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Problem set


IDTitleSourceAuthorsDifficulty

1000A+B Problem7582517

1001Reverse Root2182617

1785Lost in LocalizationUral Regional School Programming Contest 20101301318

1293EniyaSpring School Contest 20042139720

1409Two GangstersAutumn School Contest 20052055721

2012About Grisha N.NEERC 2014 Eastern Subregional517021

1877Bicycle CodesUral Regional School Programming Contest 2011905322

2001Mathematicians and BerriesUral Regional School Programming Contest 2013489627

1264WorkdaysAutumn School Contest 20031487128

1820Ural SteaksUSU Personal Contest 2011769028

1787Turn for MEGAUral Regional School Programming Contest 2010806129

1197Lonesome KnightSpring School Contest 20021286031

1880Psych Up's EigenvaluesUral Regional School Programming Contest 2011612032

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional481934

1639Chocolate 2Autumn School Contest 2008851535

1924Four ImpsUral Regional School Programming Contest 2012456936

2066Simple ExpressionUral Regional School Programming Contest 2015214636

2023Donald is a postmanNEERC 2014 Eastern Subregional275039

1313Some Words about SportUral Championship 2004. Round 11045240

12091, 10, 100, 1000...Autumn School Contest 2002985641

1068Sum2708542

1225FlagsNEERC 2002 Central Subregional947943

1319HotelUral Championship 2004. Round 2966743

1567SMS-spamUSU Championship 2007790443

1581TeamworkAutumn School Contest 2007771844

1263ElectionsAutumn School Contest 2003873648

1585PenguinsNEERC 2007 Eastern Subregional714348

1991The battle near the swampNEERC 2013 Eastern Subregional276249

1100Final StandingsTetrahedron Team Online Contest May 2001781851

1876Centipede's MorningUral Regional School Programming Contest 2011385551

1327FusesAutumn School Contest 2004809052

1243Divorce of the Seven DwarfsUSU Personal Contest 2003743255

1493One Step from HappinessAutumn School Contest 2006695055

1881Long problem statementUral Regional School Programming Contest 2011358955

1893A380NEERC 2011 Eastern Subregional356455

1110PowerBulgarian Online Contest September 2001708356

1349FarmSpring School Contest 2005743957

1607TaxiUSU Personal Contest 2008569057

2100Wedding DinnerUral FU Junior Championship 201678559

1545HieroglyphsUral Championship 2007605460

1496SpammerAutumn School Contest 2006624961

1636Penalty TimeUSU Championship 2008487462

1837Isenbaev's NumberUral Championship 2011343062

1925British Scientists Save the WorldUral Regional School Programming Contest 2012266862

1196History ExamSpring School Contest 2002641363

1149Sinus Dances622564

1654Cipher MessageNEERC 2008 Eastern Subregional459666

1563BayanUSU Championship 2007512567

1617Flat SpotsUral Championship 2008479767

1723Sandro's BookUral Regional School Programming Contest 2009400167

2002Test TaskUral Regional School Programming Contest 2013195568

2035Another Dress RehearsalUral Regional School Programming Contest 2014152469

1131CopyingUSU Championship 2001574670

1025Democracy in DangerAutumn School Contest 20001745771

1224SpiralNEERC 2002 Central Subregional571171

1457Heating MainTimus Top Coders: Second Challenge568571

1083Factorials!!!Spring School Contest 20011462074

2005Taxi for ProgrammersUral Regional School Programming Contest 2013179075

1792Hamming CodeUral Regional School Programming Contest 2010305876

1935Tears of DrownedUral FU Championship 2012213177

2031Overturned NumbersUral Regional School Programming Contest 2014136677

1712Cipher GrilleNEERC 2009 Eastern Subregional342878

1502Domino DotsNEERC 2006 Eastern Subregional479279

2011Long StatementUral Regional School Programming Contest 2013166880

1106Two TeamsTetrahedron Team Online Contest May 2001487881

1139City BlocksNEERC 2001 Central Subregional492881

1194HandshakesSpring School Contest 2002493082

1638BookwormUSU Championship 2008369582

1290SabotageSpring School Contest 2004502983

2056ScholarshipUral Championship 2015108483

2068Game of NutsUral Regional School Programming Contest 201592483

1119MetroAutumn School Contest 2001478084

1404Easy to Hack!Autumn School Contest 2005505784

1120Sum of Sequential NumbersAutumn School Contest 2001470685

1180Stone GameUSU Personal Contest 2002459188

1297PalindromeSpring School Contest 2004461790

1146Maximum SumDSAP Vietnam Online Contest November 2001439591

1005Stone PileUSU Championship 19971341592

1601AntiCAPSUSU Personal Contest 2008355592

1510OrderNEERC 2006 Eastern Subregional411193

1161StripiesNEERC 2001 Northern Subregional428694

1902Neo-VeniceUral Championship 2012176894

1446Sorting HatUral Championship 2006423096

16421D MazeAutumn School Contest 2008315196

1796Amusement ParkUral Regional School Programming Contest 2010241996

1009K-based NumbersUSU Championship 19971273697

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001410497

1203Scientific ConferenceUSU Local Contest. March 2002410698

1370MagicianUral Championship 2005. Round 2433898

1644A Whole Lot of WalnutsAutumn School Contest 2008308698

2033DevicesUral Regional School Programming Contest 2014106998

1731DillUral Regional School Programming Contest 2009269999

2025Line FightingUral Regional School Programming Contest 2014106099

1786Sandro's BiographyUral Regional School Programming Contest 20102322100

1136ParliamentNEERC 2001 Central Subregional3917102

2010Sasha the Young GrandmasterUral Regional School Programming Contest 20131310102

1118Nontrivial NumbersAutumn School Contest 20013883103

1214Strange ProcedureAutumn School Contest 20023969103

1020RopeAutumn School Contest 200011805104

1014Product of DigitsUSU Local Contest. 199911724105

1228ArrayNEERC 2002 Central Subregional3890105

1296HyperjumpSpring School Contest 20043933106

2018The Debut AlbumNEERC 2014 Eastern Subregional1000106

1330IntervalsAutumn School Contest 20043902108

1573AlchemyAutumn School Contest 20073142109

1777AnindilyakwaUral SU Championship 20102126109

1126Magnetic StormsUSU Championship 20013598111

1192Ball in a DreamSpring School Contest 20023584112

1079MaximumWinter Mathematical Festival Varna 20019657113

1082Gaby IvanushkaSpring School Contest 20019421115

1226esreveR redrONEERC 2002 Central Subregional3531115

1582BookmakersNEERC 2007 Eastern Subregional2918116

1086CryptographySpring School Contest 20019271117

1353Milliard Vasya's FunctionSpring School Contest 20053621117

1044Lucky Tickets. Easy!USU Championship 200010319118

1219Symbolic SequenceUSU Championship 20023405120

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional880120

1711Code NamesNEERC 2009 Eastern Subregional2193121

1206Sum of Digits of the Sum of NumbersUSU Local Contest. March 20023293122

1260Nudnik PhotographerAutumn School Contest 20033390122

1123SalaryAutumn School Contest 20013238123

2000Grand Theft Array VUral Regional School Programming Contest 20131053126

1283DwarfUSU Personal Contest 20043286127

1336Problem of Ben BetsalelAutumn School Contest 20043328127

1683FridgeUSU Personal Contest 20092239129

1688Team.GOV!USU Personal Contest 20092239129

1982Electrification PlanUral FU Championship 20131040129

1725Sold Out!Ural Regional School Programming Contest 20092006132

1868Prediction ContestUral FU Championship 20111487133

1352Mersenne PrimesSpring School Contest 20053149134

1022Genealogical TreeAutumn School Contest 20009068136

1402CocktailsAutumn School Contest 20053064139

1964Chinese DialectsUral FU Personal Contest 20131036139

1021Sacrament of the SumAutumn School Contest 20008813140

1222Chernobyl’ EaglesUSU Championship 20022893141

1788On the Benefits of UmbrellasUral Regional School Programming Contest 20101638141

