

1248Sequence SumUSU Personal Contest 2003635647

1254Die HardUSU Local Contest. March 2003633650

1542AutocompletionUral Championship 2007557650

1861Graveyard in DeyjaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest309656

1234BricksNEERC 2002622658

1253NecrologuesUSU Local Contest. March 2003624659

1500Pass LicensesNEERC 2006 Eastern Subregional579659

1892Morning in KoltsovoNEERC 2011 Eastern Subregional303659

1174Weird PermutationsRomanian Online Contest December 2001609660

1564Counting OnesUSU Championship 2007519662

1606SlalomUSU Personal Contest 2008495662

1990PodracingNEERC 2013 Eastern Subregional208662

1132Square Root604664

1961Cantonese DialectUral FU Personal Contest 2013223664

1186Chemical ReactionsNEERC 2001605666

1096Get the Right Route Plate!USU Local Contest. March 20011562667

1903Unidentified ShipsUral Championship 2012252671

1443RailsUral Championship 2006601676

1286Starship TravelUSU Personal Contest 2004617677

1088Ilya MurometzSpring School Contest 20011607683

1943Space RummyUral FU Personal Contest 2012237683

1274Fractional ArithmeticNEERC 2003 Central Subregional607685

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest566689

1772Ski-Trails for RobotsUral Championship 2010363691

1633HippogriffsUSU Championship 2008439693

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional242696

1168Radio StationsRomanian Online Contest December 2001576697

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest610698

1440Training ScheduleUral Championship 2006582698

1057Amount of DegreesNEERC 2000 Central Subregional1736699

1940Not So Simple YearsUral FU Championship 2012238700

1755CakeUSU Personal Contest 2010361702

1484Film RatingUSU Championship 2006544705

1611DecimationUral Championship 2008460705

2008SwiftyUral Regional School Programming Contest 2013193705

1250Sea BurialUSU Local Contest. March 2003580708

1305Convex HullUral Championship 1998590708

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest543709

1230Introspective ProgramNEERC 2002 Central Subregional572713

1159FenceNEERC 2001 Northern Subregional562714

1872Spacious OfficeUral FU Championship 2011280715

1301Cube in LabyrinthUral Championship 1998581719

1169PairsRomanian Online Contest December 2001557720

1773Metro to Every HomeUral Championship 2010345726

1716Alternative SolutionNEERC 2009 Eastern Subregional368728

1629TripUSU Championship 2008417729

1932The Secret of IdentifierUral FU Championship 2012228729

1994The Emperor's planNEERC 2013 Eastern Subregional188729

1034Queens in Peaceful PositionsUral Championship 19991694733

1405Goat in the Garden 5Autumn School Contest 2005579735

1825Ifrit Bomber 2USU Personal Contest 2011297737

1037Memory ManagementUSU Championship 20001665739

1830Help in the RNOSUral Championship 2011291739

1780Gray CodeUral SU Championship 2010315741

1775Space BowlingUral SU Championship 2010314743

2110Remove or MaximizeUral FU Junior Championship 201667743

1832Arirang ShowUral Championship 2011288746

1593Square Country. Version 2388753

1016Cube on the WalkUSU Local Contest. 19991651755

1614National Project “Trams”Ural Championship 2008429755

1235Cricket FieldNEERC 2002539757

1424MinibusTimus Top Coders: First Challenge542758

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection194761

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012219763

1392Dreaming of Stars552770

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional217772

1379Cups TransportationUral Championship 2005. Round 1549774

1647Divide an Island!Autumn School Contest 2008389776

1512ZiniumTimus Top Coders: Third Challenge479782

1646Godzilla Strikes Back!Autumn School Contest 2008385784

1875Angry BirdsUral Regional School Programming Contest 2011253786

1974Similar TunesUral Championship 2013182788

1276TrainNEERC 2003 Central Subregional523792

1986Paul’s SaladsUral FU Championship 2013173792

1042Central HeatingUSU Championship 20001547795

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest432795

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional290796

1456Jedi Riddle 2Timus Top Coders: Second Challenge504798

1587Flying PigNEERC 2007 Eastern Subregional425799

1268Little ChuUSU Championship 2003516802

1689Fisherman and BarbellUSU Personal Contest 2009360803

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest131804

