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Problem set


1000A+B Problem7627517

1001Reverse Root2200017

1785Lost in LocalizationUral Regional School Programming Contest 20101313918

1293EniyaSpring School Contest 20042159219

2012About Grisha N.NEERC 2014 Eastern Subregional531620

1409Two GangstersAutumn School Contest 20052073221

1877Bicycle CodesUral Regional School Programming Contest 2011919222

2001Mathematicians and BerriesUral Regional School Programming Contest 2013501927

1264WorkdaysAutumn School Contest 20031500328

1820Ural SteaksUSU Personal Contest 2011778128

1787Turn for MEGAUral Regional School Programming Contest 2010815629

1197Lonesome KnightSpring School Contest 20021294931

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011619032

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional489134

1639Chocolate 2Autumn School Contest 2008858935

2066Simple ExpressionUral Regional School Programming Contest 2015223335

1924Four ImpsUral Regional School Programming Contest 2012463936

2023Donald is a postmanNEERC 2014 Eastern Subregional282638

1313Some Words about SportUral Championship 2004. Round 11054640

12091, 10, 100, 1000...Autumn School Contest 2002994641


1225FlagsNEERC 2002 Central Subregional957043

1319HotelUral Championship 2004. Round 2974243

1567SMS-spamUSU Championship 2007797043

1581TeamworkAutumn School Contest 2007778444

1263ElectionsAutumn School Contest 2003879447

1585PenguinsNEERC 2007 Eastern Subregional723647

1991The battle near the swampNEERC 2013 Eastern Subregional282648

1100Final StandingsTetrahedron Team Online Contest May 2001787251

1876Centipede's MorningUral Regional School Programming Contest 2011390051

1327FusesAutumn School Contest 2004816652

2100Wedding DinnerUral FU Junior Championship 201691953

1243Divorce of the Seven DwarfsUSU Personal Contest 2003749655

1493One Step from HappinessAutumn School Contest 2006701155

1881Long problem statementUral Regional School Programming Contest 2011362155

1893A380NEERC 2011 Eastern Subregional360655

1110PowerBulgarian Online Contest September 2001713056

1349FarmSpring School Contest 2005747957

1607TaxiUSU Personal Contest 2008573357

1545HieroglyphsUral Championship 2007612759

1496SpammerAutumn School Contest 2006630861

1636Penalty TimeUSU Championship 2008493062

1837Isenbaev's NumberUral Championship 2011345962

1925British Scientists Save the WorldUral Regional School Programming Contest 2012269762

1196History ExamSpring School Contest 2002645663

1149Sinus Dances625664

1654Cipher MessageNEERC 2008 Eastern Subregional462865

1563BayanUSU Championship 2007518366

1723Sandro's BookUral Regional School Programming Contest 2009403366

1617Flat SpotsUral Championship 2008485567

2002Test TaskUral Regional School Programming Contest 2013198668

1131CopyingUSU Championship 2001578469

2035Another Dress RehearsalUral Regional School Programming Contest 2014155869

1025Democracy in DangerAutumn School Contest 20001755270

1224SpiralNEERC 2002 Central Subregional573171

1457Heating MainTimus Top Coders: Second Challenge571771

1083Factorials!!!Spring School Contest 20011471374

2005Taxi for ProgrammersUral Regional School Programming Contest 2013181774

1792Hamming CodeUral Regional School Programming Contest 2010308276

1935Tears of DrownedUral FU Championship 2012215977

2031Overturned NumbersUral Regional School Programming Contest 2014139477

1712Cipher GrilleNEERC 2009 Eastern Subregional343978

1502Domino DotsNEERC 2006 Eastern Subregional481279

2011Long StatementUral Regional School Programming Contest 2013168680

1106Two TeamsTetrahedron Team Online Contest May 2001489581

1139City BlocksNEERC 2001 Central Subregional494581

2056ScholarshipUral Championship 2015113681

1194HandshakesSpring School Contest 2002494282

1638BookwormUSU Championship 2008372282

1119MetroAutumn School Contest 2001481183

1290SabotageSpring School Contest 2004505183

2068Game of NutsUral Regional School Programming Contest 201594883

1404Easy to Hack!Autumn School Contest 2005507284

1120Sum of Sequential NumbersAutumn School Contest 2001472585

1180Stone GameUSU Personal Contest 2002460188

1146Maximum SumDSAP Vietnam Online Contest November 2001442391

1005Stone PileUSU Championship 19971352592

1297PalindromeSpring School Contest 2004455392

1510OrderNEERC 2006 Eastern Subregional413292

1601AntiCAPSUSU Personal Contest 2008356492

1161StripiesNEERC 2001 Northern Subregional429694

1902Neo-VeniceUral Championship 2012177994

2025Line FightingUral Regional School Programming Contest 2014111995

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001412796

1446Sorting HatUral Championship 2006425596

16421D MazeAutumn School Contest 2008316496

1796Amusement ParkUral Regional School Programming Contest 2010242796

1009K-based NumbersUSU Championship 19971279097

1370MagicianUral Championship 2005. Round 2437397

1203Scientific ConferenceUSU Local Contest. March 2002414598

1644A Whole Lot of WalnutsAutumn School Contest 2008310398

2033DevicesUral Regional School Programming Contest 2014108498

1731DillUral Regional School Programming Contest 2009271399

1786Sandro's BiographyUral Regional School Programming Contest 20102338100

1118Nontrivial NumbersAutumn School Contest 20013912102

1136ParliamentNEERC 2001 Central Subregional3929102

2010Sasha the Young GrandmasterUral Regional School Programming Contest 20131320102

