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Problem set


1000A+B Problem6965018

1001Reverse Root1970618

1785Lost in LocalizationUral Regional School Programming Contest 20101126619

1293EniyaSpring School Contest 20041885221

1409Two GangstersAutumn School Contest 20051809123

1877Bicycle CodesUral Regional School Programming Contest 2011775223

2012About Grisha N.NEERC 2014 Eastern Subregional329125

1820Ural SteaksUSU Personal Contest 2011721527

1787Turn for MEGAUral Regional School Programming Contest 2010715529

1264WorkdaysAutumn School Contest 20031318530

2001Mathematicians and BerriesUral Regional School Programming Contest 2013369630

1197Lonesome KnightSpring School Contest 20021192932

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011549032

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional416434

1639Chocolate 2Autumn School Contest 2008780236

1924Four ImpsUral Regional School Programming Contest 2012383737

1313Some Words about SportUral Championship 2004. Round 1970141

12091, 10, 100, 1000...Autumn School Contest 2002906943

2023Donald is a postmanNEERC 2014 Eastern Subregional190443


1567SMS-spamUSU Championship 2007735844

1319HotelUral Championship 2004. Round 2903745

1581TeamworkAutumn School Contest 2007715145

1225FlagsNEERC 2002 Central Subregional850346

1263ElectionsAutumn School Contest 2003819849

1585PenguinsNEERC 2007 Eastern Subregional653249

1991The battle near the swampNEERC 2013 Eastern Subregional218950

1876Centipede's MorningUral Regional School Programming Contest 2011342051

1100Final StandingsTetrahedron Team Online Contest May 2001726752

1327FusesAutumn School Contest 2004757654

1881Long problem statementUral Regional School Programming Contest 2011326554

1893A380NEERC 2011 Eastern Subregional319355

1243Divorce of the Seven DwarfsUSU Personal Contest 2003700956

1110PowerBulgarian Online Contest September 2001671257

1493One Step from HappinessAutumn School Contest 2006646057

1349FarmSpring School Contest 2005702858

2066Simple ExpressionUral Regional School Programming Contest 201588558

1607TaxiUSU Personal Contest 2008524159

1496SpammerAutumn School Contest 2006599561

1545HieroglyphsUral Championship 2007560861

1925British Scientists Save the WorldUral Regional School Programming Contest 2012231161

1636Penalty TimeUSU Championship 2008450563

1196History ExamSpring School Contest 2002602864

1837Isenbaev's NumberUral Championship 2011300964

1149Sinus Dances586666

2002Test TaskUral Regional School Programming Contest 2013164366

1654Cipher MessageNEERC 2008 Eastern Subregional421567

1563BayanUSU Championship 2007475268

1617Flat SpotsUral Championship 2008448868

1723Sandro's BookUral Regional School Programming Contest 2009363468

2035Another Dress RehearsalUral Regional School Programming Contest 2014116369

1131CopyingUSU Championship 2001544270

1457Heating MainTimus Top Coders: Second Challenge543071

2005Taxi for ProgrammersUral Regional School Programming Contest 2013153171

1025Democracy in DangerAutumn School Contest 20001645272

1224SpiralNEERC 2002 Central Subregional541772

1792Hamming CodeUral Regional School Programming Contest 2010282674

1083Factorials!!!Spring School Contest 20011359076

1935Tears of DrownedUral FU Championship 2012185376

1712Cipher GrilleNEERC 2009 Eastern Subregional321077

2011Long StatementUral Regional School Programming Contest 2013140577

2031Overturned NumbersUral Regional School Programming Contest 2014102178

1502Domino DotsNEERC 2006 Eastern Subregional452080

1139City BlocksNEERC 2001 Central Subregional467582

1194HandshakesSpring School Contest 2002471082

1638BookwormUSU Championship 2008339583

1106Two TeamsTetrahedron Team Online Contest May 2001453984

1290SabotageSpring School Contest 2004477984

1120Sum of Sequential NumbersAutumn School Contest 2001446086

1404Easy to Hack!Autumn School Contest 2005478786

1180Stone GameUSU Personal Contest 2002437088

1119MetroAutumn School Contest 2001428389

1902Neo-VeniceUral Championship 2012159390

1601AntiCAPSUSU Personal Contest 2008332792

2025Line FightingUral Regional School Programming Contest 201486692

1796Amusement ParkUral Regional School Programming Contest 2010224893

1005Stone PileUSU Championship 19971259294

1161StripiesNEERC 2001 Northern Subregional407494

1297PalindromeSpring School Contest 2004425094

1510OrderNEERC 2006 Eastern Subregional388194

16421D MazeAutumn School Contest 2008296595

2033DevicesUral Regional School Programming Contest 201483895

1009K-based NumbersUSU Championship 19971231696

1146Maximum SumDSAP Vietnam Online Contest November 2001399796

1446Sorting HatUral Championship 2006400997

1731DillUral Regional School Programming Contest 2009252297

1786Sandro's BiographyUral Regional School Programming Contest 2010215797

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001388298

1644A Whole Lot of WalnutsAutumn School Contest 2008288798

2068Game of NutsUral Regional School Programming Contest 201551498

2010Sasha the Young GrandmasterUral Regional School Programming Contest 2013109699