1105Observers ColoringTetrahedron Team Online Contest May 2001491806

1277Cops and ThievesNEERC 2003 Central Subregional510812

1323ClassmatesUral Championship 2004. Round 2514812

1030TitanicUral Championship 19991527813

1269Obscene Words FilterUSU Championship 2003509813

1147Shaping RegionsDSAP Vietnam Online Contest November 2001486822

1486Equal SquaresUSU Championship 2006465822

1547Password SearchUral Championship 2007438822

1738Computer SecurityUSU Championship 2009321825

1988Planet Ocean LandingUral FU Championship 2013165828

2103Corporate MailUral FU Junior Championship 201659829

1705Gangster HaresUral Championship 2009344830

1996Cipher Message 3NEERC 2013 Eastern Subregional164830

1720Summit Online JudgeNEERC 2009 Eastern Subregional321831

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest461832

1342EnterpriseUSU Championship 2004504837

1436BillboardUSU Personal Contest 2006487839

1165SubnumberNEERC 2001 Northern Subregional471849

1373Pictura ex MachinaUral Championship 2005. Round 1500849

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest454855

1927Herbs and MagicUral Regional School Programming Contest 2012193860

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest424865

1715Another Ball KillerNEERC 2009 Eastern Subregional306871

1578Mammoth HuntAutumn School Contest 2007390873

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest254873

1154Mages ContestUral Championship 2001. Round 2457874

1498Stroke at Full SpeedAutumn School Contest 2006436874

1006Square FramesUSU Championship 19971420880

1936RoshamboUral FU Championship 2012185890

2052Physical EducationUral Championship 2015102894

2093All Roads Lead to SnowdriftUral FU Personal Contest 201465895

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest286896

1824Ifrit BomberUSU Personal Contest 2011242897

1905Travel in TimeUral Championship 2012186897

1580Dean's DebtsAutumn School Contest 2007379898

1324Extra SpacesUral Championship 2004. Round 2463899

1630TalismanUSU Championship 2008336899

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest319899

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest285899

1970皇后像廣場Ural FU Personal Contest 2013161905

1237Evacuation PlanNEERC 2002449907

2017Best of a bad lotNEERC 2014 Eastern Subregional118908

1233Amusing NumbersNEERC 2002447910

1608Lucky Tickets 2008Ural Championship 2008354910

1245PicturesUSU Personal Contest 2003448911

1175Strange SequenceUSU Personal Contest 2002438914

1965Pear TreesUral FU Personal Contest 2013159916

1422FirefliesTimus Top Coders: First Challenge444922

1575Yekaterinburg Subway 2Autumn School Contest 2007366929

1364LaraKillerUral Championship 2005. Round 2454930

1285Thread in a HyperspaceUSU Personal Contest 2004446931

1948The Robot on the LineUral FU Personal Contest 2012171932

1921Chaos and OrderUral Regional School Programming Contest 2012176939

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest327940

1761Binary PalindromeUSU Personal Contest 2010267940

1278“… Connecting People”NEERC 2003 Central Subregional435949

1339BabiesUSU Championship 2004443950

1398Bishop and Pawn391950

1591Abstract ThinkingNEERC 2007 Eastern Subregional352961

1949The Best Picture in the GalaxyUral FU Personal Contest 2012164970

1827Indigenous WarsUSU Personal Contest 2011223971

1836Babel FishUral Championship 2011219971

1730ManBearPigUral Regional School Programming Contest 2009272973

1451Beerhouse TaleTimus Top Coders: Second Challenge411974

1569Networking the “Iset”USU Championship 2007349975

1040Airline CompanyUSU Championship 20001259976

1418Military StoryUSU Championship 2005432976

1863Peaceful AtomUral FU Championship 2011202978

1130Nikifor's WalkUSU Championship 2001406979

1937Davy Jones’s OrganUral FU Championship 2012167980

1435Financial ErrorUSU Personal Contest 2006414983

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest347985

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest296987

1784RoundersUral SU Championship 2010233991

1331VladislavaAutumn School Contest 2004421994

1907Coffee and BunsUral Championship 2012166999

1976Game OptimizationUral Championship 20131411002

1883Ent's BirthdayUral Regional School Programming Contest 20111941014

1539Intelligence DataUSU Personal Contest 20073561021

1857Alice and BandersnatchPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1951021