1214Strange ProcedureAutumn School Contest 20023983103

1020RopeAutumn School Contest 200011853104

1296HyperjumpSpring School Contest 20044010104

1014Product of DigitsUSU Local Contest. 199911778105

1228ArrayNEERC 2002 Central Subregional3900105

2018The Debut AlbumNEERC 2014 Eastern Subregional1020106

1330IntervalsAutumn School Contest 20043929108

1573AlchemyAutumn School Contest 20073159108

1777AnindilyakwaUral SU Championship 20102136109

1126Magnetic StormsUSU Championship 20013619111

1192Ball in a DreamSpring School Contest 20023591112

1079MaximumWinter Mathematical Festival Varna 20019702113

1082Gaby IvanushkaSpring School Contest 20019453115

1226esreveR redrONEERC 2002 Central Subregional3543115

1353Milliard Vasya's FunctionSpring School Contest 20053650116

1086CryptographySpring School Contest 20019336117

1582BookmakersNEERC 2007 Eastern Subregional2927117

1044Lucky Tickets. Easy!USU Championship 200010351118

1219Symbolic SequenceUSU Championship 20023418120

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional892120

1260Nudnik PhotographerAutumn School Contest 20033422121

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023304122

1711Code NamesNEERC 2009 Eastern Subregional2199122

1123SalaryAutumn School Contest 20013253123

1336Problem of Ben BetsalelAutumn School Contest 20043346126

1283DwarfUSU Personal Contest 20043300127

2000Grand Theft Array VUral Regional School Programming Contest 20131058127

1683FridgeUSU Personal Contest 20092249129

1688Team.GOV!USU Personal Contest 20092251129

1982Electrification PlanUral FU Championship 20131053130

1725Sold Out!Ural Regional School Programming Contest 20092015133

1868Prediction ContestUral FU Championship 20111495133

1352Mersenne PrimesSpring School Contest 20053167134

1022Genealogical TreeAutumn School Contest 20009098136

1402CocktailsAutumn School Contest 20053081139

1021Sacrament of the SumAutumn School Contest 20008855140

1964Chinese DialectsUral FU Personal Contest 20131047140

1222Chernobyl’ EaglesUSU Championship 20022902141

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101646141

1740Deer is Better!USU Championship 20091859143

1931Excellent TeamUral FU Championship 20121153143

1612Tram ForumUral Championship 20082246144

1026Questions and AnswersAutumn School Contest 20008496145

1142RelationsDSAP Vietnam Online Contest November 20012749146

1576Telephone TariffsAutumn School Contest 20072352146

1084Goat in the GardenSpring School Contest 20017399147

1178Akbardin’s RoadsUSU Personal Contest 20022742147

2102Michael and CryptographyUral FU Junior Championship 2016325147

1864Get-Together at Den'sUral FU Championship 20111344148

2069Hard RockUral Regional School Programming Contest 2015526148

1167Bicolored HorsesRomanian Online Contest December 20012699149

1821BiathlonUSU Personal Contest 20111461149

2073Log FilesUral Regional School Programming Contest 2015522149

1572Yekaterinozavodsk Great WellAutumn School Contest 20072277150

1984Dummy GuyUral FU Championship 2013905150

1210Kind SpiritsAutumn School Contest 20022649154

1306Sequence MedianUral Championship 19982678156

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional868156

1073Square CountryUSU Personal Contest 20017088157

1709Penguin-AviaUral Championship 20091824157

1295Crazy NotionsSpring School Contest 20042623159

1756One and a Half DiggersUSU Personal Contest 20101588159

1017StaircasesUSU Local Contest. 19997726160

1280Topological SortingNEERC 2003 Central Subregional2578161

1354Palindrome. Again PalindromeSpring School Contest 20052628161

1135RecruitsNEERC 2001 Central Subregional2446164

1586Threeprime NumbersNEERC 2007 Eastern Subregional2078164

1613For Fans of StatisticsUral Championship 20081974164

1157Young TilerUral Championship 2001. Round 22427165

1506Columns of NumbersNEERC 2006 Eastern Subregional2309165

1272Non-Yekaterinburg SubwayUSU Championship 20032505166

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1768167

1846GCD 2010Petrozavodsk Summer 2010. USU Contest1198168

2091Natural SelectionUral FU Personal Contest 2014343168

1874Football GoalUral Regional School Programming Contest 20111172169

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional985169

1213Cockroaches!Autumn School Contest 20022399170

1878Rubinchik's CubeUral Regional School Programming Contest 20111170170

1012K-based Numbers. Version 27174172

1640Circle of WinterAutumn School Contest 20081739174

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101337174

1800Murphy's LawNEERC 2010 Eastern Subregional1301177

1335White ThesisAutumn School Contest 20042373178

1413Mars JumperUSU Championship 20052385178

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091494178

1193Queue at the ExamSpring School Contest 20022248179

1685OrthographyUSU Personal Contest 20091621179

1769Old Ural LegendUral Championship 20101391179

1134CardsNEERC 2001 Central Subregional2230180

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional923180

1930Ivan's CarUral Regional School Programming Contest 2012922180

1102Strange DialogTetrahedron Team Online Contest May 20012198181

1944Record of the Attack at the OrbitUral FU Personal Contest 2012881181

1048Superlong SumsUSU Local Contest. March 20006535184

1207Median on the PlaneUSU Local Contest. March 20022191184

1789Searching for the DodecahedronUral Regional School Programming Contest 20101257184