1370MagicianUral Championship 2005. Round 24087100

1214Strange ProcedureAutumn School Contest 20023814102

1136ParliamentNEERC 2001 Central Subregional3695104

2056ScholarshipUral Championship 2015612104

1118Nontrivial NumbersAutumn School Contest 20013641105

1203Scientific ConferenceUSU Local Contest. March 20023694105

1228ArrayNEERC 2002 Central Subregional3737105

1020RopeAutumn School Contest 200011097106

1873GOV ChroniclesUral Regional School Programming Contest 20111652106

1777AnindilyakwaUral SU Championship 20101968107

1014Product of DigitsUSU Local Contest. 199910937108

1296HyperjumpSpring School Contest 20043675109

1573AlchemyAutumn School Contest 20072967109

1330IntervalsAutumn School Contest 20043689110

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional715112

1082Gaby IvanushkaSpring School Contest 20019118114

1079MaximumWinter Mathematical Festival Varna 20019079115

1126Magnetic StormsUSU Championship 20013328115

1192Ball in a DreamSpring School Contest 20023368115

1582BookmakersNEERC 2007 Eastern Subregional2764116

1226esreveR redrONEERC 2002 Central Subregional3346117

1044Lucky Tickets. Easy!USU Championship 20009905118

1219Symbolic SequenceUSU Championship 20023259120

1711Code NamesNEERC 2009 Eastern Subregional2054120

2000Grand Theft Array VUral Regional School Programming Contest 2013905120

1086CryptographySpring School Contest 20018525122

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023176122

1353Milliard Vasya's FunctionSpring School Contest 20053302123

2018The Debut AlbumNEERC 2014 Eastern Subregional649124

1123SalaryAutumn School Contest 20013055125

1260Nudnik PhotographerAutumn School Contest 20033107128

1283DwarfUSU Personal Contest 20043125128

1336Problem of Ben BetsalelAutumn School Contest 20043152128

1868Prediction ContestUral FU Championship 20111367128

1683FridgeUSU Personal Contest 20092077129

1688Team.GOV!USU Personal Contest 20092078129

1725Sold Out!Ural Regional School Programming Contest 20091869131

1982Electrification PlanUral FU Championship 2013828133

1022Genealogical TreeAutumn School Contest 20008706135

1931Excellent TeamUral FU Championship 20121024136

1964Chinese DialectsUral FU Personal Contest 2013885136

1352Mersenne PrimesSpring School Contest 20052979137

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101511138

1021Sacrament of the SumAutumn School Contest 20008479139

1222Chernobyl’ EaglesUSU Championship 20022776141

1740Deer is Better!USU Championship 20091728141

1402CocktailsAutumn School Contest 20052878142

1984Dummy GuyUral FU Championship 2013774142

1026Questions and AnswersAutumn School Contest 20008207143

1612Tram ForumUral Championship 20082122143

1142RelationsDSAP Vietnam Online Contest November 20012655144

1864Get-Together at Den'sUral FU Championship 20111212144

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional757144

1576Telephone TariffsAutumn School Contest 20072204146

1084Goat in the GardenSpring School Contest 20017042147

1178Akbardin’s RoadsUSU Personal Contest 20022626147

1821BiathlonUSU Personal Contest 20111325147

1306Sequence MedianUral Championship 19982618153

1572Yekaterinozavodsk Great WellAutumn School Contest 20072099154

1210Kind SpiritsAutumn School Contest 20022511155

1756One and a Half DiggersUSU Personal Contest 20101472156

1167Bicolored HorsesRomanian Online Contest December 20012445157

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional898157

1709Penguin-AviaUral Championship 20091671158

1073Square CountryUSU Personal Contest 20016599160

1878Rubinchik's CubeUral Regional School Programming Contest 20111079161

1295Crazy NotionsSpring School Contest 20042470162

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional490163

1017StaircasesUSU Local Contest. 19997194164

1135RecruitsNEERC 2001 Central Subregional2331164

1157Young TilerUral Championship 2001. Round 22336164

2073Log FilesUral Regional School Programming Contest 2015304164

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional856165

2069Hard RockUral Regional School Programming Contest 2015300166

1280Topological SortingNEERC 2003 Central Subregional2388167

1506Columns of NumbersNEERC 2006 Eastern Subregional2169167

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101244168

1874Football GoalUral Regional School Programming Contest 20111038168

1944Record of the Attack at the OrbitUral FU Personal Contest 2012794169

1613For Fans of StatisticsUral Championship 20081790170

1213Cockroaches!Autumn School Contest 20022285171

1354Palindrome. Again PalindromeSpring School Contest 20052376171

1012K-based Numbers. Version 26854172

1272Non-Yekaterinburg SubwayUSU Championship 20032302173

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091402174

1769Old Ural LegendUral Championship 20101303174

1640Circle of WinterAutumn School Contest 20081606175

1800Murphy's LawNEERC 2010 Eastern Subregional1188175

1586Threeprime NumbersNEERC 2007 Eastern Subregional1821176

1930Ivan's CarUral Regional School Programming Contest 2012797176

1335White ThesisAutumn School Contest 20042266178

1413Mars JumperUSU Championship 20052284178

1685OrthographyUSU Personal Contest 20091502178

1134CardsNEERC 2001 Central Subregional2135179

1789Searching for the DodecahedronUral Regional School Programming Contest 20101164179