1740Deer is Better!USU Championship 20091843143

1931Excellent TeamUral FU Championship 20121142143

1612Tram ForumUral Championship 20082230145

1026Questions and AnswersAutumn School Contest 20008460146

1142RelationsDSAP Vietnam Online Contest November 20012739146

1576Telephone TariffsAutumn School Contest 20072329146

1084Goat in the GardenSpring School Contest 20017369147

1178Akbardin’s RoadsUSU Personal Contest 20022732147

2069Hard RockUral Regional School Programming Contest 2015519147

1864Get-Together at Den'sUral FU Championship 20111331148

1167Bicolored HorsesRomanian Online Contest December 20012688149

1821BiathlonUSU Personal Contest 20111451149

2073Log FilesUral Regional School Programming Contest 2015511149

1984Dummy GuyUral FU Championship 2013898150

1572Yekaterinozavodsk Great WellAutumn School Contest 20072264151

1210Kind SpiritsAutumn School Contest 20022641154

1306Sequence MedianUral Championship 19982669156

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional857156

1073Square CountryUSU Personal Contest 20017053157

1709Penguin-AviaUral Championship 20091814157

2102Michael and CryptographyUral FU Junior Championship 2016289158

1756One and a Half DiggersUSU Personal Contest 20101582159

1295Crazy NotionsSpring School Contest 20042614160

1017StaircasesUSU Local Contest. 19997678161

1280Topological SortingNEERC 2003 Central Subregional2568161

1354Palindrome. Again PalindromeSpring School Contest 20052612162

1135RecruitsNEERC 2001 Central Subregional2439164

1613For Fans of StatisticsUral Championship 20081968164

1157Young TilerUral Championship 2001. Round 22424165

1506Columns of NumbersNEERC 2006 Eastern Subregional2302165

1586Threeprime NumbersNEERC 2007 Eastern Subregional2055165

1272Non-Yekaterinburg SubwayUSU Championship 20032496166

2091Natural SelectionUral FU Personal Contest 2014333167

1671Anansi's CobwebPetrozavodsk Summer 2008. USU Contest1747168

1846GCD 2010Petrozavodsk Summer 2010. USU Contest1191168

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional980168

1874Football GoalUral Regional School Programming Contest 20111165169

1878Rubinchik's CubeUral Regional School Programming Contest 20111162169

1213Cockroaches!Autumn School Contest 20022396170

1012K-based Numbers. Version 27143173

1794Masterpieces of World ArchitectureUral Regional School Programming Contest 20101332173

1640Circle of WinterAutumn School Contest 20081726174

1800Murphy's LawNEERC 2010 Eastern Subregional1293177

1335White ThesisAutumn School Contest 20042367178

1413Mars JumperUSU Championship 20052375178

1685OrthographyUSU Personal Contest 20091615178

1727Znaika's Magic NumbersUral Regional School Programming Contest 20091489178

1134CardsNEERC 2001 Central Subregional2225179

1193Queue at the ExamSpring School Contest 20022241179

1769Old Ural LegendUral Championship 20101385179

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional918179

1930Ivan's CarUral Regional School Programming Contest 2012915179

1102Strange DialogTetrahedron Team Online Contest May 20012188181

1944Record of the Attack at the OrbitUral FU Personal Contest 2012875181

1048Superlong SumsUSU Local Contest. March 20006518184

1789Searching for the DodecahedronUral Regional School Programming Contest 20101253184

1133Fibonacci SequenceNEERC 2001 Central Subregional2157185

1207Median on the PlaneUSU Local Contest. March 20022168185

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional565186

1152False MirrorsUral Championship 2001. Round 22140187

2072Kirill the Gardener 3Ural Regional School Programming Contest 2015403188

1114BoxesBulgarian Online Contest September 20012104189

1645Ski RaceAutumn School Contest 20081579190

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1569191

1869New Year CruiseUral FU Championship 20111032191

1208Legendary Teams ContestUSU Local Contest. March 20022082193

1423String TaleTimus Top Coders: First Challenge2125193

2065Different SumsUral Regional School Programming Contest 2015392193

2095ScrumUral FU Personal Contest 2014286193

1164FillwordNEERC 2001 Northern Subregional2064194

2070Interesting NumbersUral Regional School Programming Contest 2015391194

1138Integer PercentageNEERC 2001 Central Subregional2008199

1680The First NonqualifyingUSU Personal Contest 20091445199

1885Passenger ComfortNEERC 2011 Eastern Subregional984199

1112CoverBulgarian Online Contest September 20011991200

1023ButtonsAutumn School Contest 20006110201

1348Goat in the Garden 2Spring School Contest 20052103201

1494MonobilliardsAutumn School Contest 20061886202

2105Alice and Bob are on BikesUral FU Junior Championship 2016224202

1987Nested SegmentsUral FU Championship 2013661203

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional517203

2098Lada PrioraUral FU Personal Contest 2014264209

1002Phone NumbersCentral European Olympiad in Informatics 19995835212

1490Fire CircleAutumn School Contest 20061785213

1249Ancient NecropolisUSU Local Contest. March 20031914214

1635Mnemonics and PalindromesUSU Championship 20081410214

1183Brackets SequenceNEERC 20011866215

1515CashmasterTimus Top Coders: Third Challenge1720217

1052Rabbit HuntUSU Local Contest. March 20005435221

1491Unreal StoryAutumn School Contest 20061717222

1242WerewolfUSU Personal Contest 20031815225

1011ConductorsUSU Championship 19975462226

1125HopscotchUSU Championship 20011760226

1333Genie Bomber 2Autumn School Contest 20041862226

1795Husband in a ShopUral Regional School Programming Contest 20101014227

2024Adventure TimeUral Regional School Programming Contest 2014456227

1737Mnemonics and Palindromes 3USU Championship 20091153228

1033LabyrinthUral Championship 19995362229

1204IdempotentsUSU Local Contest. March 20021740231

1355Bald Spot RevisitedSpring School Contest 20051807234

1049Brave BalloonistsUSU Local Contest. March 20005116235

1122GameAutumn School Contest 20011689236

1303Minimal CoverageUral Championship 19981762236

2067Friends and BerriesUral Regional School Programming Contest 2015317237

1205By the Underground or by Foot?USU Local Contest. March 20021688238

1150Page NumbersUral Championship 2001. Round 21668239

1191Catch the thief!Spring School Contest 20021666241

1889Airport AnnouncementsNEERC 2011 Eastern Subregional803243

1247Check a SequenceUSU Personal Contest 20031676244

1590Bacon’s CipherNEERC 2007 Eastern Subregional1387244

1826MinefieldUSU Personal Contest 2011878245

1108HeritageBulgarian Online Contest September 20011617246

1385Interesting NumberPetrozavodsk Summer 2005. Moscow+Ural Contest1729246

1922Superhero TeamUral Regional School Programming Contest 2012663247

1200Horns and HoofsUSU Local Contest. March 20021617248

1603EruditeUSU Personal Contest 20081312248

1113JeepBulgarian Online Contest September 20011579252

1471Distance in the TreePetrozavodsk Summer 2006. Ural+Orel Contest1519252

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014299254

1109ConferenceBulgarian Online Contest September 20011565254

1433DiamondsUSU Personal Contest 20061608254

1298KnightSpring School Contest 20041620257

1013K-based Numbers. Version 3416258

1080Map ColoringWinter Mathematical Festival Varna 20014234258

1195Ouths and CrossesSpring School Contest 20021553258

1658Sum of DigitsNEERC 2008 Eastern Subregional1162258

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1413259

1010Discrete FunctionUSTU PhysTech Cup 20004754260

2003Simple MagicUral Regional School Programming Contest 2013507260

1718RejudgeNEERC 2009 Eastern Subregional1008263

2034CaravansUral Regional School Programming Contest 2014392263

1028StarsUral Championship 19994613266

1255Graveyard of the Cosa NostraUSU Local Contest. March 20031527268

1684Jack's Last WordUSU Personal Contest 20091071268

1998The old PadawanNEERC 2013 Eastern Subregional493269

1087The Time to Take StonesSpring School Contest 20014019270

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest939271

1779The Great TeamUral SU Championship 2010849271

1823Ideal GasUSU Personal Contest 2011785274

1117HierarchyAutumn School Contest 20011449275

1244GentlemenUSU Personal Contest 20031486275

1179Numbers in TextUSU Personal Contest 20021451276

1741Communication FiendUSU Championship 2009951276

1211Collective GuaranteeAutumn School Contest 20021466277

1220StacksUSU Championship 20021466277

1726VisitsUral Regional School Programming Contest 2009949278

1047Simple CalculationsUSU Local Contest. March 20004265282

1470UFOsPetrozavodsk Summer 2006. Ural+Orel Contest1359282

1537EntsUSU Personal Contest 20071291282

1929Teddybears are not for EveryoneUral Regional School Programming Contest 2012578282