1133Fibonacci SequenceNEERC 2001 Central Subregional2162185

1152False MirrorsUral Championship 2001. Round 22163185

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015416187

1114BoxesBulgarian Online Contest September 20012122188

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional568188

1645Ski RaceAutumn School Contest 20081594189

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1573192

1869New Year CruiseUral FU Championship 20111036192

1208Legendary Teams ContestUSU Local Contest. March 20022087193

1423String TaleTimus Top Coders: First Challenge2133193

1164FillwordNEERC 2001 Northern Subregional2065194

2070Interesting NumbersUral Regional School Programming Contest 2015400194

2065Different SumsUral Regional School Programming Contest 2015398195

2095ScrumUral FU Personal Contest 2014293195

2105Alice and Bob are on BikesUral FU Junior Championship 2016239197

1112CoverBulgarian Online Contest September 20012003199

1138Integer PercentageNEERC 2001 Central Subregional2009199

1680The First NonqualifyingUSU Personal Contest 20091449200

1885Passenger ComfortNEERC 2011 Eastern Subregional989200

1023ButtonsAutumn School Contest 20006132201

1348Goat in the Garden 2Spring School Contest 20052107201

1494MonobilliardsAutumn School Contest 20061904201

1987Nested SegmentsUral FU Championship 2013671202

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional524204

2098Lada PrioraUral FU Personal Contest 2014275208

1002Phone NumbersCentral European Olympiad in Informatics 19995854212

1490Fire CircleAutumn School Contest 20061791213

1249Ancient NecropolisUSU Local Contest. March 20031919214

1183Brackets SequenceNEERC 20011875215

1635Mnemonics and PalindromesUSU Championship 20081411215

1515CashmasterTimus Top Coders: Third Challenge1721218

1052Rabbit HuntUSU Local Contest. March 20005449221

1491Unreal StoryAutumn School Contest 20061727221

1242WerewolfUSU Personal Contest 20031822225

1333Genie Bomber 2Autumn School Contest 20041870225

1011ConductorsUSU Championship 19975478226

1125HopscotchUSU Championship 20011763227

1795Husband in a ShopUral Regional School Programming Contest 20101021227

1033LabyrinthUral Championship 19995375229

1737Mnemonics and Palindromes 3USU Championship 20091156229

2024Adventure TimeUral Regional School Programming Contest 2014460229

1204IdempotentsUSU Local Contest. March 20021746231

1355Bald Spot RevisitedSpring School Contest 20051816233

1049Brave BalloonistsUSU Local Contest. March 20005132235

1303Minimal CoverageUral Championship 19981777235

1122GameAutumn School Contest 20011690236

1150Page NumbersUral Championship 2001. Round 21680238

1205By the Underground or by Foot?USU Local Contest. March 20021692238

1590Bacon’s CipherNEERC 2007 Eastern Subregional1413240

2067Friends and BerriesUral Regional School Programming Contest 2015321240

1191Catch the thief!Spring School Contest 20021666242

1247Check a SequenceUSU Personal Contest 20031681244

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1737245

1889Airport AnnouncementsNEERC 2011 Eastern Subregional804245

1108HeritageBulgarian Online Contest September 20011624246

1826MinefieldUSU Personal Contest 2011878247

1603EruditeUSU Personal Contest 20081314248

1922Superhero TeamUral Regional School Programming Contest 2012665248

1200Horns and HoofsUSU Local Contest. March 20021619249

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1533251

1113JeepBulgarian Online Contest September 20011584252

1013K-based Numbers. Version 3430254

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014317254

1109ConferenceBulgarian Online Contest September 20011570254

1433DiamondsUSU Personal Contest 20061613254

1658Sum of DigitsNEERC 2008 Eastern Subregional1174256

1298KnightSpring School Contest 20041623257

1080Map ColoringWinter Mathematical Festival Varna 20014244258

1195Ouths and CrossesSpring School Contest 20021556259

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1417259

1010Discrete FunctionUSTU PhysTech Cup 20004765260

2003Simple MagicUral Regional School Programming Contest 2013511261

1718RejudgeNEERC 2009 Eastern Subregional1013263

2034CaravansUral Regional School Programming Contest 2014396265

1028StarsUral Championship 19994626266

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031535267

1684Jack's Last WordUSU Personal Contest 20091078268

1087The Time to Take StonesSpring School Contest 20014031270

1998The old PadawanNEERC 2013 Eastern Subregional497270

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest946271

1779The Great TeamUral SU Championship 2010853272

1117HierarchyAutumn School Contest 20011457274

1244GentlemenUSU Personal Contest 20031496274

1741Communication FiendUSU Championship 2009963274

1726VisitsUral Regional School Programming Contest 2009964275

1823Ideal GasUSU Personal Contest 2011786276

1179Numbers in TextUSU Personal Contest 20021451277

1211Collective GuaranteeAutumn School Contest 20021469277

1220StacksUSU Championship 20021468277

1047Simple CalculationsUSU Local Contest. March 20004273282

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1364282

1537EntsUSU Personal Contest 20071293283

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012580284

1501Sense of BeautyNEERC 2006 Eastern Subregional1332285

1981Parallel and PerpendicularUral FU Championship 2013469287

1018Binary Apple TreeUSU Local Contest. 19994262290

1032Find a MultipleUral Championship 19993688291

1024PermutationsAutumn School Contest 20004201294

1184Cable MasterNEERC 20011364295

1377Lara CroftUral Championship 2005. Round 11441295

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest867295

2021Scarily interesting!NEERC 2014 Eastern Subregional357296

1753BookshelfUSU Personal Contest 2010846297

1933Guns for Battle!Ural FU Championship 2012550297

1497Cutting a SquareAutumn School Contest 20061279298

2104Game with a StripUral FU Junior Championship 2016155298

1036Lucky Tickets4117299

1934Black SpotUral FU Championship 2012547299

1053PinocchioNEERC 2000 Central Subregional4000301

1551Sumo TournamentUral Championship 20071190303

1215Exactness of Projectile HitAutumn School Contest 20021329306

1124MosaicUSU Championship 20011290309

1989SubpalindromesUral FU Championship 2013435309

1127Colored BricksUSU Championship 20011288310

1137Bus RoutesNEERC 2001 Central Subregional1290310

1116Piecewise Constant FunctionAutumn School Contest 20011274313

1153SupercomputerUral Championship 2001. Round 21277313

1190Bar of ChocolateSpring School Contest 20021284313

1521War Games 2Timus Top Coders: Third Challenge1196313

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional732313

1992CVSNEERC 2013 Eastern Subregional425315

2108Oleg and Little PoniesUral FU Junior Championship 2016146315

1227Rally ChampionshipNEERC 2002 Central Subregional1288316

1294Mars SatellitesSpring School Contest 20041315317

1588JamaicaNEERC 2007 Eastern Subregional1062319

1793Tray 2Ural Regional School Programming Contest 2010714323

1320Graph DecompositionUral Championship 2004. Round 21289324

1517Freedom of ChoiceTimus Top Coders: Third Challenge1154324

1941Scary Martian WordUral FU Personal Contest 2012488325

1008Image EncodingUSTU PhysTech Cup 20003774328

1302Delta-waveUral Championship 19981269328

1121BranchesAutumn School Contest 20011213329

1185WallNEERC 20011221329

2046The First Day at SchoolUral Championship 2015271329

1450Russian PipelinesTimus Top Coders: Second Challenge1218330

1029MinistryUral Championship 19993228332

2063Black and WhiteUral Regional School Programming Contest 2015229333

1346Intervals of MonotonicityUSU Championship 20041263334

1604Country of FoolsUSU Personal Contest 2008974334

1160NetworkNEERC 2001 Northern Subregional1207337

1218Episode N-th: The Jedi TournamentUSU Championship 20021208337

1406Next NumberAutumn School Contest 20051260337

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest850337

2062Ambitious ExperimentUral Regional School Programming Contest 2015226337

1904The Lessons of the PastUral Championship 2012488339

1156Two RoundsUral Championship 2001. Round 21174340

1201Which Day Is It?USU Local Contest. March 20021181340

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014306340

1223Chernobyl’ Eagle on a RoofUSU Championship 20021193341

1060Flip GameNEERC 20003314344

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest1062345

1648YachtsAutumn School Contest 2008869346

1282Game TreeNEERC 2003 Central Subregional1181350

1651Shortest SubchainNEERC 2008 Eastern Subregional856350

1246Tethered DogUSU Personal Contest 20031165351

1431DiplomasUSU Personal Contest 20061161352

1261TipsAutumn School Contest 20031171353

1031Railway TicketsUral Championship 19993471354

1090In the Army NowUSU Local Contest. March 20012920354

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest714358

1495One-two, One-two 2Autumn School Contest 20061057360

1140Swamp IncidentNEERC 2001 Central Subregional1106361

1483Table FootballUSU Championship 20061058361

1262Pseudo-Roman NumberAutumn School Contest 20031141362

1292Mars Space StationsSpring School Contest 20041146363

1007Code WordsUSU Championship 19973391365

1574Mathematicians and bracketsAutumn School Contest 2007925368

2078Bowling gameUral Championship 2016158368

1356Something EasierSpring School Contest 20051144369

1078SegmentsWinter Mathematical Festival Varna 20012958370

1403CourierAutumn School Contest 20051147370

1141RSA Attack1071372

1828Approximation by a ProgressionUSU Personal Contest 2011580372

2026Dean and ScheduleUral Regional School Programming Contest 2014278373

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional357374

1176HyperchannelsUSU Personal Contest 20021070375

1854Negotiations with ParthiansPetrozavodsk Summer 2011. Ural SU Team.GOV Contest528376