1846GCD 2010Petrozavodsk Summer 2010. USU Contest987179

1193Queue at the ExamSpring School Contest 20022143180

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1519180

1048Superlong SumsUSU Local Contest. March 20006300182

1869New Year CruiseUral FU Championship 2011959182

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional436183

1102Strange DialogTetrahedron Team Online Contest May 20012062184

1133Fibonacci SequenceNEERC 2001 Central Subregional2047187

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1498187

1207Median on the PlaneUSU Local Contest. March 20022054188

1114BoxesBulgarian Online Contest September 20012011190

1645Ski RaceAutumn School Contest 20081476190

1164FillwordNEERC 2001 Northern Subregional2008191

1885Passenger ComfortNEERC 2011 Eastern Subregional899193

1208Legendary Teams ContestUSU Local Contest. March 20021979195

1138Integer PercentageNEERC 2001 Central Subregional1928198

1423String TaleTimus Top Coders: First Challenge1985198

1023ButtonsAutumn School Contest 20005886200

1112CoverBulgarian Online Contest September 20011909200

1152False MirrorsUral Championship 2001. Round 21919200

1680The First NonqualifyingUSU Personal Contest 20091335200

1348Goat in the Garden 2Spring School Contest 20051980205

2024Adventure TimeUral Regional School Programming Contest 2014381206

1987Nested SegmentsUral FU Championship 2013526208

1249Ancient NecropolisUSU Local Contest. March 20031869210

1002Phone NumbersCentral European Olympiad in Informatics 19995596211

1200Horns and HoofsUSU Local Contest. March 20021806213

2065Different SumsUral Regional School Programming Contest 2015232213

1490Fire CircleAutumn School Contest 20061679217

1515CashmasterTimus Top Coders: Third Challenge1633218

1183Brackets SequenceNEERC 20011751220

1052Rabbit HuntUSU Local Contest. March 20005210221

1491Unreal StoryAutumn School Contest 20061642221

1494MonobilliardsAutumn School Contest 20061644221

1635Mnemonics and PalindromesUSU Championship 20081264223

1737Mnemonics and Palindromes 3USU Championship 20091088223

1011ConductorsUSU Championship 19975283224

1125HopscotchUSU Championship 20011702224

1033LabyrinthUral Championship 19995171227

1795Husband in a ShopUral Regional School Programming Contest 2010909229

1889Airport AnnouncementsNEERC 2011 Eastern Subregional751230

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015214230

1242WerewolfUSU Personal Contest 20031700231

1333Genie Bomber 2Autumn School Contest 20041749231

1922Superhero TeamUral Regional School Programming Contest 2012601233

1204IdempotentsUSU Local Contest. March 20021641234

1049Brave BalloonistsUSU Local Contest. March 20004903235

1122GameAutumn School Contest 20011620235

1150Page NumbersUral Championship 2001. Round 21615237

2070Interesting NumbersUral Regional School Programming Contest 2015207237

1826MinefieldUSU Personal Contest 2011812238

2003Simple MagicUral Regional School Programming Contest 2013448239

1205By the Underground or by Foot?USU Local Contest. March 20021603240

1355Bald Spot RevisitedSpring School Contest 20051691240

1191Catch the thief!Spring School Contest 20021590242

1303Minimal CoverageUral Championship 19981643243

1998The old PadawanNEERC 2013 Eastern Subregional447243

1108HeritageBulgarian Online Contest September 20011561244

1247Check a SequenceUSU Personal Contest 20031602245

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1670245

1113JeepBulgarian Online Contest September 20011531249

1603EruditeUSU Personal Contest 20081230249

1433DiamondsUSU Personal Contest 20061551252

1109ConferenceBulgarian Online Contest September 20011502253

1718RejudgeNEERC 2009 Eastern Subregional960254

1298KnightSpring School Contest 20041566255

1010Discrete FunctionUSTU PhysTech Cup 20004613256

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014089256

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1355257

1779The Great TeamUral SU Championship 2010805259

2021Scarily interesting!NEERC 2014 Eastern Subregional305259

1080Map ColoringWinter Mathematical Festival Varna 20014029260

1195Ouths and CrossesSpring School Contest 20021473261

1981Parallel and PerpendicularUral FU Championship 2013415262

1590Bacon’s CipherNEERC 2007 Eastern Subregional1216263

1028StarsUral Championship 19994398267

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031468267

1658Sum of DigitsNEERC 2008 Eastern Subregional1048267

1823Ideal GasUSU Personal Contest 2011720268

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012519269

1087The Time to Take StonesSpring School Contest 20013842270

2034CaravansUral Regional School Programming Contest 2014287271

1179Numbers in TextUSU Personal Contest 20021412272

1684Jack's Last WordUSU Personal Contest 2009981272

1220StacksUSU Championship 20021427273

1726VisitsUral Regional School Programming Contest 2009890273

1047Simple CalculationsUSU Local Contest. March 20004173275

1117HierarchyAutumn School Contest 20011374277

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1321277

1741Communication FiendUSU Championship 2009872277

2067Friends and BerriesUral Regional School Programming Contest 2015176277

1211Collective GuaranteeAutumn School Contest 20021399278

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest841278

1933Guns for Battle!Ural FU Championship 2012498278

1537EntsUSU Personal Contest 20071233281

1244GentlemenUSU Personal Contest 20031389282

1032Find a MultipleUral Championship 19993546289

1753BookshelfUSU Personal Contest 2010791289

1024PermutationsAutumn School Contest 20004038291

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1256291

1501Sense of BeautyNEERC 2006 Eastern Subregional1239292

1018Binary Apple TreeUSU Local Contest. 19994018293

1053PinocchioNEERC 2000 Central Subregional3909293

1497Cutting a SquareAutumn School Contest 20061231295

1989SubpalindromesUral FU Championship 2013368295

1184Cable MasterNEERC 20011299296

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest789296

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014260298

1377Lara CroftUral Championship 2005. Round 11362299

1551Sumo TournamentUral Championship 20071134300

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional682302

2046The First Day at SchoolUral Championship 2015204303

1934Black SpotUral FU Championship 2012454304

1127Colored BricksUSU Championship 20011242307

1036Lucky Tickets3808308

1124MosaicUSU Championship 20011237308

1215Exactness of Projectile HitAutumn School Contest 20021261308

1941Scary Martian WordUral FU Personal Contest 2012431309

1116Piecewise Constant FunctionAutumn School Contest 20011221312

1153SupercomputerUral Championship 2001. Round 21223312

1793Tray 2Ural Regional School Programming Contest 2010664312

1904The Lessons of the PastUral Championship 2012448313

1013K-based Numbers. Version 3260314

1137Bus RoutesNEERC 2001 Central Subregional1215314

1227Rally ChampionshipNEERC 2002 Central Subregional1230316

1190Bar of ChocolateSpring School Contest 20021211317

1588JamaicaNEERC 2007 Eastern Subregional1003318

1294Mars SatellitesSpring School Contest 20041252319

1008Image EncodingUSTU PhysTech Cup 20003661322

1121BranchesAutumn School Contest 20011180322

2026Dean and ScheduleUral Regional School Programming Contest 2014237326

1302Delta-waveUral Championship 19981218328

1320Graph DecompositionUral Championship 2004. Round 21217328

1029MinistryUral Championship 19993093331

1521War Games 2Timus Top Coders: Third Challenge1069332

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest798332

1604Country of FoolsUSU Personal Contest 2008910335

1201Which Day Is It?USU Local Contest. March 20021141336

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional320336

1218Episode N-th: The Jedi TournamentUSU Championship 20021152337

1450Russian PipelinesTimus Top Coders: Second Challenge1139337

1185WallNEERC 20011133338

1648YachtsAutumn School Contest 2008823339

1060Flip GameNEERC 20003199340

1156Two RoundsUral Championship 2001. Round 21118341