1501Sense of BeautyNEERC 2006 Eastern Subregional1325286

1981Parallel and PerpendicularUral FU Championship 2013465286

1018Binary Apple TreeUSU Local Contest. 19994243290

1032Find a MultipleUral Championship 19993683291

1024PermutationsAutumn School Contest 20004193293

2021Scarily interesting!NEERC 2014 Eastern Subregional354294

1184Cable MasterNEERC 20011360295

1377Lara CroftUral Championship 2005. Round 11437295

1742Team buildingPetrozavodsk Summer 2009. Ufa SATU Contest859296

1933Guns for Battle!Ural FU Championship 2012546296

1753BookshelfUSU Personal Contest 2010841297

1497Cutting a SquareAutumn School Contest 20061275298

1036Lucky Tickets4108299

1053PinocchioNEERC 2000 Central Subregional3995300

1934Black SpotUral FU Championship 2012539300

1551Sumo TournamentUral Championship 20071186302

1215Exactness of Projectile HitAutumn School Contest 20021329305

2104Game with a StripUral FU Junior Championship 2016144307

1124MosaicUSU Championship 20011287309

1137Bus RoutesNEERC 2001 Central Subregional1288309

1989SubpalindromesUral FU Championship 2013430309

1127Colored BricksUSU Championship 20011282310

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional732311

1190Bar of ChocolateSpring School Contest 20021282312

1153SupercomputerUral Championship 2001. Round 21274313

1521War Games 2Timus Top Coders: Third Challenge1191313

1116Piecewise Constant FunctionAutumn School Contest 20011265314

1227Rally ChampionshipNEERC 2002 Central Subregional1285316

1294Mars SatellitesSpring School Contest 20041312317

1588JamaicaNEERC 2007 Eastern Subregional1058319

1992CVSNEERC 2013 Eastern Subregional413320

1793Tray 2Ural Regional School Programming Contest 2010706324

1941Scary Martian WordUral FU Personal Contest 2012483324

1320Graph DecompositionUral Championship 2004. Round 21281325

1517Freedom of ChoiceTimus Top Coders: Third Challenge1143326

2046The First Day at SchoolUral Championship 2015268326

2063Black and WhiteUral Regional School Programming Contest 2015228326

1008Image EncodingUSTU PhysTech Cup 20003764328

1121BranchesAutumn School Contest 20011210328

1302Delta-waveUral Championship 19981266328

1185WallNEERC 20011218329

1450Russian PipelinesTimus Top Coders: Second Challenge1211331

1029MinistryUral Championship 19993213333

2062Ambitious ExperimentUral Regional School Programming Contest 2015223333

2108Oleg and Little PoniesUral FU Junior Championship 2016132333

2027URCAPL, Episode 1Ural Regional School Programming Contest 2014306335

1218Episode N-th: The Jedi TournamentUSU Championship 20021206336

1346Intervals of MonotonicityUSU Championship 20041253336

1406Next NumberAutumn School Contest 20051259336

1692Flags for ProvincesPetrozavodsk Winter 2009. USU Contest848336

1904The Lessons of the PastUral Championship 2012487336

1160NetworkNEERC 2001 Northern Subregional1200338

1604Country of FoolsUSU Personal Contest 2008955339

1201Which Day Is It?USU Local Contest. March 20021178340

1156Two RoundsUral Championship 2001. Round 21167341

1223Chernobyl’ Eagle on a RoofUSU Championship 20021187341

1060Flip GameNEERC 20003308343

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest1053347

1648YachtsAutumn School Contest 2008863347

1246Tethered DogUSU Personal Contest 20031165350

1282Game TreeNEERC 2003 Central Subregional1179350

1651Shortest SubchainNEERC 2008 Eastern Subregional852350

1431DiplomasUSU Personal Contest 20061161351

1090In the Army NowUSU Local Contest. March 20012917353

1261TipsAutumn School Contest 20031166353

1031Railway TicketsUral Championship 19993453355

1140Swamp IncidentNEERC 2001 Central Subregional1106359

1483Table FootballUSU Championship 20061058360

1752Tree 2Petrozavodsk Summer 2009. Ufa SATU Contest705360

1262Pseudo-Roman NumberAutumn School Contest 20031140361

2078Bowling gameUral Championship 2016156361

1292Mars Space StationsSpring School Contest 20041145362

1495One-two, One-two 2Autumn School Contest 20061050362

1007Code WordsUSU Championship 19973381365

1574Mathematicians and bracketsAutumn School Contest 2007924367

2026Dean and ScheduleUral Regional School Programming Contest 2014278367

1356Something EasierSpring School Contest 20051140369

1403CourierAutumn School Contest 20051145370

1828Approximation by a ProgressionUSU Personal Contest 2011579370

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional356370

1078SegmentsWinter Mathematical Festival Varna 20012944371

1141RSA Attack1067373

1854Negotiations with ParthiansPetrozavodsk Summer 2011. Ural SU Team.GOV Contest528373

1901Space ElevatorsUral Championship 2012437374

1176HyperchannelsUSU Personal Contest 20021065375

1055CombinationsNEERC 2000 Central Subregional3172378

1039Anniversary PartyUSU Championship 20003207379

2047MathsUral Championship 2015229379

1003ParityCentral European Olympiad in Informatics 19993228383

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional506383

1279WarehouseNEERC 2003 Central Subregional1075384

1229Strong BrickworkNEERC 2002 Central Subregional1052385

1259How to Become Star?Autumn School Contest 20031071385

1783Nuclear Arms RaceUral SU Championship 2010593386

1759Long-LiversUSU Personal Contest 2010642387

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional266387

1287Mars CanalsUSU Personal Contest 20041065389

1289One Way TicketUSU Personal Contest 20041059391

1427SMSTimus Top Coders: First Challenge1043392

1963KiteUral FU Personal Contest 2013362392

1489Points on a ParallelepipedAutumn School Contest 2006964393

1995Illegal spicesNEERC 2013 Eastern Subregional333395

2030Awesome Backup SystemUral Regional School Programming Contest 2014258395

1111SquaresBulgarian Online Contest September 20011002396

1115ShipsBulgarian Online Contest September 20011000396

1407One-two, One-twoAutumn School Contest 20051069396

1562GM-pineappleUSU Championship 2007857396

1343Fairy TaleUSU Championship 20041059397

1217Unlucky TicketsUSU Championship 20021015399

1923Scary PoliticsUral Regional School Programming Contest 2012405400

2081Faulty dialUral Championship 2016139402

1350CanteenSpring School Contest 20051044403

1631Drunk King 2USU Championship 2008743404

1665Dean's Financial PyramidPetrozavodsk Winter 2008. USU Contest724404

1015Test the Difference!USU Local Contest. 19993039405

1077Travelling Tours976406

1860FiborialPetrozavodsk Summer 2011. Ural SU Team.GOV Contest484407

1774Barber of the Army of MagesUral SU Championship 2010558410

1107Warehouse ProblemTetrahedron Team Online Contest May 2001958411

1732Ministry of TruthUSU Championship 2009635411

1094E-screenUSU Local Contest. March 20012493413

1221Malevich Strikes Back!USU Championship 2002980413

1252Sorting the TombstonesUSU Local Contest. March 2003987413

1513Lemon TaleTimus Top Coders: Third Challenge901413

1291Gear-wheelsSpring School Contest 20041000414

1145Rope in the LabyrinthDSAP Vietnam Online Contest November 2001954416

1128Partition into GroupsUSU Championship 2001950418

1507Difficult DecisionNEERC 2006 Eastern Subregional903418

1602ElevatorUSU Personal Contest 2008774418

2045Richness of wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest238420

1571InterpretersUSU Championship 2007802423

1700AwakeningUral Championship 2009663425

1038Spell CheckerUSU Championship 20002849426

2099Space InvaderUral FU Personal Contest 2014124427

1480CouponsUSU Championship 2006887428

1181Cutting a Painted PolygonUSU Personal Contest 2002929430

2071Juice CocktailsUral Regional School Programming Contest 2015170431

1776Anniversary FireworkUral SU Championship 2010529432

1202Rectangles TravelUSU Local Contest. March 2002922433

1089Verification with a VocabularySpring School Contest 20012494434

1258PoolAutumn School Contest 2003948434

1416ConfidentialUSU Championship 2005969434

1519Formula 1Timus Top Coders: Third Challenge855435

2029Towers of Hanoi Strike BackUral Regional School Programming Contest 2014233435