1901Space ElevatorsUral Championship 2012439376

1039Anniversary PartyUSU Championship 20003223378

1055CombinationsNEERC 2000 Central Subregional3176378

2047MathsUral Championship 2015232382

1003ParityCentral European Olympiad in Informatics 19993239383

1259How to Become Star?Autumn School Contest 20031072385

1279WarehouseNEERC 2003 Central Subregional1075385

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional508385

1229Strong BrickworkNEERC 2002 Central Subregional1052386

1287Mars CanalsUSU Personal Contest 20041070388

1783Nuclear Arms RaceUral SU Championship 2010594388

1759Long-LiversUSU Personal Contest 2010644389

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional269390

1289One Way TicketUSU Personal Contest 20041062391

1427SMSTimus Top Coders: First Challenge1046392

2030Awesome Backup SystemUral Regional School Programming Contest 2014264393

1489Points on a ParallelepipedAutumn School Contest 2006965394

1111SquaresBulgarian Online Contest September 20011004396

1115ShipsBulgarian Online Contest September 20011003396

1407One-two, One-twoAutumn School Contest 20051072396

1963KiteUral FU Personal Contest 2013363396

1562GM-pineappleUSU Championship 2007858397

1343Fairy TaleUSU Championship 20041059398

1217Unlucky TicketsUSU Championship 20021017399

1995Illegal spicesNEERC 2013 Eastern Subregional333400

1631Drunk King 2USU Championship 2008747403

1923Scary PoliticsUral Regional School Programming Contest 2012406403

2109Tourism on MarsUral FU Junior Championship 2016112403

1350CanteenSpring School Contest 20051045404

1015Test the Difference!USU Local Contest. 19993046405

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest727405

1077Travelling Tours980406

2081Faulty dialUral Championship 2016141409

1774Barber of the Army of MagesUral SU Championship 2010561410

1860FiborialPetrozavodsk Summer 2011. Ural SU Team.GOV Contest484410

1107Warehouse ProblemTetrahedron Team Online Contest May 2001959412

1513Lemon TaleTimus Top Coders: Third Challenge905412

1732Ministry of TruthUSU Championship 2009637412

1094E-screenUSU Local Contest. March 20012500413

1221Malevich Strikes Back!USU Championship 2002981414

1252Sorting the TombstonesUSU Local Contest. March 2003988414

1291Gear-wheelsSpring School Contest 20041005414

1128Partition into GroupsUSU Championship 2001956416

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001958416

1602ElevatorUSU Personal Contest 2008776418

1507Difficult DecisionNEERC 2006 Eastern Subregional903419

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest242420

2099Space InvaderUral FU Personal Contest 2014131420

1571InterpretersUSU Championship 2007803424

1700AwakeningUral Championship 2009666426

1038Spell CheckerUSU Championship 20002850427

1480CouponsUSU Championship 2006889429

1181Cutting a Painted PolygonUSU Personal Contest 2002931430

1416ConfidentialUSU Championship 2005974433

1776Anniversary FireworkUral SU Championship 2010531433

1202Rectangles TravelUSU Local Contest. March 2002924434

1258PoolAutumn School Contest 2003951434

1519Formula 1Timus Top Coders: Third Challenge860434

1089Verification with a VocabularySpring School Contest 20012494435

2071Juice CocktailsUral Regional School Programming Contest 2015173435

1019Line PaintingUSU Local Contest. 19992818438

1410CrackUSU Championship 2005961439

1873GOV ChroniclesUral Regional School Programming Contest 2011445440

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014233443

1942Attack at the OrbitUral FU Personal Contest 2012354444

1129Door PaintingUSU Championship 2001892446

1900Brainwashing DeviceUral Championship 2012369446

1641DutiesAutumn School Contest 2008670447

1890Money out of Thin AirNEERC 2011 Eastern Subregional433450

1155TroubleduonsUral Championship 2001. Round 2883451

1238FoldingNEERC 2002894455

1643Attack of the Dark FortressAutumn School Contest 2008655457

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection311461

1051Simple Game on a GridUSU Local Contest. March 20002576467

1316Electronic AuctionUral Championship 2004. Round 1888468

1535The Hobbit or There and Back AgainUSU Personal Contest 2007778468

1728Curse on Team.GOVUral Regional School Programming Contest 2009563468

1326Bottle TapsUral Championship 2004. Round 2887469

1401GamersAutumn School Contest 2005902469

1189Pairs of IntegersNEERC 2001847473

1072RoutingUSU Personal Contest 20012333474

1273TieUSU Championship 2003867476

1430Crime and PunishmentTimus Top Coders: First Challenge856477

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest714478

1329Galactic HistoryAutumn School Contest 2004872480

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional473481

1091Tmutarakan ExamsUSU Local Contest. March 20012135483

1162Currency ExchangeNEERC 2001 Northern Subregional824483

1428Jedi RiddleTimus Top Coders: First Challenge846483

1236Decoding TaskNEERC 2002832488

1525PathPetrozavodsk Winter 2007. D.Gozman Contest746489

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional334489

1628White StreaksUSU Championship 2008613490

1103Pencils and CirclesTetrahedron Team Online Contest May 2001803491

1577E-mailAutumn School Contest 2007690491

1971Graphics SettingsUral Championship 2013282493

1322SpyUral Championship 2004. Round 2839495

1579Coat TransportationAutumn School Contest 2007681497

1439Battle with You-Know-WhoUral Championship 2006808499

1095Nikifor 3USU Local Contest. March 20012052502

1212BattleshipAutumn School Contest 2002803504

1414Astronomical DatabaseUSU Championship 2005836504


1182Team Them Up!NEERC 2001791506

1884Way to the UniversityUral Regional School Programming Contest 2011385506

1158Censored!NEERC 2001 Northern Subregional784508

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional513514

1870Zinium 2Ural FU Championship 2011379516

1871Seismic WavesUral FU Championship 2011378517

1045Funny GameUSU Local Contest. March 20002321518

1066GarlandNEERC 20002196518

1056Computer NetNEERC 2000 Central Subregional2315519

1980Road to InvestorUral Championship 2013267520

2080WalletUral Championship 2016108524

1314Chase in SubwayUral Championship 2004. Round 1790525

2074Timus problems classifierQualification of eastern subregional contest 2015123525