1160NetworkNEERC 2001 Northern Subregional1139342

1406Next NumberAutumn School Contest 20051189343

1517Freedom of ChoiceTimus Top Coders: Third Challenge1028345

1223Chernobyl’ Eagle on a RoofUSU Championship 20021122346

1346Intervals of MonotonicityUSU Championship 20041170346

2047MathsUral Championship 2015177347

1431DiplomasUSU Personal Contest 20061118349

1031Railway TicketsUral Championship 19993351350

1992CVSNEERC 2013 Eastern Subregional307350

1651Shortest SubchainNEERC 2008 Eastern Subregional788353

1140Swamp IncidentNEERC 2001 Central Subregional1075354

1901Space ElevatorsUral Championship 2012396354

1090In the Army NowUSU Local Contest. March 20012773355

1282Game TreeNEERC 2003 Central Subregional1112356

1995Illegal spicesNEERC 2013 Eastern Subregional300358

1483Table FootballUSU Championship 20061011359

1261TipsAutumn School Contest 20031100360

1246Tethered DogUSU Personal Contest 20031083361

1262Pseudo-Roman NumberAutumn School Contest 20031097361

1007Code WordsUSU Championship 19973260362

1828Approximation by a ProgressionUSU Personal Contest 2011529363

1292Mars Space StationsSpring School Contest 20041088366

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional212367

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014209367

1574Mathematicians and bracketsAutumn School Contest 2007868369

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional464369

1783Nuclear Arms RaceUral SU Championship 2010560370

1055CombinationsNEERC 2000 Central Subregional3088371

1854Negotiations with ParthiansPetrozavodsk Summer 2011. USU Contest471371

1176HyperchannelsUSU Personal Contest 20021023374

1403CourierAutumn School Contest 20051088374

1495One-two, One-two 2Autumn School Contest 2006965375

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest925375

1141RSA Attack1013376

1759Long-LiversUSU Personal Contest 2010606376

2030Awesome Backup SystemUral Regional School Programming Contest 2014204376

1078SegmentsWinter Mathematical Festival Varna 20012755379

1039Anniversary PartyUSU Championship 20003060380

1229Strong BrickworkNEERC 2002 Central Subregional1022380

1923Scary PoliticsUral Regional School Programming Contest 2012365380

1963KiteUral FU Personal Contest 2013308382

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest607383

1356Something EasierSpring School Contest 20051046387

1003ParityCentral European Olympiad in Informatics 19993045388

1259How to Become Star?Autumn School Contest 20031019388

1279WarehouseNEERC 2003 Central Subregional1020388

1631Drunk King 2USU Championship 2008723388

1289One Way TicketUSU Personal Contest 20041024389

1860FiborialPetrozavodsk Summer 2011. USU Contest448389

1115ShipsBulgarian Online Contest September 2001970391

1562GM-pineappleUSU Championship 2007818392

1774Barber of the Army of MagesUral SU Championship 2010529392

1217Unlucky TicketsUSU Championship 2002984394

1111SquaresBulgarian Online Contest September 2001961395

1489Points on a ParallelepipedAutumn School Contest 2006913396

1015Test the Difference!USU Local Contest. 19992956398

1427SMSTimus Top Coders: First Challenge981399

1287Mars CanalsUSU Personal Contest 2004993401

1407One-two, One-twoAutumn School Contest 20051015401

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest679402

1094E-screenUSU Local Contest. March 20012419407

1107Warehouse ProblemTetrahedron Team Online Contest May 2001922408

1077Travelling Tours929409

1343Fairy TaleUSU Championship 2004987409

1350CanteenSpring School Contest 2005983411

1732Ministry of TruthUSU Championship 2009582413

1128Partition into GroupsUSU Championship 2001917414

1221Malevich Strikes Back!USU Championship 2002934415

1602ElevatorUSU Personal Contest 2008729417

1252Sorting the TombstonesUSU Local Contest. March 2003935418

1507Difficult DecisionNEERC 2006 Eastern Subregional860418

1942Attack at the OrbitUral FU Personal Contest 2012316418

1038Spell CheckerUSU Championship 20002773419

1291Gear-wheelsSpring School Contest 2004940423

1571InterpretersUSU Championship 2007758423

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001895425

1513Lemon TaleTimus Top Coders: Third Challenge834425

1089Verification with a VocabularySpring School Contest 20012426427

1181Cutting a Painted PolygonUSU Personal Contest 2002896427

1480CouponsUSU Championship 2006849427

1700AwakeningUral Championship 2009613427

1202Rectangles TravelUSU Local Contest. March 2002893429

1519Formula 1Timus Top Coders: Third Challenge822431

1900Brainwashing DeviceUral Championship 2012322432

1416ConfidentialUSU Championship 2005932434

1019Line PaintingUSU Local Contest. 19992703435

1641DutiesAutumn School Contest 2008639436

1258PoolAutumn School Contest 2003901438

1776Anniversary FireworkUral SU Championship 2010467443

1643Attack of the Dark FortressAutumn School Contest 2008625445

1890Money out of Thin AirNEERC 2011 Eastern Subregional381448

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional308450

1129Door PaintingUSU Championship 2001842451

1410CrackUSU Championship 2005890454

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional449456

2063Black and WhiteUral Regional School Programming Contest 2015103456

1051Simple Game on a GridUSU Local Contest. March 20002509457

1728Curse on Team.GOVUral Regional School Programming Contest 2009524461

1072RoutingUSU Personal Contest 20012267465

1535The Hobbit or There and Back AgainUSU Personal Contest 2007741465

1155TroubleduonsUral Championship 2001. Round 2815467

1238FoldingNEERC 2002829469

1189Pairs of IntegersNEERC 2001813470

1884Way to the UniversityUral Regional School Programming Contest 2011364470

2048HistoryUral Championship 2015128470

2071Juice CocktailsUral Regional School Programming Contest 201599473

1971Graphics SettingsUral Championship 2013239474

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014159476

1273TieUSU Championship 2003827477

1091Tmutarakan ExamsUSU Local Contest. March 20012053479

1162Currency ExchangeNEERC 2001 Northern Subregional794479

1236Decoding TaskNEERC 2002804483

1329Galactic HistoryAutumn School Contest 2004828485

1428Jedi RiddleTimus Top Coders: First Challenge805485

1525PathPetrozavodsk Winter 2007. D.Gozman Contest714485

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Contest152486

1103Pencils and CirclesTetrahedron Team Online Contest May 2001771487

1326Bottle TapsUral Championship 2004. Round 2815488

1401GamersAutumn School Contest 2005828490

1316Electronic AuctionUral Championship 2004. Round 1808492

1628White StreaksUSU Championship 2008568492

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional489495

1095Nikifor 3USU Local Contest. March 20011981496


1430Crime and PunishmentTimus Top Coders: First Challenge787496

1579Coat TransportationAutumn School Contest 2007638500

1871Seismic WavesUral FU Championship 2011342501

1891Language OceanNEERC 2011 Eastern Subregional339502

1212BattleshipAutumn School Contest 2002768503

1322SpyUral Championship 2004. Round 2791503

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional152503

1870Zinium 2Ural FU Championship 2011340504

1980Road to InvestorUral Championship 2013223506

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014149506

1066GarlandNEERC 20002136507

1158Censored!NEERC 2001 Northern Subregional748508

1754Explosion in a PyramidUSU Personal Contest 2010444510

1056Computer NetNEERC 2000 Central Subregional2235512

1729Dead Man's ChestUral Regional School Programming Contest 2009471512

2004Scientists from SpilkovoUral Regional School Programming Contest 2013204512

1182Team Them Up!NEERC 2001741515

2062Ambitious ExperimentUral Regional School Programming Contest 201590515

1069Prufer CodeUSU Personal Contest 20012016523

1577E-mailAutumn School Contest 2007609523

1045Funny GameUSU Local Contest. March 20002190524

1439Battle with You-Know-WhoUral Championship 2006732526

1334CheckersAutumn School Contest 2004761527

2009Canteen LineUral Regional School Programming Contest 2013198527