1019Line PaintingUSU Local Contest. 19992809438

1410CrackUSU Championship 2005955441

1873GOV ChroniclesUral Regional School Programming Contest 2011438443

1900Brainwashing DeviceUral Championship 2012367443

1942Attack at the OrbitUral FU Personal Contest 2012351443

1129Door PaintingUSU Championship 2001888446

1890Money out of Thin AirNEERC 2011 Eastern Subregional433446

1641DutiesAutumn School Contest 2008667447

2109Tourism on MarsUral FU Junior Championship 201695450

1238FoldingNEERC 2002893454

1643Attack of the Dark FortressAutumn School Contest 2008654456

1960Palindromes and Super AbilitiesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection306463

1051Simple Game on a GridUSU Local Contest. March 20002571466

1316Electronic AuctionUral Championship 2004. Round 1887467

1535The Hobbit or There and Back AgainUSU Personal Contest 2007777467

1326Bottle TapsUral Championship 2004. Round 2884469

1155TroubleduonsUral Championship 2001. Round 2845470

1728Curse on Team.GOVUral Regional School Programming Contest 2009557471

1189Pairs of IntegersNEERC 2001846472

1072RoutingUSU Personal Contest 20012329474

1273TieUSU Championship 2003865475

1430Crime and PunishmentTimus Top Coders: First Challenge854477

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional473478

1329Galactic HistoryAutumn School Contest 2004871479

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest710479

1401GamersAutumn School Contest 2005878481

1428Jedi RiddleTimus Top Coders: First Challenge846482

1091Tmutarakan ExamsUSU Local Contest. March 20012126484

1162Currency ExchangeNEERC 2001 Northern Subregional821484

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional333486

1971Graphics SettingsUral Championship 2013282487

1236Decoding TaskNEERC 2002830488

1525PathPetrozavodsk Winter 2007. D.Gozman Contest745488

1103Pencils and CirclesTetrahedron Team Online Contest May 2001802490

1577E-mailAutumn School Contest 2007689490

1628White StreaksUSU Championship 2008610490

1579Coat TransportationAutumn School Contest 2007680496

1322SpyUral Championship 2004. Round 2828500

1095Nikifor 3USU Local Contest. March 20012050501

1439Battle with You-Know-WhoUral Championship 2006801502

1884Way to the UniversityUral Regional School Programming Contest 2011385502

1212BattleshipAutumn School Contest 2002802503

1098Questions1950504

1414Astronomical DatabaseUSU Championship 2005834504

1182Team Them Up!NEERC 2001789505

2080WalletUral Championship 2016108508

1158Censored!NEERC 2001 Northern Subregional780509

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional513512

1871Seismic WavesUral FU Championship 2011378513

2074Timus problems classifierQualification of eastern subregional contest 2015122515

1066GarlandNEERC 20002194516

1056Computer NetNEERC 2000 Central Subregional2314517

1980Road to InvestorUral Championship 2013265517

1045Funny GameUSU Local Contest. March 20002317518

1870Zinium 2Ural FU Championship 2011374518

1891Language OceanNEERC 2011 Eastern Subregional369522

2032Conspiracy Theory and RebrandingUral Regional School Programming Contest 2014192523

1334CheckersAutumn School Contest 2004794525

2064CaterpillarsUral Regional School Programming Contest 2015138525

1069Prufer CodeUSU Personal Contest 20012096526

1729Dead Man's ChestUral Regional School Programming Contest 2009497526

1314Chase in SubwayUral Championship 2004. Round 1785527

1366PresentsUral Championship 2005. Round 2797527

1754Explosion in a PyramidUSU Personal Contest 2010467530

1362Classmates 2Ural Championship 2005. Round 2791531

1600AirportUSU Personal Contest 2008606531

2004Scientists from SpilkovoUral Regional School Programming Contest 2013239539

1437Gasoline StationUSU Personal Contest 2006749541

2028URCAPL, Episode 2Ural Regional School Programming Contest 2014185542

1101Robot in the FieldTetrahedron Team Online Contest May 2001723543

1400Cellular CharactersAutumn School Contest 2005777543

2089Experienced coachUral Championship 2016100545

1143Electric PathDSAP Vietnam Online Contest November 2001726546

1465Pawn GamePetrozavodsk Winter 2006. USU Contest705546

1004Sightseeing TripCentral European Olympiad in Informatics 19992248549

2048HistoryUral Championship 2015155550

1351Good Gnusmas – Dead GnusmasSpring School Contest 2005759552

1534Football in GondorUSU Personal Contest 2007650556

1650BillionairesNEERC 2008 Eastern Subregional533556

1605Devil's SequenceUSU Personal Contest 2008577558

1027D++ AgainAutumn School Contest 20002195559

2009Canteen LineUral Regional School Programming Contest 2013229561

1448Lighting in HogwartsUral Championship 2006713563

2040Palindromes and Super Abilities 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest174566

1375Bill CleversUral Championship 2005. Round 1742568

1172Ship RoutesRomanian Online Contest December 2001696570

1085MeetingSpring School Contest 20011893571

1698Square Country 5Petrozavodsk Winter 2009. USU Contest495571

1928Another Ecology ProblemUral Regional School Programming Contest 2012280572

1421Credit OperationsTimus Top Coders: First Challenge707575

1710Boris, You Are Wrong!Ural Championship 2009486577

1760Infernal WorkUSU Personal Contest 2010428577

1064Binary SearchNEERC 20001960578

1071Nikifor 2USU Personal Contest 20011906578

1550Dean's Pyramid 3Ural Championship 2007615579

1592Chinese WatchesNEERC 2007 Eastern Subregional578580

1682Crazy ProfessorUSU Personal Contest 2009489581

1061Buffer ManagerNEERC 20001947582

1803The Czechs' RiflesNEERC 2010 Eastern Subregional386583

1822Hugo II's WarUSU Personal Contest 2011363584

1838Samurai's StrokeUral Championship 2011356585

1325DirtUral Championship 2004. Round 2702589

1358CablesSpring School Contest 2005710590

1966Cycling RoadsUral FU Personal Contest 2013237590

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional170594

1067Disk TreeNEERC 20001904595

1706Cipher Message 2Ural Championship 2009471595

1070Local TimeUSU Personal Contest 20011848596

1445Christmas giftsUral Championship 2006672597

1059ExpressionNEERC 2000 Central Subregional2001598

1962In Chinese RestaurantUral FU Personal Contest 2013234598

1659Regular TrianglesNEERC 2008 Eastern Subregional494599

1806Mobile TelegraphsNEERC 2010 Eastern Subregional374601

1198Jobbery698603

1690Army of MagesPetrozavodsk Winter 2009. USU Contest467604

1701Ostap and PartnersUral Championship 2009463605

2106DeserializationUral FU Junior Championship 201668605

1309DisputeUral Championship 2004. Round 1680608

1713Key SubstringsNEERC 2009 Eastern Subregional430608

2060Subpalindrome pairsPalindromic Contest 130609

2092BoleroUral FU Personal Contest 201484609

1939First SealUral FU Championship 2012260610

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest552613

1767The House of Doctor DeeUral Championship 2010393620

1619Big BrotherPetrozavodsk Winter 2008. ITMO Contest485625

1332Genie BomberAutumn School Contest 2004664627

1054Hanoi TowerNEERC 2000 Central Subregional1905628

1542AutocompletionUral Championship 2007562632

1990PodracingNEERC 2013 Eastern Subregional204632

1371Cargo AgencyUral Championship 2005. Round 1662635

1866Poetic FootUral FU Championship 2011303636

1076Trash1708641

1892Morning in KoltsovoNEERC 2011 Eastern Subregional298642

1248Sequence SumUSU Personal Contest 2003630643

1254Die HardUSU Local Contest. March 2003630643

1486Equal SquaresUSU Championship 2006586644

1452Pascal vs. C++Timus Top Coders: Second Challenge615646

1724Origin of Man ClarifiedUral Regional School Programming Contest 2009401649

1234BricksNEERC 2002617653

1174Weird PermutationsRomanian Online Contest December 2001605654

1861Graveyard in DeyjaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest297654