1069Prufer CodeUSU Personal Contest 20012103526

1334CheckersAutumn School Contest 2004796526

1366PresentsUral Championship 2005. Round 2801526

1729Dead Man's ChestUral Regional School Programming Contest 2009500526

1891Language OceanNEERC 2011 Eastern Subregional369526

1362Classmates 2Ural Championship 2005. Round 2800527

1600AirportUSU Personal Contest 2008614527

2064CaterpillarsUral Regional School Programming Contest 2015140530

1754Explosion in a PyramidUSU Personal Contest 2010468532

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014192532

1437Gasoline StationUSU Personal Contest 2006756538

2004Scientists from SpilkovoUral Regional School Programming Contest 2013241542

1400Cellular CharactersAutumn School Contest 2005778543

1465Pawn GamePetrozavodsk Winter 2006. USU Contest711543

1101Robot in the FieldTetrahedron Team Online Contest May 2001723544

1143Electric PathDSAP Vietnam Online Contest November 2001727546

1004Sightseeing TripCentral European Olympiad in Informatics 19992249551

2048HistoryUral Championship 2015158551

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014185552

2089Experienced coachUral Championship 2016102552

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005761553

2092BoleroUral FU Personal Contest 201497553

1650BillionairesNEERC 2008 Eastern Subregional536555

1534Football in GondorUSU Personal Contest 2007653556

1605Devil's SequenceUSU Personal Contest 2008579558

1027D++ AgainAutumn School Contest 20002197560

1448Lighting in HogwartsUral Championship 2006715563

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest178563

2009Canteen LineUral Regional School Programming Contest 2013230566

1172Ship RoutesRomanian Online Contest December 2001701567

1375Bill CleversUral Championship 2005. Round 1743569

1698Square Country 5Petrozavodsk Winter 2009. USU Contest499569

1085MeetingSpring School Contest 20011897571

1710Boris, You Are Wrong!Ural Championship 2009493572

2106DeserializationUral FU Junior Championship 201676572

1682Crazy ProfessorUSU Personal Contest 2009498573

1421Credit OperationsTimus Top Coders: First Challenge711574

1760Infernal WorkUSU Personal Contest 2010431576

1928Another Ecology ProblemUral Regional School Programming Contest 2012280578

1064Binary SearchNEERC 20001963579

1071Nikifor 2USU Personal Contest 20011908579

1550Dean's Pyramid 3Ural Championship 2007616580

1592Chinese WatchesNEERC 2007 Eastern Subregional579581

1713Key SubstringsNEERC 2009 Eastern Subregional452582

1061Buffer ManagerNEERC 20001951583

1803The Czechs' RiflesNEERC 2010 Eastern Subregional389583

1325DirtUral Championship 2004. Round 2708586

1822Hugo II's WarUSU Personal Contest 2011364587

1838Samurai's StrokeUral Championship 2011357588

1966Cycling RoadsUral FU Personal Contest 2013240590

1358CablesSpring School Contest 2005711591

2060Subpalindrome pairsPalindromic Contest 137593

1067Disk TreeNEERC 20001912594

1706Cipher Message 2Ural Championship 2009472597

1070Local TimeUSU Personal Contest 20011849598


1445Christmas giftsUral Championship 2006673598

1059ExpressionNEERC 2000 Central Subregional2004599

1659Regular TrianglesNEERC 2008 Eastern Subregional496599

1962In Chinese RestaurantUral FU Personal Contest 2013236600

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional171600

1701Ostap and PartnersUral Championship 2009466604

1806Mobile TelegraphsNEERC 2010 Eastern Subregional374605

1690Army of MagesPetrozavodsk Winter 2009. USU Contest468606

1309DisputeUral Championship 2004. Round 1680609

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest552616

1939First SealUral FU Championship 2012260617

1767The House of Doctor DeeUral Championship 2010395621

1371Cargo AgencyUral Championship 2005. Round 1674626

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest486627

1054Hanoi TowerNEERC 2000 Central Subregional1907629

1332Genie BomberAutumn School Contest 2004664629

1542AutocompletionUral Championship 2007562635

1866Poetic FootUral FU Championship 2011303641

1990PodracingNEERC 2013 Eastern Subregional204641


1248Sequence SumUSU Personal Contest 2003631643

1254Die HardUSU Local Contest. March 2003631644

1452Pascal vs. C++Timus Top Coders: Second Challenge619644

1892Morning in KoltsovoNEERC 2011 Eastern Subregional299645

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009402651

1234BricksNEERC 2002618654

1174Weird PermutationsRomanian Online Contest December 2001605656

1253NecrologuesUSU Local Contest. March 2003619656

1564Counting OnesUSU Championship 2007513659

1861Graveyard in DeyjaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest297660