1600AirportUSU Personal Contest 2008574528

1366PresentsUral Championship 2005. Round 2759532

1143Electric PathDSAP Vietnam Online Contest November 2001711533

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest602533

1101Robot in the FieldTetrahedron Team Online Contest May 2001699537

1928Another Ecology ProblemUral Regional School Programming Contest 2012254539

1314Chase in SubwayUral Championship 2004. Round 1730544

1400Cellular CharactersAutumn School Contest 2005741547

1414Astronomical DatabaseUSU Championship 2005736548

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup213548

1838Samurai's StrokeUral Championship 2011338551

1362Classmates 2Ural Championship 2005. Round 2731552

1534Football in GondorUSU Personal Contest 2007623552

1803The Czechs' RiflesNEERC 2010 Eastern Subregional369552

1004Sightseeing TripCentral European Olympiad in Informatics 19992130554

1027D++ AgainAutumn School Contest 20002116555

1760Infernal WorkUSU Personal Contest 2010407555

1966Cycling RoadsUral FU Personal Contest 2013208558

1605Devil's SequenceUSU Personal Contest 2008539562

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005716563

1806Mobile TelegraphsNEERC 2010 Eastern Subregional361564

1064Binary SearchNEERC 20001916566

1085MeetingSpring School Contest 20011823567

1448Lighting in HogwartsUral Championship 2006678567

1990PodracingNEERC 2013 Eastern Subregional185568

1437Gasoline StationUSU Personal Contest 2006681570

1710Boris, You Are Wrong!Ural Championship 2009457570

1713Key SubstringsNEERC 2009 Eastern Subregional423570

1071Nikifor 2USU Personal Contest 20011846571

1650BillionairesNEERC 2008 Eastern Subregional482573

1061Buffer ManagerNEERC 20001886575

1172Ship RoutesRomanian Online Contest December 2001659576

1421Credit OperationsTimus Top Coders: First Challenge676577

1059ExpressionNEERC 2000 Central Subregional1971580

1698Square Country 5Petrozavodsk Winter 2009. USU Contest452580

1550Dean's Pyramid 3Ural Championship 2007581581

1706Cipher Message 2Ural Championship 2009446583

1592Chinese WatchesNEERC 2007 Eastern Subregional542584

1939First SealUral FU Championship 2012231585

1070Local TimeUSU Personal Contest 20011795587

1962In Chinese RestaurantUral FU Personal Contest 2013196590

1682Crazy ProfessorUSU Personal Contest 2009444594

1375Bill CleversUral Championship 2005. Round 1680595

1701Ostap and PartnersUral Championship 2009437595

1767The House of Doctor DeeUral Championship 2010374595

1822Hugo II's WarUSU Personal Contest 2011319595

1445Christmas giftsUral Championship 2006644597

1465Pawn GamePetrozavodsk Winter 2006. USU Contest613599

1892Morning in KoltsovoNEERC 2011 Eastern Subregional282599

1866Poetic FootUral FU Championship 2011284600

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Contest121601

1659Regular TrianglesNEERC 2008 Eastern Subregional458603

1358CablesSpring School Contest 2005665605

1325DirtUral Championship 2004. Round 2655606

1067Disk TreeNEERC 20001781608

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest526608

1903Unidentified ShipsUral Championship 2012226608

1054Hanoi TowerNEERC 2000 Central Subregional1868612

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest463613

1690Army of MagesPetrozavodsk Winter 2009. USU Contest425616

1994The Emperor's planNEERC 2013 Eastern Subregional169619

1861Graveyard in DeyjaPetrozavodsk Summer 2011. USU Contest277621

1309DisputeUral Championship 2004. Round 1637622



1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional215635

1174Weird PermutationsRomanian Online Contest December 2001593639

1943Space RummyUral FU Personal Contest 2012203639

1248Sequence SumUSU Personal Contest 2003606641

1542AutocompletionUral Championship 2007525642

1332Genie BomberAutumn School Contest 2004622643

1254Die HardUSU Local Contest. March 2003600647

1234BricksNEERC 2002596648

1940Not So Simple YearsUral FU Championship 2012207650

1096Get the Right Route Plate!USU Local Contest. March 20011508651

2008SwiftyUral Regional School Programming Contest 2013158653

1253NecrologuesUSU Local Contest. March 2003593655

1452Pascal vs. C++Timus Top Coders: Second Challenge581655

1961Cantonese DialectUral FU Personal Contest 2013175657

1088Ilya MurometzSpring School Contest 20011569658

1186Chemical ReactionsNEERC 2001577659

1606SlalomUSU Personal Contest 2008458659

1932The Secret of IdentifierUral FU Championship 2012204659

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009361663

1371Cargo AgencyUral Championship 2005. Round 1605668

1564Counting OnesUSU Championship 2007475669

1443RailsUral Championship 2006568675

1500Pass LicensesNEERC 2006 Eastern Subregional529675

1755CakeUSU Personal Contest 2010333675

1872Spacious OfficeUral FU Championship 2011250678

1486Equal SquaresUSU Championship 2006530679

1286Starship TravelUSU Personal Contest 2004579682

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional198687

1168Radio StationsRomanian Online Contest December 2001549689

1772Ski-Trails for RobotsUral Championship 2010322689

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012196691

1633HippogriffsUSU Championship 2008400693

1773Metro to Every HomeUral Championship 2010320693

1274Fractional ArithmeticNEERC 2003 Central Subregional560701

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest515701

1440Training ScheduleUral Championship 2006546702

1832Arirang ShowUral Championship 2011263703

1780Gray CodeUral SU Championship 2010288708

1629TripUSU Championship 2008391709

1986Paul’s SaladsUral FU Championship 2013147710

1305Convex HullUral Championship 1998556711

1230Introspective ProgramNEERC 2002 Central Subregional541712

1034Queens in Peaceful PositionsUral Championship 19991639713

1057Amount of DegreesNEERC 2000 Central Subregional1602713

1611DecimationUral Championship 2008418713

1830Help in the RNOSUral Championship 2011259713

1132Square Root528714

1301Cube in LabyrinthUral Championship 1998553715

1250Sea BurialUSU Local Contest. March 2003539719

1875Angry BirdsUral Regional School Programming Contest 2011232726

2064CaterpillarsUral Regional School Programming Contest 201561726

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup158727

1775Space BowlingUral SU Championship 2010280728

1988Planet Ocean LandingUral FU Championship 2013143728

1169PairsRomanian Online Contest December 2001518729

2052Physical EducationUral Championship 201579729

1484Film RatingUSU Championship 2006490733

1037Memory ManagementUSU Championship 20001578734

1974Similar TunesUral Championship 2013150737

1159FenceNEERC 2001 Northern Subregional510740

1016Cube on the WalkUSU Local Contest. 19991577744

1405Goat in the Garden 5Autumn School Contest 2005542744

1614National Project “Trams”Ural Championship 2008400744

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest491745

1235Cricket FieldNEERC 2002514750

1825Ifrit Bomber 2USU Personal Contest 2011251750

2060Subpalindrome pairsPalindromic Contest 69751

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional268752

1996Cipher Message 3NEERC 2013 Eastern Subregional137754

2017Best of a bad lotNEERC 2014 Eastern Subregional98755

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest527765

1646Godzilla Strikes Back!Autumn School Contest 2008358768

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest414769

1424MinibusTimus Top Coders: First Challenge503771

1512ZiniumTimus Top Coders: Third Challenge450779

1647Divide an Island!Autumn School Contest 2008352781

1392Dreaming of Stars515782

1593Square Country. Version 2336786

1042Central HeatingUSU Championship 20001470787

1936RoshamboUral FU Championship 2012169788

1738Computer SecurityUSU Championship 2009300789

1587Flying PigNEERC 2007 Eastern Subregional396794

1716Alternative SolutionNEERC 2009 Eastern Subregional300796

1030TitanicUral Championship 19991464798

1105Observers ColoringTetrahedron Team Online Contest May 2001467798

1927Herbs and MagicUral Regional School Programming Contest 2012168800

1323ClassmatesUral Championship 2004. Round 2493801