1253NecrologuesUSU Local Contest. March 2003618655

1903Unidentified ShipsUral Championship 2012245655

1564Counting OnesUSU Championship 2007512657

1606SlalomUSU Personal Contest 2008485661

1096Get the Right Route Plate!USU Local Contest. March 20011549662

1186Chemical ReactionsNEERC 2001599663

1943Space RummyUral FU Personal Contest 2012231664

1500Pass LicensesNEERC 2006 Eastern Subregional563666

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional239669

1961Cantonese DialectUral FU Personal Contest 2013208669

1088Ilya MurometzSpring School Contest 20011594677

1132Square Root582678

1286Starship TravelUSU Personal Contest 2004607678

1443RailsUral Championship 2006590678

1274Fractional ArithmeticNEERC 2003 Central Subregional603679

1940Not So Simple YearsUral FU Championship 2012232681

1755CakeUSU Personal Contest 2010357688

1463Happiness to People!Petrozavodsk Winter 2006. USU Contest556690

1772Ski-Trails for RobotsUral Championship 2010352690

1994The Emperor's planNEERC 2013 Eastern Subregional186690

1168Radio StationsRomanian Online Contest December 2001571692

1633HippogriffsUSU Championship 2008429692

1440Training ScheduleUral Championship 2006576695

1057Amount of DegreesNEERC 2000 Central Subregional1707700

1250Sea BurialUSU Local Contest. March 2003576702

2008SwiftyUral Regional School Programming Contest 2013181702

1611DecimationUral Championship 2008451703

1305Convex HullUral Championship 1998585704

1872Spacious OfficeUral FU Championship 2011272706

1230Introspective ProgramNEERC 2002 Central Subregional568707

1474About FrogsPetrozavodsk Summer 2006. Ural+Orel Contest535707

1932The Secret of IdentifierUral FU Championship 2012223707

1159FenceNEERC 2001 Northern Subregional556710

1484Film RatingUSU Championship 2006527715

1301Cube in LabyrinthUral Championship 1998574717

1773Metro to Every HomeUral Championship 2010338718

1389RoadworksPetrozavodsk Summer 2005. Moscow+Ural Contest584719

1825Ifrit Bomber 2USU Personal Contest 2011292722

1169PairsRomanian Online Contest December 2001546723

1629TripUSU Championship 2008410724

1959GOV-internship 3Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection192725

1034Queens in Peaceful PositionsUral Championship 19991683726

1832Arirang ShowUral Championship 2011285726

1775Space BowlingUral SU Championship 2010309730

1780Gray CodeUral SU Championship 2010309730

1716Alternative SolutionNEERC 2009 Eastern Subregional356731

1830Help in the RNOSUral Championship 2011283731

1405Goat in the Garden 5Autumn School Contest 2005573732

1037Memory ManagementUSU Championship 20001649734

1926The Tournament of IntelligencesUral Regional School Programming Contest 2012216734

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional214744

1593Square Country. Version 2381747

1235Cricket FieldNEERC 2002536750

1016Cube on the WalkUSU Local Contest. 19991630753

1424MinibusTimus Top Coders: First Challenge536755

1986Paul’s SaladsUral FU Championship 2013170755

1614National Project “Trams”Ural Championship 2008419756

1875Angry BirdsUral Regional School Programming Contest 2011251760

1392Dreaming of Stars546768

1647Divide an Island!Autumn School Contest 2008382772

1974Similar TunesUral Championship 2013174773

1512ZiniumTimus Top Coders: Third Challenge476774

1646Godzilla Strikes Back!Autumn School Contest 2008381774

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional287777

1988Planet Ocean LandingUral FU Championship 2013165777

2037Richness of binary wordsPetrozavodsk Summer 2014. Ural FU Dandelion Contest124777