1500Pass LicensesNEERC 2006 Eastern Subregional568662

1903Unidentified ShipsUral Championship 2012245662

1606SlalomUSU Personal Contest 2008486663

1096Get the Right Route Plate!USU Local Contest. March 20011550664

1186Chemical ReactionsNEERC 2001600664

1943Space RummyUral FU Personal Contest 2012231671

1132Square Root589672

1961Cantonese DialectUral FU Personal Contest 2013209674

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional239676

1088Ilya MurometzSpring School Contest 20011597678

1443RailsUral Championship 2006592678

1286Starship TravelUSU Personal Contest 2004607680

1274Fractional ArithmeticNEERC 2003 Central Subregional603681

1772Ski-Trails for RobotsUral Championship 2010357685

1940Not So Simple YearsUral FU Championship 2012233685

1633HippogriffsUSU Championship 2008434688

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest558690

1168Radio StationsRomanian Online Contest December 2001572693

1755CakeUSU Personal Contest 2010357693

1440Training ScheduleUral Championship 2006576697

1057Amount of DegreesNEERC 2000 Central Subregional1716698

1994The Emperor's planNEERC 2013 Eastern Subregional186699

1611DecimationUral Championship 2008453703

1250Sea BurialUSU Local Contest. March 2003576704

1305Convex HullUral Championship 1998587704

1230Introspective ProgramNEERC 2002 Central Subregional570707

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest537707

1484Film RatingUSU Championship 2006534708

2008SwiftyUral Regional School Programming Contest 2013182708

1159FenceNEERC 2001 Northern Subregional558710

1872Spacious OfficeUral FU Championship 2011272711

1932The Secret of IdentifierUral FU Championship 2012224711

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest591712

1301Cube in LabyrinthUral Championship 1998575718

1773Metro to Every HomeUral Championship 2010340718

1629TripUSU Championship 2008413722

1169PairsRomanian Online Contest December 2001546725

1832Arirang ShowUral Championship 2011287726

1825Ifrit Bomber 2USU Personal Contest 2011292727

1034Queens in Peaceful PositionsUral Championship 19991683728

1780Gray CodeUral SU Championship 2010311730

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection193730

1716Alternative SolutionNEERC 2009 Eastern Subregional358731

1405Goat in the Garden 5Autumn School Contest 2005573734

1830Help in the RNOSUral Championship 2011284734

1775Space BowlingUral SU Championship 2010309735

1037Memory ManagementUSU Championship 20001651736

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012216742

1593Square Country. Version 2383747

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional215748

1235Cricket FieldNEERC 2002537751

1016Cube on the WalkUSU Local Contest. 19991633754

1424MinibusTimus Top Coders: First Challenge537756

1614National Project “Trams”Ural Championship 2008420757

1986Paul’s SaladsUral FU Championship 2013170765

1875Angry BirdsUral Regional School Programming Contest 2011251766

1392Dreaming of Stars546770

1646Godzilla Strikes Back!Autumn School Contest 2008382775

1647Divide an Island!Autumn School Contest 2008382775

1512ZiniumTimus Top Coders: Third Challenge476776

2103Corporate MailUral FU Junior Championship 201653780

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional287783

1974Similar TunesUral Championship 2013174783

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest125784

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest430786

1379Cups TransportationUral Championship 2005. Round 1534787

1988Planet Ocean LandingUral FU Championship 2013165787

1042Central HeatingUSU Championship 20001537790

2110Remove or MaximizeUral FU Junior Championship 201652793

1276TrainNEERC 2003 Central Subregional516794

1587Flying PigNEERC 2007 Eastern Subregional421794

1268Little ChuUSU Championship 2003512799

1689Fisherman and BarbellUSU Personal Contest 2009353802

1105Observers ColoringTetrahedron Team Online Contest May 2001486804

1323ClassmatesUral Championship 2004. Round 2512805

1738Computer SecurityUSU Championship 2009321806

1996Cipher Message 3NEERC 2013 Eastern Subregional160806

1456Jedi Riddle 2Timus Top Coders: Second Challenge492807

1030TitanicUral Championship 19991517808

1269Obscene Words FilterUSU Championship 2003504812

1147Shaping RegionsDSAP Vietnam Online Contest November 2001481820

1277Cops and ThievesNEERC 2003 Central Subregional499820

1547Password SearchUral Championship 2007432821

1720Summit Online JudgeNEERC 2009 Eastern Subregional317823

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest459825

1436BillboardUSU Personal Contest 2006484834

1486Equal SquaresUSU Championship 2006452834

1705Gangster HaresUral Championship 2009333839

1165SubnumberNEERC 2001 Northern Subregional470840

1342EnterpriseUSU Championship 2004494844

1927Herbs and MagicUral Regional School Programming Contest 2012186855

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest447857

2052Physical EducationUral Championship 201598857

1936RoshamboUral FU Championship 2012183862

1373Pictura ex MachinaUral Championship 2005. Round 1486863

1578Mammoth HuntAutumn School Contest 2007387866

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest248868

2093All Roads Lead to SnowdriftUral FU Personal Contest 201458870

1154Mages ContestUral Championship 2001. Round 2453871

1498Stroke at Full SpeedAutumn School Contest 2006429876

2017Best of a bad lotNEERC 2014 Eastern Subregional114876

1824Ifrit BomberUSU Personal Contest 2011240878

1006Square FramesUSU Championship 19971404879

1715Another Ball KillerNEERC 2009 Eastern Subregional296879

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest407887

1970皇后像廣場Ural FU Personal Contest 2013156889

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest281890

1905Travel in TimeUral Championship 2012179893

1324Extra SpacesUral Championship 2004. Round 2459896

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest313897

1630TalismanUSU Championship 2008330898

1580Dean's DebtsAutumn School Contest 2007372900

1237Evacuation PlanNEERC 2002446902

1233Amusing NumbersNEERC 2002445903

1245PicturesUSU Personal Contest 2003447903

1608Lucky Tickets 2008Ural Championship 2008348910

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest274911

1175Strange SequenceUSU Personal Contest 2002433913

1921Chaos and OrderUral Regional School Programming Contest 2012173916

1364LaraKillerUral Championship 2005. Round 2453921

1285Thread in a HyperspaceUSU Personal Contest 2004443926

1761Binary PalindromeUSU Personal Contest 2010264928

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest323934

1965Pear TreesUral FU Personal Contest 2013148934

1422FirefliesTimus Top Coders: First Challenge432936

1575Yekaterinburg Subway 2Autumn School Contest 2007356939

1827Indigenous WarsUSU Personal Contest 2011221950

1836Babel FishUral Championship 2011217950

1278“… Connecting People”NEERC 2003 Central Subregional429951

1398Bishop and Pawn384953

1863Peaceful AtomUral FU Championship 2011200955

1949The Best Picture in the GalaxyUral FU Personal Contest 2012159957

1339BabiesUSU Championship 2004434959

1730ManBearPigUral Regional School Programming Contest 2009269962

1948The Robot on the LineUral FU Personal Contest 2012158962

1591Abstract ThinkingNEERC 2007 Eastern Subregional344967

1784RoundersUral SU Championship 2010232969

1937Davy Jones’s OrganUral FU Championship 2012161973

1040Airline CompanyUSU Championship 20001245974

1451Beerhouse TaleTimus Top Coders: Second Challenge406974

1569Networking the “Iset”USU Championship 2007342979

1435Financial ErrorUSU Personal Contest 2006410980

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest292980

1976Game OptimizationUral Championship 2013137980

1130Nikifor's WalkUSU Championship 2001400981

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest341986

1418Military StoryUSU Championship 2005422987

1907Coffee and BunsUral Championship 2012161987

1979Resources DistributionUral Championship 2013135993

1883Ent's BirthdayUral Regional School Programming Contest 2011191995

1331VladislavaAutumn School Contest 2004415997

1887Frequent Flyer CardNEERC 2011 Eastern Subregional1891002

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Dandelion Contest951008

1768Circular StringsUral Championship 20102361022

1539Intelligence DataUSU Personal Contest 20073501024

1857Alice and BandersnatchPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1861033

