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Problem set. NEERC Regionals


IDTitleSourceAuthorsDifficulty

1053PinocchioNEERC 2000 Central Subregional4388334

1054Tower of HanoiNEERC 2000 Central Subregional2282641

1055CombinationsNEERC 2000 Central Subregional3550413

1056Centers of the NetNEERC 2000 Central Subregional2691544

1057Amount of DegreesNEERC 2000 Central Subregional2047714

1058ChocolateNEERC 2000 Central Subregional5182777

1059ExpressionNEERC 2000 Central Subregional2210662

1133Fibonacci SequenceNEERC 2001 Central Subregional2189222

1134CardsNEERC 2001 Central Subregional2506194

1135RecruitsNEERC 2001 Central Subregional3024161

1136ParliamentNEERC 2001 Central Subregional492699

1137Bus RoutesNEERC 2001 Central Subregional1476328

1138Integer PercentageNEERC 2001 Central Subregional2425200

1139City BlocksNEERC 2001 Central Subregional633177

1140Swamp IncidentNEERC 2001 Central Subregional1292375

1158Censored!NEERC 2001 Northern Subregional964501

1159FenceNEERC 2001 Northern Subregional642749

1160NetworkNEERC 2001 Northern Subregional2999164

1161StripiesNEERC 2001 Northern Subregional537291

1162Currency ExchangeNEERC 2001 Northern Subregional2114230

1163ChapaevNEERC 2001 Northern Subregional1044284

1164FillwordNEERC 2001 Northern Subregional2397203

1165SubnumberNEERC 2001 Northern Subregional525913

1166Funny Card GameNEERC 2001 Northern Subregional1333499

1224SpiralNEERC 2002 Central Subregional748666

1225FlagsNEERC 2002 Central Subregional1392835

1226esreveR redrONEERC 2002 Central Subregional4390112

1227Rally ChampionshipNEERC 2002 Central Subregional1639300

1228ArrayNEERC 2002 Central Subregional4625107

1229Strong BrickworkNEERC 2002 Central Subregional1296379

1230Introspective ProgramNEERC 2002 Central Subregional644756

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2222131

1232Asteroid LandingNEERC 2002 Central Subregional2022332

1274Fractional ArithmeticNEERC 2003 Central Subregional709696

1275Knights of the Round TableNEERC 2003 Central Subregional1992396

1276TrainNEERC 2003 Central Subregional673733

1277Cops and ThievesNEERC 2003 Central Subregional625788

1278“… Connecting People”NEERC 2003 Central Subregional501980

1279WarehouseNEERC 2003 Central Subregional1182420

1280Topological SortingNEERC 2003 Central Subregional3504142

1281River BasinNEERC 2003 Central Subregional3481399

1282Game TreeNEERC 2003 Central Subregional1480336

1500Pass LicensesNEERC 2006 Eastern Subregional730637

1501Sense of BeautyNEERC 2006 Eastern Subregional1773264

1502Domino DotsNEERC 2006 Eastern Subregional642673

1503PolynomialNEERC 2006 Eastern Subregional2601745

1504Good MannersNEERC 2006 Eastern Subregional2022222

1505Oil TransferNEERC 2006 Eastern Subregional1522908

1506Columns of NumbersNEERC 2006 Eastern Subregional3297142

1507Difficult DecisionNEERC 2006 Eastern Subregional1058441

1508Japanese PuzzleNEERC 2006 Eastern Subregional2771641

1509Domino RecognitionNEERC 2006 Eastern Subregional1253489

1510OrderNEERC 2006 Eastern Subregional543487

1582BookmakersNEERC 2007 Eastern Subregional3627120

1583CheeseNEERC 2007 Eastern Subregional2221880

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3161338

1585PenguinsNEERC 2007 Eastern Subregional1148438

1586Threeprime NumbersNEERC 2007 Eastern Subregional3017144

1587Flying PigNEERC 2007 Eastern Subregional532805

1588JamaicaNEERC 2007 Eastern Subregional1346322

1589SokobanNEERC 2007 Eastern Subregional1418174

1590Bacon’s CipherNEERC 2007 Eastern Subregional2283190

1591Abstract ThinkingNEERC 2007 Eastern Subregional4031056

1592Chinese WatchesNEERC 2007 Eastern Subregional718599

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional486945

1650BillionairesNEERC 2008 Eastern Subregional1867215

1651Shortest SubchainNEERC 2008 Eastern Subregional1158345

1652Banking CrisisNEERC 2008 Eastern Subregional1392703

1653Death ConveyorNEERC 2008 Eastern Subregional506713

1654Cipher MessageNEERC 2008 Eastern Subregional688658

1655Somali PiratesNEERC 2008 Eastern Subregional2061865

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1990201

1657Cube SnakeNEERC 2008 Eastern Subregional2591497

1658Sum of DigitsNEERC 2008 Eastern Subregional2033197