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest430783

1042Central HeatingUSU Championship 20001536788

1379Cups TransportationUral Championship 2005. Round 1532788

1587Flying PigNEERC 2007 Eastern Subregional421791

1323ClassmatesUral Championship 2004. Round 2519792

1276TrainNEERC 2003 Central Subregional512797

2103Corporate MailUral FU Junior Championship 201649800

1268Little ChuUSU Championship 2003509801

1996Cipher Message 3NEERC 2013 Eastern Subregional159801

1105Observers ColoringTetrahedron Team Online Contest May 2001486802

1689Fisherman and BarbellUSU Personal Contest 2009351803

1030TitanicUral Championship 19991515806

1738Computer SecurityUSU Championship 2009319807

1456Jedi Riddle 2Timus Top Coders: Second Challenge490808

1269Obscene Words FilterUSU Championship 2003504809

1547Password SearchUral Championship 2007432818

1277Cops and ThievesNEERC 2003 Central Subregional497821

1147Shaping RegionsDSAP Vietnam Online Contest November 2001478823

1720Summit Online JudgeNEERC 2009 Eastern Subregional315823

1468FractionPetrozavodsk Summer 2006. Ural+Orel Contest458824

1436BillboardUSU Personal Contest 2006484831

1165SubnumberNEERC 2001 Northern Subregional470837

1705Gangster HaresUral Championship 2009331839

1927Herbs and MagicUral Regional School Programming Contest 2012186847

2052Physical EducationUral Championship 201597847

1342EnterpriseUSU Championship 2004490849

1462Uncle Scrooge's GoldPetrozavodsk Winter 2006. USU Contest447855

1936RoshamboUral FU Championship 2012182858

1373Pictura ex MachinaUral Championship 2005. Round 1486861

1578Mammoth HuntAutumn School Contest 2007387862

1817Merry-go-roundPetrozavodsk Summer 2010. Tavrida NU Contest248862

2017Best of a bad lotNEERC 2014 Eastern Subregional114862

1154Mages ContestUral Championship 2001. Round 2452870

1824Ifrit BomberUSU Personal Contest 2011240872

1715Another Ball KillerNEERC 2009 Eastern Subregional296874

1498Stroke at Full SpeedAutumn School Contest 2006428875

1006Square FramesUSU Championship 19971401878

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest407884

1970皇后像廣場Ural FU Personal Contest 2013155884

1905Travel in TimeUral Championship 2012178889

1324Extra SpacesUral Championship 2004. Round 2459894

1630TalismanUSU Championship 2008330894

1743Domino SortingPetrozavodsk Summer 2009. Ufa SATU Contest278894

1580Dean's DebtsAutumn School Contest 2007372896

1237Evacuation PlanNEERC 2002446900

1245PicturesUSU Personal Contest 2003447900

1696Salary for RobotsPetrozavodsk Winter 2009. USU Contest310901

1233Amusing NumbersNEERC 2002444902

1608Lucky Tickets 2008Ural Championship 2008348906

1175Strange SequenceUSU Personal Contest 2002431915

1745Yet Another AnswerPetrozavodsk Summer 2009. Ufa SATU Contest271916

1921Chaos and OrderUral Regional School Programming Contest 2012171917

1364LaraKillerUral Championship 2005. Round 2452921

1285Thread in a HyperspaceUSU Personal Contest 2004443924

1761Binary PalindromeUSU Personal Contest 2010262929

1422FirefliesTimus Top Coders: First Challenge432933

1625Hankel MatrixPetrozavodsk Winter 2008. ITMO Contest321935

1575Yekaterinburg Subway 2Autumn School Contest 2007352946

1949The Best Picture in the GalaxyUral FU Personal Contest 2012159947

1965Pear TreesUral FU Personal Contest 2013144947

1278“… Connecting People”NEERC 2003 Central Subregional428950

1398Bishop and Pawn383952

1827Indigenous WarsUSU Personal Contest 2011219952

1836Babel FishUral Championship 2011215952

1948The Robot on the LineUral FU Personal Contest 2012158952

2093All Roads Lead to SnowdriftUral FU Personal Contest 201450954

1863Peaceful AtomUral FU Championship 2011198957

1339BabiesUSU Championship 2004432960

1730ManBearPigUral Regional School Programming Contest 2009268960

1937Davy Jones’s OrganUral FU Championship 2012161963

2110Remove or MaximizeUral FU Junior Championship 201639964

1591Abstract ThinkingNEERC 2007 Eastern Subregional343966

1784RoundersUral SU Championship 2010231966

1451Beerhouse TaleTimus Top Coders: Second Challenge406971

1040Airline CompanyUSU Championship 20001243972

1976Game OptimizationUral Championship 2013136975

1907Coffee and BunsUral Championship 2012161977

1569Networking the “Iset”USU Championship 2007341978

1435Financial ErrorUSU Personal Contest 2006409980

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest341982

1130Nikifor's WalkUSU Championship 2001398983

1883Ent's BirthdayUral Regional School Programming Contest 2011191987

1979Resources DistributionUral Championship 2013134988

1679Scrooge's TowerPetrozavodsk Summer 2008. USU Contest288989

1418Military StoryUSU Championship 2005419991

2036Intersect Until You're Sick of ItPetrozavodsk Summer 2014. Ural FU Dandelion Contest95991

1331VladislavaAutumn School Contest 2004415994

1887Frequent Flyer CardNEERC 2011 Eastern Subregional188999

1857Alice and BandersnatchPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1861025

1768Circular StringsUral Championship 20102331028

1539Intelligence DataUSU Personal Contest 20073461031

1075Thread in a SpaceUSU Personal Contest 200110601035

1983Nectar GatheringUral FU Championship 20131211037

1173Lazy SnailRomanian Online Contest December 20013771039

1461Christmas GarlandPetrozavodsk Winter 2006. USU Contest3661039

1518Jedi Riddle 3Timus Top Coders: Third Challenge3521039

1570Eating HighUSU Championship 20073201040

1151RadiobeaconsUral Championship 2001. Round 23681063

2055Urban GeographyUral Championship 2015751067

1791Uncle Styopa and BusesUral Regional School Programming Contest 20102061075

1699Turning TurtlesPetrozavodsk Winter 2009. USU Contest2581076

1862Very Wealthy MoleUral FU Championship 20111751076

1317HailUral Championship 2004. Round 23781080

1722Observation DeckUral Regional School Programming Contest 20092361085

1341DeviceUSU Championship 20043801088

1434Buses in VasyukiUSU Personal Contest 20063671089

1750Pakhom and the GullyPetrozavodsk Summer 2009. Ufa SATU Contest2261090

1879GOV-internship 2Ural Regional School Programming Contest 20111721090

1447Portkey NetworkUral Championship 20063611097

1790Searching for the TruthUral Regional School Programming Contest 20102011100

1687Numismatics for FunUSU Personal Contest 20092511110

1968Glass PyramidUral FU Personal Contest 20131211113

1540Battle for the RingUSU Personal Contest 20073161126

1444ElephpotamusUral Championship 20063511128

1627JoinPetrozavodsk Winter 2008. ITMO Contest2641130

1855Trade Guilds of ErathiaPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1661141

1472Martian ArmyPetrozavodsk Summer 2006. Ural+Orel Contest3271144

1595Perfect Sequence2341149

1736Chinese HockeyUSU Championship 20092191159

1386MazePetrozavodsk Summer 2005. Moscow+Ural Contest3581160

1533Fat HobbitsUSU Personal Contest 20073061162

1896War Games 2.1441163

1511Fiscal OperationsTimus Top Coders: Third Challenge3131164

1666Vasya FerrariPetrozavodsk Winter 2008. USU Contest2451164

1458War GamesTimus Top Coders: Second Challenge3341174

1544Classmates 3Ural Championship 20072971178

1408Polynomial MultiplicationAutumn School Contest 20053521179

1357Teakettle 1.0 for DummiesSpring School Contest 20053501180

2007Mutants versus MachinesUral Regional School Programming Contest 20131031187

1453QueenTimus Top Coders: Second Challenge3271198

1844Warlord of the Army of MagesPetrozavodsk Summer 2010. USU Contest1571206

1393Average Common Prefix3391209

1538Towers of GuardUSU Personal Contest 20072921216

1359ConstructionSpring School Contest 20053391217

1747Kingdom InspectionPetrozavodsk Summer 2009. Ufa SATU Contest2011220

1469No Smoking!Petrozavodsk Summer 2006. Ural+Orel Contest3051224

1307ArchiverUral Championship 2004. Round 13321226

1467Sum of DegreesPetrozavodsk Winter 2006. USU Contest3081228

1310ACM DiagnosticsUral Championship 2004. Round 13311229

1811Dual-SIM PhonePetrozavodsk Summer 2010. Tavrida NU Contest1711229

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2671231

1807Cartridges for MaximNEERC 2010 Eastern Subregional1761241

1766Humpty DumptyUral Championship 20101911243

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1241243

1035Cross-stitchUral Championship 19999751246

1546Japanese SortingUral Championship 20072801247

1099Work Scheduling7391248

1813Random ShufflerPetrozavodsk Summer 2010. Tavrida NU Contest1671256

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2641258

1985Prime SquareUral FU Championship 2013981258

1487Chinese FootballUSU Championship 20062941263

1946Chinese Hockey 3Ural FU Personal Contest 20121161270

2097Snowboarding on SpilnayaUral FU Personal Contest 2014351272

2085Magic ProgrammerUral Championship 2016371274

2101Knight's ShieldUral FU Junior Championship 2016271276

1321Floor IndicatorUral Championship 2004. Round 23181278

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional1981286

1657Cube SnakeNEERC 2008 Eastern Subregional2241290

1171Lost in SpaceRomanian Online Contest December 20013011293

1669Universal WordPetrozavodsk Winter 2008. USU Contest2191296

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2731303

1686Photovoltaic SpaceshipUSU Personal Contest 20092121305

1177Like ComparisonsUSU Personal Contest 20022971314

1951Complex RootPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1011319

1328FireballAutumn School Contest 20043101320

1360Philosophical DisputeUral Championship 2005. Round 23111325

1097Square Country 2USU Local Contest. March 20017661331

1050Preparing an ArticleUSU Local Contest. March 20008921335

1065FrontierNEERC 20008431335

1281River BasinNEERC 2003 Central Subregional3001343

1947MeanderUral FU Personal Contest 20121091344

2107Oppa Funcan StyleUral FU Junior Championship 2016251349

1441From the History of Gringotts BankUral Championship 20062911352

2059Not common palindromesPalindromic Contest 531353

1311Stable ConstructionUral Championship 2004. Round 12971365

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2581376

1851GOV-internshipPetrozavodsk Summer 2011. Ural SU Team.GOV Contest1361376

1499KerchiefsAutumn School Contest 20062671383

1318LogarithmUral Championship 2004. Round 22931384

1240Heroes of Might and MagicNEERC 20022851388

1419Maps of the Island WorldsUSU Championship 20052951394

1449Credit Operations 2Timus Top Coders: Second Challenge2791397

1620Clever HousePetrozavodsk Winter 2008. ITMO Contest2111401

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2531402

2041NanomatryoshkasPetrozavodsk Summer 2014. Ural FU Dandelion Contest641406

1345HTMLUSU Championship 20042901415

1762Search for a Hiding-PlaceUSU Personal Contest 20101681419

1299PsyloniansSpring School Contest 20042841424

1347BlogSpring School Contest 20052861435

1265MirrorUSU Championship 20032791439

1950Martian FarmlandsUral FU Personal Contest 20121011441

1266Kirchhoff's LawUSU Championship 20032771449

1956Fire SignalsPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection911449