1075Thread in a SpaceUSU Personal Contest 200110641034

1173Lazy SnailRomanian Online Contest December 20013781039

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3671039

1518Jedi Riddle 3Timus Top Coders: Third Challenge3531039

1983Nectar GatheringUral FU Championship 20131221043

1570Eating HighUSU Championship 20073201044

2055Urban GeographyUral Championship 2015781051

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2631061

1151RadiobeaconsUral Championship 2001. Round 23691064

1434Buses in VasyukiUSU Personal Contest 20063711081

1791Uncle Styopa and BusesUral Regional School Programming Contest 20102061082

1317HailUral Championship 2004. Round 23781084

1862Very Wealthy MoleUral FU Championship 20111751085

1341DeviceUSU Championship 20043811089

1447Portkey NetworkUral Championship 20063651089

1722Observation DeckUral Regional School Programming Contest 20092361091

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2271092

1879GOV-internship 2Ural Regional School Programming Contest 20111731093

1444ElephpotamusUral Championship 20063631095

1687Numismatics for FunUSU Personal Contest 20092551099

1790Searching for the TruthUral Regional School Programming Contest 20102011108

1968Glass PyramidUral FU Personal Contest 20131231109

2097Snowboarding on SpilnayaUral FU Personal Contest 2014431116

1627JoinPetrozavodsk Winter 2008. ITMO Contest2671123

1540Battle for the RingUSU Personal Contest 20073171127

1595Perfect Sequence2381136

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3281144

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1671144

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2481156

1736Chinese HockeyUSU Championship 20092201160

1511Fiscal OperationsTimus Top Coders: Third Challenge3151161

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3581164

1533Fat HobbitsUSU Personal Contest 20073061166

2101Knight's ShieldUral FU Junior Championship 2016321171

1458War GamesTimus Top Coders: Second Challenge3351174

1544Classmates 3Ural Championship 20072991175

1408Polynomial MultiplicationAutumn School Contest 20053541176

1896War Games 2.1451177

1357Teakettle 1.0 for DummiesSpring School Contest 20053501183

2007Mutants versus MachinesUral Regional School Programming Contest 20131041192

1453QueenTimus Top Coders: Second Challenge3281198

2107Oppa Funcan StyleUral FU Junior Championship 2016311199

1393Average Common Prefix3421202

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2721214

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1571216

1538Towers of GuardUSU Personal Contest 20072921220

1359ConstructionSpring School Contest 20053391221

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest3101224

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest2011227

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest3051228

1307ArchiverUral Championship 2004. Round 13321229

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1721231

1310ACM DiagnosticsUral Championship 2004. Round 13311233

1099Work Scheduling7421247

1546Japanese SortingUral Championship 20072811247

1035Cross-stitchUral Championship 19999751250

1807Cartridges for MaximNEERC 2010 Eastern Subregional1761250

1766Humpty DumptyUral Championship 20101911251

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1241256

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2651258

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1681258

2085Magic ProgrammerUral Championship 2016391262

1487Chinese FootballUSU Championship 20062951263

1985Prime SquareUral FU Championship 2013981275

1171Lost in SpaceRomanian Online Contest December 20013051280

1321Floor IndicatorUral Championship 2004. Round 23181282

1946Chinese Hockey 3Ural FU Personal Contest 20121161283

1657Cube SnakeNEERC 2008 Eastern Subregional2261285

1669Universal WordPetrozavodsk Winter 2008. USU Contest2221285

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1981293

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2751298

1686Photovoltaic SpaceshipUSU Personal Contest 20092141300

1177Like ComparisonsUSU Personal Contest 20022991310

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1021323

1328FireballAutumn School Contest 20043101324

1360Philosophical DisputeUral Championship 2005. Round 23111329

1065FrontierNEERC 20008471333

1097Square Country 2USU Local Contest. March 20017661335

1050Preparing an ArticleUSU Local Contest. March 20008921339

2059Not common palindromesPalindromic Contest 551341

1281River BasinNEERC 2003 Central Subregional3001347

1441From the History of Gringotts BankUral Championship 20062931348

1947MeanderUral FU Personal Contest 20121091359

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2611365

1311Stable ConstructionUral Championship 2004. Round 12971369

1499KerchiefsAutumn School Contest 20062701373

1318LogarithmUral Championship 2004. Round 22941383

1449Credit Operations 2Timus Top Coders: Second Challenge2821387

1851GOV-internshipPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1361387

1419Maps of the Island WorldsUSU Championship 20052971389

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2141389

1240Heroes of Might and MagicNEERC 20022851392

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2551396

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Dandelion Contest651412

1345HTMLUSU Championship 20042901419

1299PsyloniansSpring School Contest 20042841428

1762Search for a Hiding-PlaceUSU Personal Contest 20101681428

1347BlogSpring School Contest 20052881430

1950Martian FarmlandsUral FU Personal Contest 20121031431

1265MirrorUSU Championship 20032791443

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection921452

1266Kirchhoff's LawUSU Championship 20032771454

1170DesertRomanian Online Contest December 20012661461

1412Autumn TideUSU Championship 20052781480

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1471480

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2501488

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1631496

1770The Party of Ural ChampionsUral Championship 20101581496

1251Cemetery ManagerUSU Local Contest. March 20032631512

1043Cover an ArcUSU Championship 20007981513

1568Train Car SortingUSU Championship 20072161524

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional991544

1886Trip 2NEERC 2011 Eastern Subregional1191546

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2651557

1241Inlay CuttersNEERC 20022541558

1488ACM PokerUSU Championship 20062351573

1337BureaucracyAutumn School Contest 20042571587

1565The Duel for ThreeUSU Championship 20072071587

1802Cube PuzzleNEERC 2010 Eastern Subregional1361592

20503D-modelingUral Championship 2015481595

1670AsteriskPetrozavodsk Summer 2008. USU Contest1751601

1908Brute-force SearchUral Championship 2012951608

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1131621

1485Football and LieUSU Championship 20062271626

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1721627

1764TranssibUral Championship 20101441633

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2001648

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection791664

1257HyphenationAutumn School Contest 20032401668

1583CheeseNEERC 2007 Eastern Subregional1941677

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest531681

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1661682

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1231684

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1651692

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1431692

1782Jack's New WordUral SU Championship 20101281698

1378Artificial IntelligenceUral Championship 2005. Round 12421699

1420Integer-Valued Complex DivisionUSU Championship 20052411699

1508Japanese PuzzleNEERC 2006 Eastern Subregional2151702

1707Hypnotoad's SecretUral Championship 20091581712

1338AutomobilesUSU Championship 20042381716

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2181718

1062TriathlonNEERC 20006491733

2096All InclusiveUral FU Personal Contest 2014241740

1516NostalgiaTimus Top Coders: Third Challenge2061746

1046Geometrical DreamsUSU Local Contest. March 20006751763

1734Endgame DatabaseUSU Championship 20091411767

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012171774

1425Queen 2Timus Top Coders: First Challenge2231775

2058100500 palidnromesPalindromic Contest 391778

1610CactusesUral Championship 20081711799

1503PolynomialNEERC 2006 Eastern Subregional2021806

1615Tram SolitaireUral Championship 20081701809

1841CablewaysPetrozavodsk Summer 2010. USU Contest1021813

1514National ParkTimus Top Coders: Third Challenge1971822

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1931822

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1521828

1831Tsyfirkin's LessonUral Championship 20111081828

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest1011829

1492Vasya's Dad 2Autumn School Contest 20062001831

1781Clean CodeUral SU Championship 20101181831

1417Space Poker 2USU Championship 20052221838

1304ParallelepipedUral Championship 19982171850

1702CrossroadUral Championship 20091451856

1093DartsUSU Local Contest. March 20015471860

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1501864

1757Gold BarsUSU Personal Contest 20101261869

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1281876

1163ChapaevNEERC 2001 Northern Subregional2041884

2075Take care of your eyebrows!Qualification of eastern subregional contest 2015271887