1979Resources DistributionUral Championship 20131381022

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Dandelion Contest1011022

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3781023

1887Frequent Flyer CardNEERC 2011 Eastern Subregional1911026

1173Lazy SnailRomanian Online Contest December 20013831039

1570Eating HighUSU Championship 20073271039

1768Circular StringsUral Championship 20102371043

1075Thread in a SpaceUSU Personal Contest 200110671045

1518Jedi Riddle 3Timus Top Coders: Third Challenge3551048

2055Urban GeographyUral Championship 2015851055

1444ElephpotamusUral Championship 20063791062

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2681064

1151RadiobeaconsUral Championship 2001. Round 23731066

1627JoinPetrozavodsk Winter 2008. ITMO Contest2861070

1434Buses in VasyukiUSU Personal Contest 20063781074

1983Nectar GatheringUral FU Championship 20131241082

2097Snowboarding on SpilnayaUral FU Personal Contest 2014521082

1341DeviceUSU Championship 20043861087

1687Numismatics for FunUSU Personal Contest 20092631088

1317HailUral Championship 2004. Round 23801090

1595Perfect Sequence2541090

1862Very Wealthy MoleUral FU Championship 20111801091

1791Uncle Styopa and BusesUral Regional School Programming Contest 20102101092

1447Portkey NetworkUral Championship 20063681093

1790Searching for the TruthUral Regional School Programming Contest 20102091097

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2301105

1722Observation DeckUral Regional School Programming Contest 20092381107

1879GOV-internship 2Ural Regional School Programming Contest 20111751118

1540Battle for the RingUSU Personal Contest 20073221126

1511Fiscal OperationsTimus Top Coders: Third Challenge3261138

1968Glass PyramidUral FU Personal Contest 20131261138

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3311149

1533Fat HobbitsUSU Personal Contest 20073151150

1736Chinese HockeyUSU Championship 20092261157

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3631161

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1701162

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2511165

2107Oppa Funcan StyleUral FU Junior Championship 2016391167

1408Polynomial MultiplicationAutumn School Contest 20053591173

1458War GamesTimus Top Coders: Second Challenge3391175

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2831187

1544Classmates 3Ural Championship 20073001188

1896War Games 2.1511190

2101Knight's ShieldUral FU Junior Championship 2016381191

1453QueenTimus Top Coders: Second Challenge3331196

1357Teakettle 1.0 for DummiesSpring School Contest 20053501197

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest3161202

1393Average Common Prefix3431213

1359ConstructionSpring School Contest 20053431221

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest3151221

1310ACM DiagnosticsUral Championship 2004. Round 13381222

1538Towers of GuardUSU Personal Contest 20072961222

1099Work Scheduling7661224

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1781226

1307ArchiverUral Championship 2004. Round 13351233

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest2051233

2007Mutants versus MachinesUral Regional School Programming Contest 20131061235

1546Japanese SortingUral Championship 20072881236

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1591241

2059Not common palindromesPalindromic Contest 661248

1487Chinese FootballUSU Championship 20063011256

1035Cross-stitchUral Championship 19999801259

1669Universal WordPetrozavodsk Winter 2008. USU Contest2311262

1807Cartridges for MaximNEERC 2010 Eastern Subregional1791264

1766Humpty DumptyUral Championship 20101931270

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2661274

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2061274

1657Cube SnakeNEERC 2008 Eastern Subregional2321277

1947MeanderUral FU Personal Contest 20121221278

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1271279

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1701281

1171Lost in SpaceRomanian Online Contest December 20013061292

1321Floor IndicatorUral Championship 2004. Round 23191293

1946Chinese Hockey 3Ural FU Personal Contest 20121201298

1686Photovoltaic SpaceshipUSU Personal Contest 20092181303

1985Prime SquareUral FU Championship 20131011306

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2771308

2085Magic ProgrammerUral Championship 2016431316

1360Philosophical DisputeUral Championship 2005. Round 23171319

1177Like ComparisonsUSU Personal Contest 20023001321

1328FireballAutumn School Contest 20043121331

1281River BasinNEERC 2003 Central Subregional3051341

1441From the History of Gringotts BankUral Championship 20062981342

1097Square Country 2USU Local Contest. March 20017711343

1050Preparing an ArticleUSU Local Contest. March 20009001344

1065FrontierNEERC 20008501346

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2661360

1851GOV-internshipPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1431368

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2641370

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1031374

1318LogarithmUral Championship 2004. Round 22991376

1311Stable ConstructionUral Championship 2004. Round 12971385

1419Maps of the Island WorldsUSU Championship 20053011387