1170DesertRomanian Online Contest December 20012661457

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1471470

1412Autumn TideUSU Championship 20052771482

1476Lunar CodePetrozavodsk Summer 2006. Ural+Orel Contest2481494

1746HyperrookPetrozavodsk Summer 2009. Ufa SATU Contest1621496

1770The Party of Ural ChampionsUral Championship 20101561505

1251Cemetery ManagerUSU Local Contest. March 20032631508

1043Cover an ArcUSU Championship 20007951514

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional991528

1241Inlay CuttersNEERC 20022541553

1886Trip 2NEERC 2011 Eastern Subregional1171557

1387Vasya's DadPetrozavodsk Summer 2005. Moscow+Ural Contest2641558

1568Train Car SortingUSU Championship 20072101560

1488ACM PokerUSU Championship 20062341574

1802Cube PuzzleNEERC 2010 Eastern Subregional1361581

1337BureaucracyAutumn School Contest 20042571582

20503D-modelingUral Championship 2015471591

1565The Duel for ThreeUSU Championship 20072051596

1908Brute-force SearchUral Championship 2012941607

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1131608

1764TranssibUral Championship 20101441623

1670AsteriskPetrozavodsk Summer 2008. USU Contest1711628

1676Mortal KombatPetrozavodsk Summer 2008. USU Contest1711628

1485Football and LieUSU Championship 20062251634

1953Biggest Inscribed EllipsePetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection791645

1557Network AttackPetrozavodsk Summer 2007. NSU Contest1991649

2038Minimum Vertex CoverPetrozavodsk Summer 2014. Ural FU Dandelion Contest531652

1257HyphenationAutumn School Contest 20032401663

1583CheeseNEERC 2007 Eastern Subregional1941671

1818Fair FishermenPetrozavodsk Summer 2010. Tavrida NU Contest1231672

1749Periodic SumPetrozavodsk Summer 2009. Ufa SATU Contest1431682

1782Jack's New WordUral SU Championship 20101281687

1673Admission to ExamPetrozavodsk Summer 2008. USU Contest1641693

1675Lunar Code 2Petrozavodsk Summer 2008. USU Contest1641693

1508Japanese PuzzleNEERC 2006 Eastern Subregional2141704

1378Artificial IntelligenceUral Championship 2005. Round 12401708

1338AutomobilesUSU Championship 20042381711

1420Integer-Valued Complex DivisionUSU Championship 20052381715

1459Archer's TravelPetrozavodsk Winter 2006. USU Contest2171721

1707Hypnotoad's SecretUral Championship 20091561724

1062TriathlonNEERC 20006481730

1516NostalgiaTimus Top Coders: Third Challenge2061741

1734Endgame DatabaseUSU Championship 20091411757

1046Geometrical DreamsUSU Local Contest. March 20006731763

1144The Emperor's RiddleDSAP Vietnam Online Contest November 20012161777

1425Queen 2Timus Top Coders: First Challenge2211785

1610CactusesUral Championship 20081711792

2058100500 palidnromesPalindromic Contest 371814

1841CablewaysPetrozavodsk Summer 2010. USU Contest1011815

1849Rabbit Hunt 2Petrozavodsk Summer 2010. USU Contest1011815

1514National ParkTimus Top Coders: Third Challenge1971816

1503PolynomialNEERC 2006 Eastern Subregional1991826

1831Tsyfirkin's LessonUral Championship 20111071830

1615Tram SolitaireUral Championship 20081671832

1492Vasya's Dad 2Autumn School Contest 20061981842

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest1901843

1304ParallelepipedUral Championship 19982171845

1702CrossroadUral Championship 20091451846

1417Space Poker 2USU Championship 20052201849

1093DartsUSU Local Contest. March 20015461858

1757Gold BarsUSU Personal Contest 20101261858

1781Clean CodeUral SU Championship 20101151863

1744The Captain's SquadPetrozavodsk Summer 2009. Ufa SATU Contest1281865

1677Monkey at the KeyboardPetrozavodsk Summer 2008. USU Contest1471877

1667Square Country 3Petrozavodsk Winter 2008. USU Contest1471890

1703Robotic ArmUral Championship 20091411895

1852Cube in a Cube in a CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest961895

1163ChapaevNEERC 2001 Northern Subregional2021896

1664Pipeline TransportationPetrozavodsk Winter 2008. USU Contest1461903

2096All InclusiveUral FU Personal Contest 2014201908

1397Points Game1921909

1532Lost in TranslationUSU Personal Contest 20071811923

1148Building TowersDSAP Vietnam Online Contest November 20011981930

1382Game with CardsPetrozavodsk Summer 2005. Moscow+Ural Contest2111932

2075Take care of your eyebrows!Qualification of eastern subregional contest 2015251941

1455Freedom of SpeechTimus Top Coders: Second Challenge1981942

1839The MentaculusUral Championship 20111001947

1816Troubles with PollardPetrozavodsk Summer 2010. Tavrida NU Contest1041950

1267Yekaterinburg SubwayUSU Championship 20032031953

1216Two Pawns and One KingUSU Championship 20021991955

1187Statistical TroubleNEERC 20011941979

1315MDPAR and MIIARUral Championship 2004. Round 12001996

1634Spider MiteUSU Championship 20081422000

1396Maximum. Version 21892018

1541ChaseUSU Personal Contest 20071722018

1969Hong Kong TramUral FU Personal Contest 2013612053

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1892054

1041NikiforUSU Championship 20005832055

1063Domino PuzzleNEERC 20005412065

2083The Guardian of TraditionsUral Championship 2016192066

1188LibraryNEERC 20011852071

1977Energy WallUral Championship 2013582092

1978E-LiteUral Championship 2013582093

1074Very Short ProblemUSU Personal Contest 20015182098

1288AstrolocationUSU Personal Contest 20041892102

1655Somali PiratesNEERC 2008 Eastern Subregional1322125

1867NanotechnologiesUral FU Championship 2011832140

1232Asteroid LandingNEERC 2002 Central Subregional1802152

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional672163

1543Dance RevolutionUral Championship 20071572166

1549Another Japanese PuzzleUral Championship 20071572166

1812The Island of Bad Luck 2Petrozavodsk Summer 2010. Tavrida NU Contest922180

2022Riding a ToadNEERC 2014 Eastern Subregional392181

1361Spaceology vs. ChronisticsUral Championship 2005. Round 21842193

1504Good MannersNEERC 2006 Eastern Subregional1632206

1256Cemetery GuardUSU Local Contest. March 20031752225

1092TransversalUSU Local Contest. March 20014502245

2053BiologyUral Championship 2015302267

1284Space PokerUSU Personal Contest 20041742274

1717Eligibility RulesNEERC 2009 Eastern Subregional1072286

1833Hopes of RowingUral Championship 2011832303

2084Technical debtUral Championship 2016162304

1270UnicubeUSU Championship 20031702311

1945Many-armed BrothersUral FU Personal Contest 2012592318

1481Winning ChancesUSU Championship 20061552327

1972Game TestingUral Championship 2013512333

1850Space TourismPetrozavodsk Summer 2010. USU Contest762342

1368Goat in the Garden 3Ural Championship 2005. Round 21712350

1652Banking CrisisNEERC 2008 Eastern Subregional1182358

1895Steaks on BoardNEERC 2011 Eastern Subregional732383

2090Crossroads of DestinyUral FU Personal Contest 2014142386

1882Old NokiaUral Regional School Programming Contest 2011732390

1835Swamp DoctorUral Championship 2011792406

1758Bald Spot Revisited 2USU Personal Contest 2010942429

1735Theft of the CenturyUSU Championship 2009982457

1739FaryuksUSU Championship 2009982457

1798Fire Circle. Version 2242458

204431 PalindromesPetrozavodsk Summer 2014. Ural FU Dandelion Contest322478

2087TrainsUral Championship 2016142496

1829Routing TablesUSU Personal Contest 2011772505

1275Knights of the Round TableNEERC 2003 Central Subregional1562507

1454Rectangles 2Timus Top Coders: Second Challenge1492540

1300TaxesUral Championship 19981532570

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional942572

1520Empire Strikes BackTimus Top Coders: Third Challenge1362575

2051PhysicsUral Championship 2015252591

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1232592

1865The Island of MärketUral FU Championship 2011662618

1308Dean's PyramidUral Championship 2004. Round 11502620

1599Winding Number202646

1704DemodulationUral Championship 2009982650

1609Tram TileUral Championship 20081122658

1694Killer WordsPetrozavodsk Winter 2009. USU Contest982670

1859Last Season of Team.GOVPetrozavodsk Summer 2011. Ural SU Team.GOV Contest652678

