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Problem set. NEERC Regionals


1053PinocchioNEERC 2000 Central Subregional4205317

1054Hanoi TowerNEERC 2000 Central Subregional2027656

1055CombinationsNEERC 2000 Central Subregional3360396

1056Computer NetNEERC 2000 Central Subregional2502532

1057Amount of DegreesNEERC 2000 Central Subregional1879707

1058ChocolateNEERC 2000 Central Subregional4542873

1059ExpressionNEERC 2000 Central Subregional2111630

1133Fibonacci SequenceNEERC 2001 Central Subregional2425183

1134CardsNEERC 2001 Central Subregional2455180

1135RecruitsNEERC 2001 Central Subregional2705164

1136ParliamentNEERC 2001 Central Subregional448499

1137Bus RoutesNEERC 2001 Central Subregional1499295

1138Integer PercentageNEERC 2001 Central Subregional2232198

1139City BlocksNEERC 2001 Central Subregional572977

1140Swamp IncidentNEERC 2001 Central Subregional1197368

1158Censored!NEERC 2001 Northern Subregional873504

1159FenceNEERC 2001 Northern Subregional605724

1160NetworkNEERC 2001 Northern Subregional1528294

1161StripiesNEERC 2001 Northern Subregional486091

1162Currency ExchangeNEERC 2001 Northern Subregional1003440

1163ChapaevNEERC 2001 Northern Subregional2171962

1164FillwordNEERC 2001 Northern Subregional2221200

1165SubnumberNEERC 2001 Northern Subregional494884

1166Funny Card GameNEERC 2001 Northern Subregional1193552

1224SpiralNEERC 2002 Central Subregional666568

1225FlagsNEERC 2002 Central Subregional1193038

1226esreveR redrONEERC 2002 Central Subregional4053111

1227Rally ChampionshipNEERC 2002 Central Subregional1444311

1228ArrayNEERC 2002 Central Subregional4326104

1229Strong BrickworkNEERC 2002 Central Subregional1157387

1230Introspective ProgramNEERC 2002 Central Subregional602738

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2012141

1232Asteroid LandingNEERC 2002 Central Subregional1862305

1274Fractional ArithmeticNEERC 2003 Central Subregional656689

1275Knights of the Round TableNEERC 2003 Central Subregional1612682

1276TrainNEERC 2003 Central Subregional574785

1277Cops and ThievesNEERC 2003 Central Subregional574785

1278“… Connecting People”NEERC 2003 Central Subregional452993

1279WarehouseNEERC 2003 Central Subregional1086418

1280Topological SortingNEERC 2003 Central Subregional3118147

1281River BasinNEERC 2003 Central Subregional3191394

1282Game TreeNEERC 2003 Central Subregional1350337

1500Pass LicensesNEERC 2006 Eastern Subregional661636

1501Sense of BeautyNEERC 2006 Eastern Subregional1578269

1502Domino DotsNEERC 2006 Eastern Subregional567675

1503PolynomialNEERC 2006 Eastern Subregional2271799

1504Good MannersNEERC 2006 Eastern Subregional1742318

1505Oil TransferNEERC 2006 Eastern Subregional1332982

1506Columns of NumbersNEERC 2006 Eastern Subregional2731156

1507Difficult DecisionNEERC 2006 Eastern Subregional985429

1508Japanese PuzzleNEERC 2006 Eastern Subregional2401706

1509Domino RecognitionNEERC 2006 Eastern Subregional1043741

1510OrderNEERC 2006 Eastern Subregional480189

1582BookmakersNEERC 2007 Eastern Subregional3339116

1583CheeseNEERC 2007 Eastern Subregional2061799

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2991258

1585PenguinsNEERC 2007 Eastern Subregional951941

1586Threeprime NumbersNEERC 2007 Eastern Subregional2526153

1587Flying PigNEERC 2007 Eastern Subregional473805

1588JamaicaNEERC 2007 Eastern Subregional1225315

1589SokobanNEERC 2007 Eastern Subregional821593

1590Bacon’s CipherNEERC 2007 Eastern Subregional1784217

1591Abstract ThinkingNEERC 2007 Eastern Subregional3721017

1592Chinese WatchesNEERC 2007 Eastern Subregional654585

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional407049

1650BillionairesNEERC 2008 Eastern Subregional749464

1651Shortest SubchainNEERC 2008 Eastern Subregional1004348

1652Banking CrisisNEERC 2008 Eastern Subregional1312500

1653Death ConveyorNEERC 2008 Eastern Subregional407049

1654Cipher MessageNEERC 2008 Eastern Subregional586760

1655Somali PiratesNEERC 2008 Eastern Subregional1632037

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1784196

1657Cube SnakeNEERC 2008 Eastern Subregional2421399

1658Sum of DigitsNEERC 2008 Eastern Subregional1442243

1659Regular TrianglesNEERC 2008 Eastern Subregional565613