1499KerchiefsAutumn School Contest 20062711387

1449Credit Operations 2Timus Top Coders: Second Challenge2851390

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2171396

1240Heroes of Might and MagicNEERC 20022871400

1345HTMLUSU Championship 20042941416

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Dandelion Contest701418

1299PsyloniansSpring School Contest 20042861435

1347BlogSpring School Contest 20052891441

1950Martian FarmlandsUral FU Personal Contest 20121071442

1265MirrorUSU Championship 20032821445

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection971451

1762Search for a Hiding-PlaceUSU Personal Contest 20101691455

1266Kirchhoff's LawUSU Championship 20032791460

1170DesertRomanian Online Contest December 20012691464

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1681489

1412Autumn TideUSU Championship 20052791492

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2521496

1770The Party of Ural ChampionsUral Championship 20101611507

1251Cemetery ManagerUSU Local Contest. March 20032651519

1568Train Car SortingUSU Championship 20072201522

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1471522

1043Cover an ArcUSU Championship 20008031523

1241Inlay CuttersNEERC 20022571559

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2671563

1488ACM PokerUSU Championship 20062381574

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1211574

1565The Duel for ThreeUSU Championship 20072111584

1886Trip 2NEERC 2011 Eastern Subregional1201586

1337BureaucracyAutumn School Contest 20042591593

1802Cube PuzzleNEERC 2010 Eastern Subregional1401593

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1001593

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1791598

2058100500 palidnromesPalindromic Contest 491607

1670AsteriskPetrozavodsk Summer 2008. USU Contest1761624

1485Football and LieUSU Championship 20062301627

1908Brute-force SearchUral Championship 2012981628

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2041643

1508Japanese PuzzleNEERC 2006 Eastern Subregional2251651

1378Artificial IntelligenceUral Championship 2005. Round 12521652

1764TranssibUral Championship 20101461652

20503D-modelingUral Championship 2015501670

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1701678

1257HyphenationAutumn School Contest 20032411681

1583CheeseNEERC 2007 Eastern Subregional1951696

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1671706

1782Jack's New WordUral SU Championship 20101311708

1420Integer-Valued Complex DivisionUSU Championship 20052411718

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest561719

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1241720

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1441721

1338AutomobilesUSU Championship 20042401722

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2201726

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection801726

1062TriathlonNEERC 20006541742

1425Queen 2Timus Top Coders: First Challenge2301744

1707Hypnotoad's SecretUral Championship 20091581748

1516NostalgiaTimus Top Coders: Third Challenge2081755

1046Geometrical DreamsUSU Local Contest. March 20006781778

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012191781

1503PolynomialNEERC 2006 Eastern Subregional2071788

1734Endgame DatabaseUSU Championship 20091421796

1610CactusesUral Championship 20081741801

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1571809

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1971813

1615Tram SolitaireUral Championship 20081721821

1514National ParkTimus Top Coders: Third Challenge1991830

1492Vasya's Dad 2Autumn School Contest 20062021838

1781Clean CodeUral SU Championship 20101211838

1841CablewaysPetrozavodsk Summer 2010. USU Contest1041840

1304ParallelepipedUral Championship 19982191856

1417Space Poker 2USU Championship 20052221859

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1531866

1702CrossroadUral Championship 20091471870

1093DartsUSU Local Contest. March 20015501874

1831Tsyfirkin's LessonUral Championship 20111081884

1148Building TowersDSAP Vietnam Online Contest November 20012061888

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1511889

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest1011890

1163ChapaevNEERC 2001 Northern Subregional2051899

1757Gold BarsUSU Personal Contest 20101271901

1532Lost in TranslationUSU Personal Contest 20071861907

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1291907

1397Points Game1951913

2096All InclusiveUral FU Personal Contest 2014251917

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest991920

1703Robotic ArmUral Championship 20091421932

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest2131942

1455Freedom of SpeechTimus Top Coders: Second Challenge1981972

1216Two Pawns and One KingUSU Championship 20022001976

1267Yekaterinburg SubwayUSU Championship 20032031982

1187Statistical TroubleNEERC 20011961990

1839The MentaculusUral Championship 20111012003

1315MDPAR and MIIARUral Championship 2004. Round 12022006

1396Maximum. Version 21922019

1541ChaseUSU Personal Contest 20071752021

1634Spider MiteUSU Championship 20081442021

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1042022

2075Take care of your eyebrows!Qualification of eastern subregional contest 2015282044