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest449802

1689Fisherman and BarbellUSU Personal Contest 2009324807

1268Little ChuUSU Championship 2003484809

1720Summit Online JudgeNEERC 2009 Eastern Subregional295809

1276TrainNEERC 2003 Central Subregional482812

1456Jedi Riddle 2Timus Top Coders: Second Challenge465815

1705Gangster HaresUral Championship 2009315818

1269Obscene Words FilterUSU Championship 2003476822

1547Password SearchUral Championship 2007408822

1379Cups TransportationUral Championship 2005. Round 1487826

1165SubnumberNEERC 2001 Northern Subregional455828

1905Travel in TimeUral Championship 2012162835

1147Shaping RegionsDSAP Vietnam Online Contest November 2001450836

1715Another Ball KillerNEERC 2009 Eastern Subregional282845

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest227845

1436BillboardUSU Personal Contest 2006455847

1154Mages ContestUral Championship 2001. Round 2439857

1342EnterpriseUSU Championship 2004465859

1006Square FramesUSU Championship 19971360864

1630TalismanUSU Championship 2008316872

1608Lucky Tickets 2008Ural Championship 2008339874

1498Stroke at Full SpeedAutumn School Contest 2006408875

1277Cops and ThievesNEERC 2003 Central Subregional446877

1824Ifrit BomberUSU Personal Contest 2011213878

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Contest79884

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest257885

1373Pictura ex MachinaUral Championship 2005. Round 1453887

1578Mammoth HuntAutumn School Contest 2007355887

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest384890

1324Extra SpacesUral Championship 2004. Round 2442891

1233Amusing NumbersNEERC 2002429895

1921Chaos and OrderUral Regional School Programming Contest 2012149895

1245PicturesUSU Personal Contest 2003428901

1836Babel FishUral Championship 2011203901

1863Peaceful AtomUral FU Championship 2011185904

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest402906

1761Binary PalindromeUSU Personal Contest 2010245908

1948The Robot on the LineUral FU Personal Contest 2012140908

1175Strange SequenceUSU Personal Contest 2002415909

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest250909

1883Ent's BirthdayUral Regional School Programming Contest 2011183910

1979Resources DistributionUral Championship 2013119915

1580Dean's DebtsAutumn School Contest 2007343917

1237Evacuation PlanNEERC 2002418919

1285Thread in a HyperspaceUSU Personal Contest 2004425924

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest303927

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest279928

1970皇后像廣場Ural FU Personal Contest 2013121928

1364LaraKillerUral Championship 2005. Round 2429932

1422FirefliesTimus Top Coders: First Challenge413935

1575Yekaterinburg Subway 2Autumn School Contest 2007336936

1976Game OptimizationUral Championship 2013116937

1730ManBearPigUral Regional School Programming Contest 2009252939

1949The Best Picture in the GalaxyUral FU Personal Contest 2012135939

1784RoundersUral SU Championship 2010214942

1983Nectar GatheringUral FU Championship 2013108944

1937Davy Jones’s OrganUral FU Championship 2012139947

1278“… Connecting People”NEERC 2003 Central Subregional411949

1887Frequent Flyer CardNEERC 2011 Eastern Subregional174951

1857Alice and BandersnatchPetrozavodsk Summer 2011. USU Contest176958

1435Financial ErrorUSU Personal Contest 2006398965

1398Bishop and Pawn359966

1339BabiesUSU Championship 2004412967

1907Coffee and BunsUral Championship 2012138970

1040Airline CompanyUSU Championship 20001181978

1827Indigenous WarsUSU Personal Contest 2011190979

1418Military StoryUSU Championship 2005406983

1451Beerhouse TaleTimus Top Coders: Second Challenge382987

1965Pear TreesUral FU Personal Contest 2013113989

1569Networking the “Iset”USU Championship 2007317992

1130Nikifor's WalkUSU Championship 2001375997

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest3161000

1591Abstract ThinkingNEERC 2007 Eastern Subregional3121001

1331VladislavaAutumn School Contest 20043941005

1768Circular StringsUral Championship 20102161012

1862Very Wealthy MoleUral FU Championship 20111641013

1879GOV-internship 2Ural Regional School Programming Contest 20111631015

1539Intelligence DataUSU Personal Contest 20073321021

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest2581025

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3541026

1791Uncle Styopa and BusesUral Regional School Programming Contest 20101951026

1075Thread in a SpaceUSU Personal Contest 200110161033

1570Eating HighUSU Championship 20073031037

1151RadiobeaconsUral Championship 2001. Round 23611038

1518Jedi Riddle 3Timus Top Coders: Third Challenge3341042

1311Stable ConstructionUral Championship 2004. Round 13761043

1722Observation DeckUral Regional School Programming Contest 20092251047

1173Lazy SnailRomanian Online Contest December 20013571049

1790Searching for the TruthUral Regional School Programming Contest 20101861074

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Contest631078

1687Numismatics for FunUSU Personal Contest 20092391083

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1211091

1985Prime SquareUral FU Championship 2013921092

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2061094

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. USU Contest1531094

1317HailUral Championship 2004. Round 23571097

1341DeviceUSU Championship 20043611100

2055Urban GeographyUral Championship 2015491100

1447Portkey NetworkUral Championship 20063371125

1968Glass PyramidUral FU Personal Contest 2013981126

1444ElephpotamusUral Championship 20063361128

2007Mutants versus MachinesUral Regional School Programming Contest 2013871130

1540Battle for the RingUSU Personal Contest 20072981134

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1661138

1511Fiscal OperationsTimus Top Coders: Third Challenge3041141

1434Buses in VasyukiUSU Personal Contest 20063351142

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2311149

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest1951153

1627JoinPetrozavodsk Winter 2008. ITMO Contest2411156

1544Classmates 3Ural Championship 20072851165

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1621165

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1431169

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3411170

1357Teakettle 1.0 for DummiesSpring School Contest 20053391171

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3041172

1458War GamesTimus Top Coders: Second Challenge3191176

1408Polynomial MultiplicationAutumn School Contest 20053391177

1766Humpty DumptyUral Championship 20101821191

1807Cartridges for MaximNEERC 2010 Eastern Subregional1641202

1453QueenTimus Top Coders: Second Challenge3101209

1595Perfect Sequence2051209

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2111213

1533Fat HobbitsUSU Personal Contest 20072761221

1736Chinese HockeyUSU Championship 20091901223

1035Cross-stitchUral Championship 19999451228

1307ArchiverUral Championship 2004. Round 13171232

1310ACM DiagnosticsUral Championship 2004. Round 13161235

1359ConstructionSpring School Contest 20053201238

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2511249

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2481249

1946Chinese Hockey 3Ural FU Personal Contest 2012991249

1487Chinese FootballUSU Championship 20062821255

1669Universal WordPetrozavodsk Winter 2008. USU Contest2101259

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1861259

1947MeanderUral FU Personal Contest 2012981261

1686Photovoltaic SpaceshipUSU Personal Contest 20092031266

1546Japanese SortingUral Championship 20072611268

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest2841270

1321Floor IndicatorUral Championship 2004. Round 23061275

1538Towers of GuardUSU Personal Contest 20072621284

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup851286

1657Cube SnakeNEERC 2008 Eastern Subregional2091288

1099Work Scheduling6841289

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2621290