1711Code NamesNEERC 2009 Eastern Subregional2570124

1712Cipher GrilleNEERC 2009 Eastern Subregional408078

1713Key SubstringsNEERC 2009 Eastern Subregional539584

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1032838

1715Another Ball KillerNEERC 2009 Eastern Subregional327952

1716Alternative SolutionNEERC 2009 Eastern Subregional409765

1717Eligibility RulesNEERC 2009 Eastern Subregional1252375

1718RejudgeNEERC 2009 Eastern Subregional1145278

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2231376

1720Summit Online JudgeNEERC 2009 Eastern Subregional341914

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional575548

1800Murphy's LawNEERC 2010 Eastern Subregional1551184

1801The Revolution CupNEERC 2010 Eastern Subregional455212

1802Cube PuzzleNEERC 2010 Eastern Subregional1481814

1803The Czechs' RiflesNEERC 2010 Eastern Subregional432649

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional797355

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional316879

1806Mobile TelegraphsNEERC 2010 Eastern Subregional479586

1807Cartridges for MaximNEERC 2010 Eastern Subregional2051333

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1601686

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional527534

1885Passenger ComfortNEERC 2011 Eastern Subregional1294196

1886Trip 2NEERC 2011 Eastern Subregional1301828

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2211108

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional607415

1889Airport AnnouncementsNEERC 2011 Eastern Subregional940269

1890Money out of Thin AirNEERC 2011 Eastern Subregional559450

1891Language OceanNEERC 2011 Eastern Subregional419597

1892Morning in KoltsovoNEERC 2011 Eastern Subregional329755

1893A380NEERC 2011 Eastern Subregional468255

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1371741

1895Steaks on BoardNEERC 2011 Eastern Subregional1032265

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional690233

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional523662

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional249877

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1371544

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional464054

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1203187

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional722768

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1117201

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional272805

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1161802

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional372594

1990PodracingNEERC 2013 Eastern Subregional230825

1991The battle near the swampNEERC 2013 Eastern Subregional445944

1992CVSNEERC 2013 Eastern Subregional575339

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1138173

1994The Emperor's planNEERC 2013 Eastern Subregional217872

1995Illegal spicesNEERC 2013 Eastern Subregional401482

1996Cipher Message 3NEERC 2013 Eastern Subregional1851016

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional428452

1998The old PadawanNEERC 2013 Eastern Subregional649301

1999The secret moduleNEERC 2013 Eastern Subregional265501

2012About Grisha N.NEERC 2014 Eastern Subregional1016517

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional220746

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional361463

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional700242

2016Magic and ScienceNEERC 2014 Eastern Subregional166601

2017Best of a bad lotNEERC 2014 Eastern Subregional1471093

2018The Debut AlbumNEERC 2014 Eastern Subregional177496

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional745227

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1296131

2021Scarily interesting!NEERC 2014 Eastern Subregional474355

2022Riding a ToadNEERC 2014 Eastern Subregional482959

2023Donald is a postmanNEERC 2014 Eastern Subregional487535

2074Timus problems classifierQualification of Eastern Subregional 2015176729

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015442510

2076VasianaQualification of Eastern Subregional 2015116455

2077ReductionsQualification of Eastern Subregional 2015155422