1041NikiforUSU Championship 20005892067

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1902075

1074Very Short ProblemUSU Personal Contest 20015312080

1063Domino PuzzleNEERC 20005452083

1188LibraryNEERC 20011862092

1655Somali PiratesNEERC 2008 Eastern Subregional1372103

1969Hong Kong TramUral FU Personal Contest 2013632120

1288AstrolocationUSU Personal Contest 20041902122

1977Energy WallUral Championship 2013612130

1978E-LiteUral Championship 2013612130

1232Asteroid LandingNEERC 2002 Central Subregional1822162

1543Dance RevolutionUral Championship 20071592180

1504Good MannersNEERC 2006 Eastern Subregional1672192

1549Another Japanese PuzzleUral Championship 20071582193

1867NanotechnologiesUral FU Championship 2011842206

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional692219

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21842223

1256Cemetery GuardUSU Local Contest. March 20031762246

1092TransversalUSU Local Contest. March 20014552256

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest922260

2022Riding a ToadNEERC 2014 Eastern Subregional412278

1284Space PokerUSU Personal Contest 20041742307

2083The Guardian of TraditionsUral Championship 2016202324

1270UnicubeUSU Championship 20031712332

1717Eligibility RulesNEERC 2009 Eastern Subregional1082332

1481Winning ChancesUSU Championship 20061562352

1972Game TestingUral Championship 2013542363

1833Hopes of RowingUral Championship 2011842365

1368Goat in the Garden 3Ural Championship 2005. Round 21722370

1850Space TourismPetrozavodsk Summer 2010. USU Contest782384

1652Banking CrisisNEERC 2008 Eastern Subregional1192396

1895Steaks on BoardNEERC 2011 Eastern Subregional762397

1945Many-armed BrothersUral FU Personal Contest 2012602411

1739FaryuksUSU Championship 20091012460

1882Old NokiaUral Regional School Programming Contest 2011742461

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Dandelion Contest362466

1758Bald Spot Revisited 2USU Personal Contest 2010952481

1835Swamp DoctorUral Championship 2011792498

2053BiologyUral Championship 2015302504

1735Theft of the CenturyUSU Championship 2009982528

1275Knights of the Round TableNEERC 2003 Central Subregional1572529

1454Rectangles 2Timus Top Coders: Second Challenge1502563

2084Technical debtUral Championship 2016172583

1609Tram TileUral Championship 20081182589

1300TaxesUral Championship 19981542591

1829Routing TablesUSU Personal Contest 2011772599

1520Empire Strikes BackTimus Top Coders: Third Challenge1372602

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional952621

2051PhysicsUral Championship 2015282636

1694Killer WordsPetrozavodsk Winter 2009. USU Contest1022641

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1232643

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest772649

1308Dean's PyramidUral Championship 2004. Round 11502658

2090Crossroads of DestinyUral FU Personal Contest 2014152684

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest1022716

1704DemodulationUral Championship 2009982719

1395Pascal vs. C++. Version 21402729

1865The Island of MärketUral FU Championship 2011662729

1798Fire Circle. Version 2242740

1312TrayUral Championship 2004. Round 11452744

1239Ghost BustersNEERC 20021402772

1599Winding Number222782

1859Last Season of Team.GOVPetrozavodsk Summer 2011. Ural SU Team.GOV Contest652790