1177Like ComparisonsUSU Personal Contest 20022881297

1393Average Common Prefix3001308

1050Preparing an ArticleUSU Local Contest. March 20008671313

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest2701315

1171Lost in SpaceRomanian Online Contest December 20012821319

1065FrontierNEERC 20008141322

1097Square Country 2USU Local Contest. March 20017351326

1328FireballAutumn School Contest 20042941336

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional961349

1360Philosophical DisputeUral Championship 2005. Round 22931350

20503D-modelingUral Championship 2015381352

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2491354

1281River BasinNEERC 2003 Central Subregional2851355

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2031362

1499KerchiefsAutumn School Contest 20062571370

1240Heroes of Might and MagicNEERC 20022761374

1318LogarithmUral Championship 2004. Round 22821379

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1411385

1950Martian FarmlandsUral FU Personal Contest 2012861419

1265MirrorUSU Championship 20032691432

1345HTMLUSU Championship 20042751432

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2351432

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1551432

1449Credit Operations 2Timus Top Coders: Second Challenge2601433

1419Maps of the Island WorldsUSU Championship 20052751435

1266Kirchhoff's LawUSU Championship 20032681437

1299PsyloniansSpring School Contest 20042671452

1762Search for a Hiding-PlaceUSU Personal Contest 20101491456

1170DesertRomanian Online Contest December 20012541459

1441From the History of Gringotts BankUral Championship 20062571462

1347BlogSpring School Contest 20052681470

1770The Party of Ural ChampionsUral Championship 20101441485

1412Autumn TideUSU Championship 20052651487

1043Cover an ArcUSU Championship 20007681498

1802Cube PuzzleNEERC 2010 Eastern Subregional1291504

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup711509

1251Cemetery ManagerUSU Local Contest. March 20032481531

1886Trip 2NEERC 2011 Eastern Subregional1041535

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2291540

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Contest411543

1908Brute-force SearchUral Championship 2012831544

1241Inlay CuttersNEERC 20022421561

1851GOV-internshipPetrozavodsk Summer 2011. USU Contest1041564

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1181565

1488ACM PokerUSU Championship 20062221580

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup671587

1764TranssibUral Championship 20101341588

1565The Duel for ThreeUSU Championship 20071941591

1568Train Car SortingUSU Championship 20071931599

1782Jack's New WordUral SU Championship 20101221599

1337BureaucracyAutumn School Contest 20042431605

1485Football and LieUSU Championship 20062181608

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2451611

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1591625

1894Non-Flying WeatherNEERC 2011 Eastern Subregional971636

1707Hypnotoad's SecretUral Championship 20091521642

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1321664

1670AsteriskPetrozavodsk Summer 2008. USU Contest1551665

1734Endgame DatabaseUSU Championship 20091361675

1583CheeseNEERC 2007 Eastern Subregional1811687

1062TriathlonNEERC 20006331694

1516NostalgiaTimus Top Coders: Third Challenge2001706

1420Integer-Valued Complex DivisionUSU Championship 20052291711

1257HyphenationAutumn School Contest 20032231713

1046Geometrical DreamsUSU Local Contest. March 20006561729

1338AutomobilesUSU Championship 20042251737

1508Japanese PuzzleNEERC 2006 Eastern Subregional1991742

1610CactusesUral Championship 20081651744

1831Tsyfirkin's LessonUral Championship 20111001744

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012081764

2022Riding a ToadNEERC 2014 Eastern Subregional361773

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2001778

1702CrossroadUral Championship 20091391785

1841CablewaysPetrozavodsk Summer 2010. USU Contest901788

1514National ParkTimus Top Coders: Third Challenge1901791

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. USU Contest891800

1557Network AttackPetrozavodsk Summer 2007. NSU Contest1711802

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1011805

1615Tram SolitaireUral Championship 20081581816

1378Artificial IntelligenceUral Championship 2005. Round 12161817

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1831818

1425Queen 2Timus Top Coders: First Challenge2071823

1304ParallelepipedUral Championship 19982101829

1492Vasya's Dad 2Autumn School Contest 20061901829

1969Hong Kong TramUral FU Personal Contest 2013561842

1093DartsUSU Local Contest. March 20015231854

2059Not common palindromesPalindromic Contest 221855

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1381856

1417Space Poker 2USU Championship 20052101859

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest861862

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1161876

1503PolynomialNEERC 2006 Eastern Subregional1831886

1163ChapaevNEERC 2001 Northern Subregional1921906

1455Freedom of SpeechTimus Top Coders: Second Challenge1921916

1781Clean CodeUral SU Championship 20101001919

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1331921

1532Lost in TranslationUSU Personal Contest 20071711930

1216Two Pawns and One KingUSU Championship 20021911950

1148Building TowersDSAP Vietnam Online Contest November 20011871952

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1311964

1187Statistical TroubleNEERC 20011861974

1634Spider MiteUSU Championship 20081341974

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional621985

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1281990

1396Maximum. Version 21831993

1839The MentaculusUral Championship 2011861999

1977Energy WallUral Championship 2013492000

1757Gold BarsUSU Personal Contest 20101052013

1703Robotic ArmUral Championship 20091212030

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1822042

1063Domino PuzzleNEERC 20005232043

1315MDPAR and MIIARUral Championship 2004. Round 11872044

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest1912044

1599Winding Number162051

1267Yekaterinburg SubwayUSU Championship 20031842059

1188LibraryNEERC 20011772069

1397Points Game1682069

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Contest282071

1288AstrolocationUSU Personal Contest 20041842072

1541ChaseUSU Personal Contest 20071582079

1041NikiforUSU Championship 20005502081

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest862087

1867NanotechnologiesUral FU Championship 2011742099

1074Very Short ProblemUSU Personal Contest 20014902119

1092TransversalUSU Local Contest. March 20014552125

1945Many-armed BrothersUral FU Personal Contest 2012542128

1232Asteroid LandingNEERC 2002 Central Subregional1742131

1543Dance RevolutionUral Championship 20071512134

1549Another Japanese PuzzleUral Championship 20071512134

2053BiologyUral Championship 2015202164

1504Good MannersNEERC 2006 Eastern Subregional1582167

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1172180

1833Hopes of RowingUral Championship 2011772205

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21742223

1652Banking CrisisNEERC 2008 Eastern Subregional1162238

2051PhysicsUral Championship 2015192239

1270UnicubeUSU Championship 20031652282

1284Space PokerUSU Personal Contest 20041662283

1655Somali PiratesNEERC 2008 Eastern Subregional1132293

1256Cemetery GuardUSU Local Contest. March 20031622296

1882Old NokiaUral Regional School Programming Contest 2011662311

1481Winning ChancesUSU Championship 20061482320

1850Space TourismPetrozavodsk Summer 2010. USU Contest672322

2006Kirill the GardenerUral Regional School Programming Contest 2013372333

1368Goat in the Garden 3Ural Championship 2005. Round 21652338

1972Game TestingUral Championship 2013402360

1758Bald Spot Revisited 2USU Personal Contest 2010882362

1835Swamp DoctorUral Championship 2011712369

1735Theft of the CenturyUSU Championship 2009932374

