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Problem set. NEERC Regionals

Solved problems: show | hide  •  Sort by: id | authors | difficulty

IDTitleSourceAuthorsDifficulty

2012About Grisha N.NEERC 2014 Eastern Subregional1532617

1225FlagsNEERC 2002 Central Subregional1431935

1585PenguinsNEERC 2007 Eastern Subregional1182838

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional906734

1224SpiralNEERC 2002 Central Subregional764566

1654Cipher MessageNEERC 2008 Eastern Subregional704159

2023Donald is a postmanNEERC 2014 Eastern Subregional663238

1502Domino DotsNEERC 2006 Eastern Subregional655274

1139City BlocksNEERC 2001 Central Subregional643478

1991The battle near the swampNEERC 2013 Eastern Subregional591947

1893A380NEERC 2011 Eastern Subregional562759

1510OrderNEERC 2006 Eastern Subregional554287

1161StripiesNEERC 2001 Northern Subregional544492

1136ParliamentNEERC 2001 Central Subregional5012100

1228ArrayNEERC 2002 Central Subregional4679108

1712Cipher GrilleNEERC 2009 Eastern Subregional458485

1226esreveR redrONEERC 2002 Central Subregional4459113

1053PinocchioNEERC 2000 Central Subregional4426340

1582BookmakersNEERC 2007 Eastern Subregional3682122

1280Topological SortingNEERC 2003 Central Subregional3620141

1055CombinationsNEERC 2000 Central Subregional3591419

1506Columns of NumbersNEERC 2006 Eastern Subregional3458140

1160NetworkNEERC 2001 Northern Subregional3455146

1586Threeprime NumbersNEERC 2007 Eastern Subregional3114144

1135RecruitsNEERC 2001 Central Subregional3097161

1711Code NamesNEERC 2009 Eastern Subregional2932132

1056Centers of the NetNEERC 2000 Central Subregional2738549

1134CardsNEERC 2001 Central Subregional2543196

1162Currency ExchangeNEERC 2001 Northern Subregional2534197

2018The Debut AlbumNEERC 2014 Eastern Subregional2512101

1138Integer PercentageNEERC 2001 Central Subregional2469202

1164FillwordNEERC 2001 Northern Subregional2427206

1590Bacon’s CipherNEERC 2007 Eastern Subregional2395187

1054Tower of HanoiNEERC 2000 Central Subregional2349640

1650BillionairesNEERC 2008 Eastern Subregional2261184

1133Fibonacci SequenceNEERC 2001 Central Subregional2233223

1059ExpressionNEERC 2000 Central Subregional2229674

1057Amount of DegreesNEERC 2000 Central Subregional2104714

1800Murphy's LawNEERC 2010 Eastern Subregional2102170

1658Sum of DigitsNEERC 2008 Eastern Subregional2076200

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional2034204

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1889189

1501Sense of BeautyNEERC 2006 Eastern Subregional1807266

1885Passenger ComfortNEERC 2011 Eastern Subregional1682196

1227Rally ChampionshipNEERC 2002 Central Subregional1671302

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1627156

1137Bus RoutesNEERC 2001 Central Subregional1545322

1282Game TreeNEERC 2003 Central Subregional1512337

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1391218

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1391199

1588JamaicaNEERC 2007 Eastern Subregional1374325

1229Strong BrickworkNEERC 2002 Central Subregional1319381

1140Swamp IncidentNEERC 2001 Central Subregional1314378

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1292234

1718RejudgeNEERC 2009 Eastern Subregional1265305

1651Shortest SubchainNEERC 2008 Eastern Subregional1207343

1279WarehouseNEERC 2003 Central Subregional1202423

1889Airport AnnouncementsNEERC 2011 Eastern Subregional1093300

1507Difficult DecisionNEERC 2006 Eastern Subregional1080444

1158Censored!NEERC 2001 Northern Subregional982505

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional883286

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional879403

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional860293

1998The old PadawanNEERC 2013 Eastern Subregional749367

1500Pass LicensesNEERC 2006 Eastern Subregional748639

1592Chinese WatchesNEERC 2007 Eastern Subregional744597

1274Fractional ArithmeticNEERC 2003 Central Subregional736688

1992CVSNEERC 2013 Eastern Subregional725379

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional711459

1890Money out of Thin AirNEERC 2011 Eastern Subregional711459

1276TrainNEERC 2003 Central Subregional686737

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional662579

1230Introspective ProgramNEERC 2002 Central Subregional655762

1159FenceNEERC 2001 Northern Subregional654755

1277Cops and ThievesNEERC 2003 Central Subregional638792

1659Regular TrianglesNEERC 2008 Eastern Subregional634648

1713Key SubstringsNEERC 2009 Eastern Subregional607631

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional594593

2021Scarily interesting!NEERC 2014 Eastern Subregional556451