2006Kirill the GardenerUral Regional School Programming Contest 2013412808

1637Triangle Game 2USU Championship 20081002829

1505Oil TransferNEERC 2006 Eastern Subregional1272833

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1282840

1566Triangular PostcardsUSU Championship 20071132846

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest932871

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection442876

1058ChocolateNEERC 2000 Central Subregional4122887

1464LightPetrozavodsk Winter 2006. USU Contest1272897

2087TrainsUral Championship 2016142905

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional502921

1482Triangle GameUSU Championship 20061212981

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest602997

141140 Islands KnightsUSU Championship 20051333015

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection413045

1367Top SecretUral Championship 2005. Round 21313059

1438Time Limit ExceededUSU Personal Contest 20061263064

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest763083

1681Brother Bear's GardenUSU Personal Contest 2009863095

1442Floo PowderUral Championship 20061233107

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest853113

1856War and PeacePetrozavodsk Summer 2011. Ural SU Team.GOV Contest573123

1466Magic SquarePetrozavodsk Winter 2006. USU Contest1173126

1429BiscuitsTimus Top Coders: First Challenge1233146

2057Non-palidromic cuttingPalindromic Contest 203161

2061OEIS A216264Palindromic Contest 203161

1622EndspielPetrozavodsk Winter 2008. ITMO Contest903168

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest903168

2079Memory leaksUral Championship 2016123170

1975Model of the EarthUral Championship 2013373218

1858Magic CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest553219

1957MundialPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection383236

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest253241

1909Space ReconUral Championship 2012443257

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest603293

1597Chernobyl’ Eagle on a Roof. Version 2263341

1166Funny Card GameNEERC 2001 Northern Subregional1153375

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1173409

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional413437

2049ChemistryUral Championship 2015193454

2086Find DenisUral Championship 2016103487

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest503496

1834Tennis RacketUral Championship 2011533529

1616Square Country 4Ural Championship 2008833563


1509Domino RecognitionNEERC 2006 Eastern Subregional983593

1778Chinese Hockey 2Ural SU Championship 2010573595

2088Nostalgic EveningUral Championship 201693603

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest533659

1938Caribbean TriangleUral FU Championship 2012373691

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection323698

2077ReductionsQualification of eastern subregional contest 2015113699

1765Error 404Ural Championship 2010593735

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest843740

1847ZamkadyePetrozavodsk Summer 2010. USU Contest463746

1632LasersUSU Championship 2008733750

2042NikitaPetrozavodsk Summer 2014. Ural FU Dandelion Contest203781

1733Forgotten TechnologyUSU Championship 2009623792

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest873869

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest913881

1967Programmer CasinoUral FU Personal Contest 2013284072

1598DSA Attack194078

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest964085

1661DodecahedronPetrozavodsk Winter 2008. USU Contest634166

2094Thousand ImpsUral FU Personal Contest 201464194

1460WiresPetrozavodsk Winter 2006. USU Contest824314

2076VasianaQualification of eastern subregional contest 201584315

1973Location GeneratorUral Championship 2013254322

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest604345

1344Gigantic TurnipUSU Championship 2004874438

1594Aztec Treasure544502

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest774505

1999The secret moduleNEERC 2013 Eastern Subregional224511

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Dandelion Contest154537

1271Sailing DirectionsUSU Championship 2003834539

1340CucarachaUSU Championship 2004824679

2054AstronomyUral Championship 2015114769

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest524770

1797Summit Online Judge. Version 2274797

2016Magic and ScienceNEERC 2014 Eastern Subregional144841

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest554874

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest704900

2082PokerUral Championship 201644948

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest544951

1771A Deputy's MorningUral Championship 2010424956

1365Testing CalculatorUral Championship 2005. Round 2774958

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest774977

1801The Revolution CupNEERC 2010 Eastern Subregional384977

1426RectanglesTimus Top Coders: First Challenge735041

1763Expert FleaUral Championship 2010405154

1799Sasha and swag strings75223

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest725280

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest615520

1842Local RootsPetrozavodsk Summer 2010. USU Contest285520

1848Fly HuntPetrozavodsk Summer 2010. USU Contest285520

1372Death StarUral Championship 2005. Round 1685550

1668Death Star 2Petrozavodsk Winter 2008. USU Contest425849

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest295910

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest255977

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest406083

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest426093

1363HalftonesUral Championship 2005. Round 2596252

1906The Lost CivilizationUral Championship 2012186281

1674Drunk KingPetrozavodsk Summer 2008. USU Contest376426

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional376577

1653Death ConveyorNEERC 2008 Eastern Subregional366719

1536Delights of Pipe-weedUSU Personal Contest 2007456797

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest337368

1840Victim of AdvertisingUral Championship 2011207412

1596Knight Mare157783

1432Twofold LuckUSU Personal Contest 2006437863

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest287948

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest308788

1415Mobile LifeUSU Championship 2005388980

1376Dean's Pyramid 2Ural Championship 2005. Round 1389019

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection79133

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1910198

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest3210310

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1910415

1399Economical Director2610571

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2111339

1374MisereUral Championship 2005. Round 12811393

1708Sum of Digits 2Ural Championship 20091511744

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2112105

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313121

1369Cockroach RaceUral Championship 2005. Round 21914874

1548Sakura and StatisticsUral Championship 20071415349

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1616654

1589SokobanNEERC 2007 Eastern Subregional523183

1394Ships. Version 2627064