1978E-LiteUral Championship 2013392408

1717Eligibility RulesNEERC 2009 Eastern Subregional912443

1739FaryuksUSU Championship 2009892470

1829Routing TablesUSU Personal Contest 2011692479

1275Knights of the Round TableNEERC 2003 Central Subregional1502498

1895Steaks on BoardNEERC 2011 Eastern Subregional602500

1798Fire Circle. Version 2132505

1520Empire Strikes BackTimus Top Coders: Third Challenge1322523

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional462553

1865The Island of MärketUral FU Championship 2011592555

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional862571

1300TaxesUral Championship 19981462580

1859Last Season of Team.GOVPetrozavodsk Summer 2011. USU Contest582621

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1142630

1308Dean's PyramidUral Championship 2004. Round 11432632

1704DemodulationUral Championship 2009912633

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest662636

1454Rectangles 2Timus Top Coders: Second Challenge1362650

1239Ghost BustersNEERC 20021382654

1609Tram TileUral Championship 20081042677

1312TrayUral Championship 2004. Round 11402685

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1242747

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest892797

1566Triangular PostcardsUSU Championship 20071062798

1505Oil TransferNEERC 2006 Eastern Subregional1192822

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest852823

1856War and PeacePetrozavodsk Summer 2011. USU Contest532829

1637Triangle Game 2USU Championship 2008902842

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest522884

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup322910

1694Killer WordsPetrozavodsk Winter 2009. USU Contest822915

1681Brother Bear's GardenUSU Personal Contest 2009822930

1464LightPetrozavodsk Winter 2006. USU Contest1172939

2049ChemistryUral Championship 2015122951

1482Triangle GameUSU Championship 20061142956

1597Chernobyl’ Eagle on a Roof. Version 2192959

2057Non-palidromic cuttingPalindromic Contest 102968

1858Magic CubePetrozavodsk Summer 2011. USU Contest502971

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup312981

1957MundialPetrozavodsk Winter 2013. Kontur Cup312981

1395Pascal vs. C++. Version 21192994

141140 Islands KnightsUSU Championship 20051263007

1975Model of the EarthUral Championship 2013293026

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest683030

1442Floo PowderUral Championship 20061173073

1367Top SecretUral Championship 2005. Round 21223099

1058ChocolateNEERC 2000 Central Subregional3573125

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest753155

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional353177

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest533180

1622EndspielPetrozavodsk Winter 2008. ITMO Contest813188

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest813188

1938Caribbean TriangleUral FU Championship 2012343207

1438Time Limit ExceededUSU Personal Contest 20061123229

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest513284

1429BiscuitsTimus Top Coders: First Challenge1103297

2058100500 palidnromesPalindromic Contest 83298

1909Space ReconUral Championship 2012333339

1166Funny Card GameNEERC 2001 Northern Subregional1093355

1834Tennis RacketUral Championship 2011473366

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Contest133421

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Contest133421

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1083481

2061OEIS A216264Palindromic Contest 73492

1616Square Country 4Ural Championship 2008773507

1466Magic SquarePetrozavodsk Winter 2006. USU Contest963522

1733Forgotten TechnologyUSU Championship 2009593544

1509Domino RecognitionNEERC 2006 Eastern Subregional923569

1632LasersUSU Championship 2008693598

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest803623

1598DSA Attack133639

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest393649

1999The secret moduleNEERC 2013 Eastern Subregional203694


1847ZamkadyePetrozavodsk Summer 2010. USU Contest373804

1765Error 404Ural Championship 2010503810

2054AstronomyUral Championship 201573817

1778Chinese Hockey 2Ural SU Championship 2010453838

2016Magic and ScienceNEERC 2014 Eastern Subregional113883

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup213942

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest943950

1799Sasha and swag strings34084

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest754127

1661DodecahedronPetrozavodsk Winter 2008. USU Contest564195

1973Location GeneratorUral Championship 2013184214

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest774231

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest544326

2042NikitaPetrozavodsk Summer 2014. Ural FU Contest84371

1271Sailing DirectionsUSU Championship 2003804438

1460WiresPetrozavodsk Winter 2006. USU Contest724552

1340CucarachaUSU Championship 2004794586

1344Gigantic TurnipUSU Championship 2004794586

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest704602

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Contest74628

1594Aztec Treasure464647

1967Programmer CasinoUral FU Personal Contest 2013164677

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest464788

1797Summit Online Judge. Version 2204842

1763Expert FleaUral Championship 2010374864

1771A Deputy's MorningUral Championship 2010374864

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest644975

1426RectanglesTimus Top Coders: First Challenge685072

1801The Revolution CupNEERC 2010 Eastern Subregional315100

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest705135

1365Testing CalculatorUral Championship 2005. Round 2675313

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest665405

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest435473

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest435473

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest225569

1372Death StarUral Championship 2005. Round 1635626

1906The Lost CivilizationUral Championship 2012155742

1848Fly HuntPetrozavodsk Summer 2010. USU Contest205960

1842Local RootsPetrozavodsk Summer 2010. USU Contest196165

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest346293

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest486347

1668Death Star 2Petrozavodsk Winter 2008. USU Contest336439

1674Drunk KingPetrozavodsk Summer 2008. USU Contest326540

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional336559

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest346592

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest206678

1363HalftonesUral Championship 2005. Round 2487053

1596Knight Mare137087

1653Death ConveyorNEERC 2008 Eastern Subregional297231

1536Delights of Pipe-weedUSU Personal Contest 2007367593

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest258288

1432Twofold LuckUSU Personal Contest 2006378381

1376Dean's Pyramid 2Ural Championship 2005. Round 1359127

1840Victim of AdvertisingUral Championship 2011119137

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest209156

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest259317

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup210180

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1510987

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest2711102

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1411173

1374MisereUral Championship 2005. Round 12611408

1415Mobile LifeUSU Championship 20052511679

1399Economical Director1912285

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest1612542

1708Sum of Digits 2Ural Championship 20091112663

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2113251

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest1613491

1369Cockroach RaceUral Championship 2005. Round 21814610

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1218672

1548Sakura and StatisticsUral Championship 2007621476

1589SokobanNEERC 2007 Eastern Subregional324783

1394Ships. Version 2527387