1659Regular TrianglesNEERC 2008 Eastern Subregional618641

1711Code NamesNEERC 2009 Eastern Subregional2876129

1712Cipher GrilleNEERC 2009 Eastern Subregional451183

1713Key SubstringsNEERC 2009 Eastern Subregional597615

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1103112

1715Another Ball KillerNEERC 2009 Eastern Subregional365996

1716Alternative SolutionNEERC 2009 Eastern Subregional485754

1717Eligibility RulesNEERC 2009 Eastern Subregional1642146

1718RejudgeNEERC 2009 Eastern Subregional1242298

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2411488

1720Summit Online JudgeNEERC 2009 Eastern Subregional373975

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional649567

1800Murphy's LawNEERC 2010 Eastern Subregional1996171

1801The Revolution CupNEERC 2010 Eastern Subregional525518

1802Cube PuzzleNEERC 2010 Eastern Subregional1572049

1803The Czechs' RiflesNEERC 2010 Eastern Subregional464722

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional862392

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional343969

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1498227

1807Cartridges for MaximNEERC 2010 Eastern Subregional2311420

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1711890

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional583577

1885Passenger ComfortNEERC 2011 Eastern Subregional1594196

1886Trip 2NEERC 2011 Eastern Subregional1442038

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2921039

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional697444

1889Airport AnnouncementsNEERC 2011 Eastern Subregional1069291

1890Money out of Thin AirNEERC 2011 Eastern Subregional693446

1891Language OceanNEERC 2011 Eastern Subregional457672

1892Morning in KoltsovoNEERC 2011 Eastern Subregional355860

1893A380NEERC 2011 Eastern Subregional549457

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1991501

1895Steaks on BoardNEERC 2011 Eastern Subregional1392106

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional875433

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional554417

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2281206

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1491806

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional574285

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1364209

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional803190

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1267225

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional309900

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1332008

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional405692

1990PodracingNEERC 2013 Eastern Subregional2491005

1991The battle near the swampNEERC 2013 Eastern Subregional573845

1992CVSNEERC 2013 Eastern Subregional693370

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1344192

1994The Emperor's planNEERC 2013 Eastern Subregional2471013

1995Illegal spicesNEERC 2013 Eastern Subregional444574

1996Cipher Message 3NEERC 2013 Eastern Subregional2091189

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional486525

1998The old PadawanNEERC 2013 Eastern Subregional734350

1999The secret moduleNEERC 2013 Eastern Subregional296676

2012About Grisha N.NEERC 2014 Eastern Subregional1450416

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional251904

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional443521

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional815286

2016Magic and ScienceNEERC 2014 Eastern Subregional188430

2017Best of a bad lotNEERC 2014 Eastern Subregional1731290

2018The Debut AlbumNEERC 2014 Eastern Subregional2333101

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional864270

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1588148

2021Scarily interesting!NEERC 2014 Eastern Subregional547424

2022Riding a ToadNEERC 2014 Eastern Subregional573523

2023Donald is a postmanNEERC 2014 Eastern Subregional636137

2074Timus problems classifierQualification of Eastern Subregional 2015205943

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015642740

2076VasianaQualification of Eastern Subregional 2015167798

2077ReductionsQualification of Eastern Subregional 2015187241