1814Continued FractionPetrozavodsk Summer 2010. Tavrida NU Contest732679

1312TrayUral Championship 2004. Round 11442722

1663The Hobbit or There and Back Again 2Petrozavodsk Winter 2008. USU Contest992723

1239Ghost BustersNEERC 20021402730

2006Kirill the GardenerUral Regional School Programming Contest 2013392738

1395Pascal vs. C++. Version 21352780

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest932799

1505Oil TransferNEERC 2006 Eastern Subregional1262806

1566Triangular PostcardsUSU Championship 20071122813

1477AirplanesPetrozavodsk Summer 2006. Ural+Orel Contest1272814

1637Triangle Game 2USU Championship 2008982814

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional492823

1958Algorithm of Professor IvanovPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection412870

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest602877

1058ChocolateNEERC 2000 Central Subregional4042896

1464LightPetrozavodsk Winter 2006. USU Contest1232937

1482Triangle GameUSU Championship 20061202954

2079Memory leaksUral Championship 2016102995

1438Time Limit ExceededUSU Personal Contest 20061263019

1691Algorithm ComplexityPetrozavodsk Winter 2009. USU Contest853035

141140 Islands KnightsUSU Championship 20051303037

1367Top SecretUral Championship 2005. Round 21303038

1856War and PeacePetrozavodsk Summer 2011. Ural SU Team.GOV Contest563044

2061OEIS A216264Palindromic Contest 183045

1681Brother Bear's GardenUSU Personal Contest 2009843082

1975Model of the EarthUral Championship 2013363093

1751Improbability TheoryPetrozavodsk Summer 2009. Ufa SATU Contest733100

1442Floo PowderUral Championship 20061213108

1957MundialPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection373114

1955Boss, I Can See You!Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection373115

1622EndspielPetrozavodsk Winter 2008. ITMO Contest893127

1623Fractal LabyrinthPetrozavodsk Winter 2008. ITMO Contest893127

2049ChemistryUral Championship 2015193127

1858Magic CubePetrozavodsk Summer 2011. Ural SU Team.GOV Contest543139

1429BiscuitsTimus Top Coders: First Challenge1203171

1810AntiequationsPetrozavodsk Summer 2010. Tavrida NU Contest603177

1909Space ReconUral Championship 2012423214

1466Magic SquarePetrozavodsk Winter 2006. USU Contest1093282

2086Find DenisUral Championship 201683328

2043Kirill the Gardener 2Petrozavodsk Summer 2014. Ural FU Dandelion Contest213357

1597Chernobyl’ Eagle on a Roof. Version 2233363

1166Funny Card GameNEERC 2001 Northern Subregional1133381

1834Tennis RacketUral Championship 2011533399

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional393399

2057Non-palidromic cuttingPalindromic Contest 153411

1381Cockroaches in the BuildingPetrozavodsk Summer 2005. Moscow+Ural Contest1143444

1845Integer-valued Complex DeterminantPetrozavodsk Summer 2010. USU Contest483472

1616Square Country 4Ural Championship 2008833487

1778Chinese Hockey 2Ural SU Championship 2010563528

1815Farm in San AndreasPetrozavodsk Summer 2010. Tavrida NU Contest533530

1509Domino RecognitionNEERC 2006 Eastern Subregional983533

1938Caribbean TriangleUral FU Championship 2012363581

1199Mouse943597

1765Error 404Ural Championship 2010593621

1632LasersUSU Championship 2008733662

1847ZamkadyePetrozavodsk Summer 2010. USU Contest453662

2088Nostalgic EveningUral Championship 201663663

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest843667

1733Forgotten TechnologyUSU Championship 2009623686

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection293753

1598DSA Attack193756

2077ReductionsQualification of eastern subregional contest 201583774

2094Thousand ImpsUral FU Personal Contest 201453817

1967Programmer CasinoUral FU Personal Contest 2013283836

1380Ostap's ChessPetrozavodsk Summer 2005. Moscow+Ural Contest1003882

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest833964

2042NikitaPetrozavodsk Summer 2014. Ural FU Dandelion Contest164002

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest854058

1973Location GeneratorUral Championship 2013254065

1661DodecahedronPetrozavodsk Winter 2008. USU Contest614180

1460WiresPetrozavodsk Winter 2006. USU Contest824245

2082PokerUral Championship 201644245

1999The secret moduleNEERC 2013 Eastern Subregional214365

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest574430

1475Ryaba HenPetrozavodsk Summer 2006. Ural+Orel Contest774431

1344Gigantic TurnipUSU Championship 2004854468

1271Sailing DirectionsUSU Championship 2003824521

1594Aztec Treasure524525

2076VasianaQualification of eastern subregional contest 201554528

2054AstronomyUral Championship 2015104532

1340CucarachaUSU Championship 2004824613

1697Sniper ShotPetrozavodsk Winter 2009. USU Contest514726

2039Striped SquarePetrozavodsk Summer 2014. Ural FU Dandelion Contest124730

1771A Deputy's MorningUral Championship 2010424805

1797Summit Online Judge. Version 2254823

2016Magic and ScienceNEERC 2014 Eastern Subregional124856

1473Farm 2Petrozavodsk Summer 2006. Ural+Orel Contest694880

1799Sasha and swag strings64948

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest524994

1365Testing CalculatorUral Championship 2005. Round 2745064

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest515076

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest745083

1426RectanglesTimus Top Coders: First Challenge715090

1763Expert FleaUral Championship 2010395099

1801The Revolution CupNEERC 2010 Eastern Subregional345247

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest715272

1372Death StarUral Championship 2005. Round 1685473

1848Fly HuntPetrozavodsk Summer 2010. USU Contest265595

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest585670

1842Local RootsPetrozavodsk Summer 2010. USU Contest255755

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest245907

1668Death Star 2Petrozavodsk Winter 2008. USU Contest405936

1906The Lost CivilizationUral Championship 2012185969

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest416071

1363HalftonesUral Championship 2005. Round 2586255

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest376315

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional376421

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest246540

1674Drunk KingPetrozavodsk Summer 2008. USU Contest356548

1653Death ConveyorNEERC 2008 Eastern Subregional346859

1536Delights of Pipe-weedUSU Personal Contest 2007427062

1840Victim of AdvertisingUral Championship 2011197384

1596Knight Mare157442

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest307740

1432Twofold LuckUSU Personal Contest 2006437747

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest248666

1415Mobile LifeUSU Championship 2005388855

1376Dean's Pyramid 2Ural Championship 2005. Round 1388894

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest289070

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection69146

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest3210167

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest1710678

1399Economical Director2510686

1374MisereUral Championship 2005. Round 12811235

1672Droid fliesPetrozavodsk Summer 2008. USU Contest1611332

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest1911885

1708Sum of Digits 2Ural Championship 20091411922

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2012288

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2213344

1369Cockroach RaceUral Championship 2005. Round 21914667

1548Sakura and StatisticsUral Championship 20071415070

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1417792

1589SokobanNEERC 2007 Eastern Subregional424346

1394Ships. Version 2528469