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1481888

1397Points Game1941897

1703Robotic ArmUral Championship 20091411905

1148Building TowersDSAP Vietnam Online Contest November 20012011909

1532Lost in TranslationUSU Personal Contest 20071831909

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest961910

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest2131920

1839The MentaculusUral Championship 20111011944

1455Freedom of SpeechTimus Top Coders: Second Challenge1981947

1216Two Pawns and One KingUSU Championship 20022001952

1267Yekaterinburg SubwayUSU Championship 20032031959

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1041964

1187Statistical TroubleNEERC 20011951976

1315MDPAR and MIIARUral Championship 2004. Round 12011992

1634Spider MiteUSU Championship 20081431996

1541ChaseUSU Personal Contest 20071742003

1396Maximum. Version 21912004

1969Hong Kong TramUral FU Personal Contest 2013632021

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1902050

1041NikiforUSU Championship 20005842058

1977Energy WallUral Championship 2013602058

1978E-LiteUral Championship 2013602058

2083The Guardian of TraditionsUral Championship 2016202061

1188LibraryNEERC 20011862066

1063Domino PuzzleNEERC 20005422068

1074Very Short ProblemUSU Personal Contest 20015192100

1655Somali PiratesNEERC 2008 Eastern Subregional1342106

1288AstrolocationUSU Personal Contest 20041892108

1232Asteroid LandingNEERC 2002 Central Subregional1812147

1867NanotechnologiesUral FU Championship 2011832157

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional682157

1549Another Japanese PuzzleUral Championship 20071582161

1543Dance RevolutionUral Championship 20071572174

1504Good MannersNEERC 2006 Eastern Subregional1662175

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest922196

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21842199

2022Riding a ToadNEERC 2014 Eastern Subregional392218

1256Cemetery GuardUSU Local Contest. March 20031762219

1092TransversalUSU Local Contest. March 20014512247

1284Space PokerUSU Personal Contest 20041742280

1717Eligibility RulesNEERC 2009 Eastern Subregional1082280

1972Game TestingUral Championship 2013532286

2053BiologyUral Championship 2015302313

1270UnicubeUSU Championship 20031702318

1833Hopes of RowingUral Championship 2011832320

1481Winning ChancesUSU Championship 20061562321

1945Many-armed BrothersUral FU Personal Contest 2012592343

1652Banking CrisisNEERC 2008 Eastern Subregional1192350

1368Goat in the Garden 3Ural Championship 2005. Round 21712356

1850Space TourismPetrozavodsk Summer 2010. USU Contest762361

2084Technical debtUral Championship 2016162378

1895Steaks on BoardNEERC 2011 Eastern Subregional732402

1739FaryuksUSU Championship 20091012404

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Dandelion Contest342407

1882Old NokiaUral Regional School Programming Contest 2011732410

1835Swamp DoctorUral Championship 2011792424

1758Bald Spot Revisited 2USU Personal Contest 2010942444

2090Crossroads of DestinyUral FU Personal Contest 2014142466

1735Theft of the CenturyUSU Championship 2009982471

1798Fire Circle. Version 2242513

1275Knights of the Round TableNEERC 2003 Central Subregional1562515

1829Routing TablesUSU Personal Contest 2011772524

1454Rectangles 2Timus Top Coders: Second Challenge1502532

1599Winding Number222540

1300TaxesUral Championship 19981542561

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional952562

1520Empire Strikes BackTimus Top Coders: Third Challenge1372566

2051PhysicsUral Championship 2015262570

2087TrainsUral Championship 2016142576

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1232602

1609Tram TileUral Championship 20081152605

1308Dean's PyramidUral Championship 2004. Round 11502627

1694Killer WordsPetrozavodsk Winter 2009. USU Contest1002634

1865The Island of MärketUral FU Championship 2011662640

1704DemodulationUral Championship 2009982663

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest742666

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest1012687

1859Last Season of Team.GOVPetrozavodsk Summer 2011. Ural SU Team.GOV Contest652700

1312TrayUral Championship 2004. Round 11452712

2006Kirill the GardenerUral Regional School Programming Contest 2013402719

1239Ghost BustersNEERC 20021402738

1395Pascal vs. C++. Version 21372751

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1282803

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest932813

1505Oil TransferNEERC 2006 Eastern Subregional1262815

1566Triangular PostcardsUSU Championship 20071122824

1637Triangle Game 2USU Championship 2008982827

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional492852

1464LightPetrozavodsk Winter 2006. USU Contest1272860

1058ChocolateNEERC 2000 Central Subregional4062891

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest602901

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection412904

2079Memory leaksUral Championship 2016112944

1482Triangle GameUSU Championship 20061202964

141140 Islands KnightsUSU Championship 20051323003

2061OEIS A216264Palindromic Contest 193005

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection393023

1438Time Limit ExceededUSU Personal Contest 20061263028

1681Brother Bear's GardenUSU Personal Contest 2009863033

1367Top SecretUral Championship 2005. Round 21303047

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest853050

1856War and PeacePetrozavodsk Summer 2011. Ural SU Team.GOV Contest563068

1442Floo PowderUral Championship 20061233070

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest733119

1975Model of the EarthUral Championship 2013363131

1429BiscuitsTimus Top Coders: First Challenge1223133

1622EndspielPetrozavodsk Winter 2008. ITMO Contest893142

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest893142

1957MundialPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection373152

1858Magic CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest543164

1909Space ReconUral Championship 2012433186

2049ChemistryUral Championship 2015193191

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest603199

1466Magic SquarePetrozavodsk Winter 2006. USU Contest1113238

2086Find DenisUral Championship 201693254

2057Non-palidromic cuttingPalindromic Contest 163351

1166Funny Card GameNEERC 2001 Northern Subregional1143363

2088Nostalgic EveningUral Championship 201683363

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest213416

1597Chernobyl’ Eagle on a Roof. Version 2233418

1834Tennis RacketUral Championship 2011533424

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional393434

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest493441

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1143453

1616Square Country 4Ural Championship 2008833502

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection323527

1938Caribbean TriangleUral FU Championship 2012373542

1509Domino RecognitionNEERC 2006 Eastern Subregional983545

1778Chinese Hockey 2Ural SU Championship 2010563551

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest533555


1765Error 404Ural Championship 2010593643

2077ReductionsQualification of eastern subregional contest 201593675

1632LasersUSU Championship 2008733679

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest843681

1847ZamkadyePetrozavodsk Summer 2010. USU Contest453692

1733Forgotten TechnologyUSU Championship 2009623706

2042NikitaPetrozavodsk Summer 2014. Ural FU Dandelion Contest183782

1598DSA Attack193819

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest1013857

1967Programmer CasinoUral FU Personal Contest 2013283882

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest853894

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest893907

2094Thousand ImpsUral FU Personal Contest 201453945

2076VasianaQualification of eastern subregional contest 201574108

1973Location GeneratorUral Championship 2013254115

1661DodecahedronPetrozavodsk Winter 2008. USU Contest614200

1460WiresPetrozavodsk Winter 2006. USU Contest824259

1999The secret moduleNEERC 2013 Eastern Subregional224284

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest594322

2082PokerUral Championship 201644382

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest774446

1594Aztec Treasure534477

1344Gigantic TurnipUSU Championship 2004854480

1271Sailing DirectionsUSU Championship 2003824534

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Dandelion Contest134603

1797Summit Online Judge. Version 2274608

2054AstronomyUral Championship 2015104625

1340CucarachaUSU Championship 2004824626

2016Magic and ScienceNEERC 2014 Eastern Subregional134725

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest514750

1799Sasha and swag strings74767

1771A Deputy's MorningUral Championship 2010424834

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest544860

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest694896

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest534937

1801The Revolution CupNEERC 2010 Eastern Subregional374946

1365Testing CalculatorUral Championship 2005. Round 2764960

1763Expert FleaUral Championship 2010405028

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest755037

1426RectanglesTimus Top Coders: First Challenge725043

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest725222

1848Fly HuntPetrozavodsk Summer 2010. USU Contest285343

1372Death StarUral Championship 2005. Round 1685488

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest605525

1668Death Star 2Petrozavodsk Winter 2008. USU Contest425735

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest255785

1842Local RootsPetrozavodsk Summer 2010. USU Contest255801

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest405965

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest425981

1906The Lost CivilizationUral Championship 2012186030

1363HalftonesUral Championship 2005. Round 2596181

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest266221

1674Drunk KingPetrozavodsk Summer 2008. USU Contest376300

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional376452

1653Death ConveyorNEERC 2008 Eastern Subregional366592

1536Delights of Pipe-weedUSU Personal Contest 2007436953

1840Victim of AdvertisingUral Championship 2011207191

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest337233

1596Knight Mare157509

1432Twofold LuckUSU Personal Contest 2006437770

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest268225

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection78711

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest298872

1415Mobile LifeUSU Championship 2005388880

1376Dean's Pyramid 2Ural Championship 2005. Round 1388919

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest199992

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest3210195

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1910210

1399Economical Director2610424

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2111161

1374MisereUral Championship 2005. Round 12811266

1708Sum of Digits 2Ural Championship 20091511504

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2111933

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2213381

1369Cockroach RaceUral Championship 2005. Round 21914708

1548Sakura and StatisticsUral Championship 20071415125

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1616468

1589SokobanNEERC 2007 Eastern Subregional522813

1394Ships. Version 2626763