1587Flying PigNEERC 2007 Eastern Subregional541817

1165SubnumberNEERC 2001 Northern Subregional531926

1058ChocolateNEERC 2000 Central Subregional5272803

1278“… Connecting People”NEERC 2003 Central Subregional509989

1716Alternative SolutionNEERC 2009 Eastern Subregional508751

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional502544

1803The Czechs' RiflesNEERC 2010 Eastern Subregional500703

1891Language OceanNEERC 2011 Eastern Subregional466695

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional461541

1995Illegal spicesNEERC 2013 Eastern Subregional452603

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional415717

1591Abstract ThinkingNEERC 2007 Eastern Subregional4111069

1720Summit Online JudgeNEERC 2009 Eastern Subregional385985

1715Another Ball KillerNEERC 2009 Eastern Subregional3751010

1892Morning in KoltsovoNEERC 2011 Eastern Subregional363887

1281River BasinNEERC 2003 Central Subregional3621379

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional3461007

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3191368

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional315938

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2991071

1508Japanese PuzzleNEERC 2006 Eastern Subregional2901614

1503PolynomialNEERC 2006 Eastern Subregional2701729

1657Cube SnakeNEERC 2008 Eastern Subregional2641524

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional261941

1990PodracingNEERC 2013 Eastern Subregional2561048

1994The Emperor's planNEERC 2013 Eastern Subregional2541056

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2511491

1807Cartridges for MaximNEERC 2010 Eastern Subregional2331475

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2301270

1583CheeseNEERC 2007 Eastern Subregional2281892

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2252157

2074Timus problems classifierQualification of Eastern Subregional 2015217980

1894Non-Flying WeatherNEERC 2011 Eastern Subregional2161464

1655Somali PiratesNEERC 2008 Eastern Subregional2141864

1996Cipher Message 3NEERC 2013 Eastern Subregional2141244

1504Good MannersNEERC 2006 Eastern Subregional2082221

1275Knights of the Round TableNEERC 2003 Central Subregional2052386

1232Asteroid LandingNEERC 2002 Central Subregional2042369

2017Best of a bad lotNEERC 2014 Eastern Subregional1801342

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1721969

1717Eligibility RulesNEERC 2009 Eastern Subregional1652223

1802Cube PuzzleNEERC 2010 Eastern Subregional1602109

1505Oil TransferNEERC 2006 Eastern Subregional1562917

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1511893

1886Trip 2NEERC 2011 Eastern Subregional1482094

1652Banking CrisisNEERC 2008 Eastern Subregional1432729

1895Steaks on BoardNEERC 2011 Eastern Subregional1432162

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1362088

1166Funny Card GameNEERC 2001 Northern Subregional1333585

1509Domino RecognitionNEERC 2006 Eastern Subregional1283509

1163ChapaevNEERC 2001 Northern Subregional1124108

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1113215

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional823313

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015702782

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional584482

2022Riding a ToadNEERC 2014 Eastern Subregional583750

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional564618

1801The Revolution CupNEERC 2010 Eastern Subregional545601

1653Death ConveyorNEERC 2008 Eastern Subregional536629

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516846

1999The secret moduleNEERC 2013 Eastern Subregional306969

2194Snakes&SnakesICPC Ural Regional Contest Qualifier 202327990

1589SokobanNEERC 2007 Eastern Subregional1915524

2016Magic and ScienceNEERC 2014 Eastern Subregional198793

2077ReductionsQualification of Eastern Subregional 2015197674

2076VasianaQualification of Eastern Subregional 2015187948

2192My GrandfatherICPC Ural Regional Contest Qualifier 2022151466

2198Deep UnderstandingICPC Ural Regional Contest Qualifier 2024131589

2199Company QuestionICPC Ural Regional Contest Qualifier 2024121666

2190Match of the MillenniumICPC Ural Regional Contest Qualifier 2022111745

2195Binary TreesICPC Ural Regional Contest Qualifier 202391929

2193Old Barabarian RapICPC Ural Regional Contest Qualifier 202282028

2191Piecewise Linear FunctionsICPC Ural Regional Contest Qualifier 202272147

2196ApocalypseICPC Ural Regional Contest Qualifier 202362278

2197Work is not a wolf; a wolf is to walkICPC Ural Regional Contest Qualifier 202462290
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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