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Problem set. NEERC Regionals


IDTitleSourceAuthorsDifficulty

1053PinocchioNEERC 2000 Central Subregional4261321

1054Tower of HanoiNEERC 2000 Central Subregional2089653

1055CombinationsNEERC 2000 Central Subregional3428398

1056Computer NetNEERC 2000 Central Subregional2578529

1057Amount of DegreesNEERC 2000 Central Subregional1948700

1058ChocolateNEERC 2000 Central Subregional4722835

1059ExpressionNEERC 2000 Central Subregional2149634

1133Fibonacci SequenceNEERC 2001 Central Subregional2075218

1134CardsNEERC 2001 Central Subregional2522180

1135RecruitsNEERC 2001 Central Subregional2797162

1136ParliamentNEERC 2001 Central Subregional459899

1137Bus RoutesNEERC 2001 Central Subregional1318343

1138Integer PercentageNEERC 2001 Central Subregional2286198

1139City BlocksNEERC 2001 Central Subregional589677

1140Swamp IncidentNEERC 2001 Central Subregional1234366

1158Censored!NEERC 2001 Northern Subregional903500

1159FenceNEERC 2001 Northern Subregional620724

1160NetworkNEERC 2001 Northern Subregional1706270

1161StripiesNEERC 2001 Northern Subregional501291

1162Currency ExchangeNEERC 2001 Northern Subregional1104410

1163ChapaevNEERC 2001 Northern Subregional2261933

1164FillwordNEERC 2001 Northern Subregional2296198

1165SubnumberNEERC 2001 Northern Subregional507882

1166Funny Card GameNEERC 2001 Northern Subregional1213579

1224SpiralNEERC 2002 Central Subregional687567

1225FlagsNEERC 2002 Central Subregional1242337

1226esreveR redrONEERC 2002 Central Subregional4167111

1227Rally ChampionshipNEERC 2002 Central Subregional1506305

1228ArrayNEERC 2002 Central Subregional4447104

1229Strong BrickworkNEERC 2002 Central Subregional1234372

1230Introspective ProgramNEERC 2002 Central Subregional621733

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2072131

1232Asteroid LandingNEERC 2002 Central Subregional1862359

1274Fractional ArithmeticNEERC 2003 Central Subregional678682

1275Knights of the Round TableNEERC 2003 Central Subregional1622728

1276TrainNEERC 2003 Central Subregional597773

1277Cops and ThievesNEERC 2003 Central Subregional589783

1278“… Connecting People”NEERC 2003 Central Subregional467984

1279WarehouseNEERC 2003 Central Subregional1117416

1280Topological SortingNEERC 2003 Central Subregional3270143

1281River BasinNEERC 2003 Central Subregional3271392

1282Game TreeNEERC 2003 Central Subregional1392335

1500Pass LicensesNEERC 2006 Eastern Subregional685630

1501Sense of BeautyNEERC 2006 Eastern Subregional1642265

1502Domino DotsNEERC 2006 Eastern Subregional591374

1503PolynomialNEERC 2006 Eastern Subregional2291831

1504Good MannersNEERC 2006 Eastern Subregional1772341

1505Oil TransferNEERC 2006 Eastern Subregional1353018

1506Columns of NumbersNEERC 2006 Eastern Subregional2845153

1507Difficult DecisionNEERC 2006 Eastern Subregional1005431

1508Japanese PuzzleNEERC 2006 Eastern Subregional2441723

1509Domino RecognitionNEERC 2006 Eastern Subregional1063773

1510OrderNEERC 2006 Eastern Subregional498588

1582BookmakersNEERC 2007 Eastern Subregional3452116

1583CheeseNEERC 2007 Eastern Subregional2091829

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3051272

1585PenguinsNEERC 2007 Eastern Subregional1001340

1586Threeprime NumbersNEERC 2007 Eastern Subregional2674149

1587Flying PigNEERC 2007 Eastern Subregional496792

1588JamaicaNEERC 2007 Eastern Subregional1267314

1589SokobanNEERC 2007 Eastern Subregional921086

1590Bacon’s CipherNEERC 2007 Eastern Subregional1873213

1591Abstract ThinkingNEERC 2007 Eastern Subregional3811025

1592Chinese WatchesNEERC 2007 Eastern Subregional671588

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional427022

1650BillionairesNEERC 2008 Eastern Subregional855422

1651Shortest SubchainNEERC 2008 Eastern Subregional1060341

1652Banking CrisisNEERC 2008 Eastern Subregional1322571

1653Death ConveyorNEERC 2008 Eastern Subregional446761

1654Cipher MessageNEERC 2008 Eastern Subregional618159

1655Somali PiratesNEERC 2008 Eastern Subregional1781942

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1836198

1657Cube SnakeNEERC 2008 Eastern Subregional2461426

1658Sum of DigitsNEERC 2008 Eastern Subregional1525238

1659Regular TrianglesNEERC 2008 Eastern Subregional586613

1711Code NamesNEERC 2009 Eastern Subregional2666125

1712Cipher GrilleNEERC 2009 Eastern Subregional422579

1713Key SubstringsNEERC 2009 Eastern Subregional557589

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1062879

1715Another Ball KillerNEERC 2009 Eastern Subregional332976

1716Alternative SolutionNEERC 2009 Eastern Subregional428762

1717Eligibility RulesNEERC 2009 Eastern Subregional1252474

1718RejudgeNEERC 2009 Eastern Subregional1174282

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2291397

1720Summit Online JudgeNEERC 2009 Eastern Subregional351925

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional603545

1800Murphy's LawNEERC 2010 Eastern Subregional1652181

1801The Revolution CupNEERC 2010 Eastern Subregional475274

1802Cube PuzzleNEERC 2010 Eastern Subregional1491891

1803The Czechs' RiflesNEERC 2010 Eastern Subregional444662

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional825360

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional330884

1806Mobile TelegraphsNEERC 2010 Eastern Subregional567521

1807Cartridges for MaximNEERC 2010 Eastern Subregional2121354

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1611758

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional545542

1885Passenger ComfortNEERC 2011 Eastern Subregional1363197

1886Trip 2NEERC 2011 Eastern Subregional1351866

1887Frequent Flyer CardNEERC 2011 Eastern Subregional262995

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional634420

1889Airport AnnouncementsNEERC 2011 Eastern Subregional978274

1890Money out of Thin AirNEERC 2011 Eastern Subregional591450

1891Language OceanNEERC 2011 Eastern Subregional432612

1892Morning in KoltsovoNEERC 2011 Eastern Subregional338777

1893A380NEERC 2011 Eastern Subregional492155

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1441757

1895Steaks on BoardNEERC 2011 Eastern Subregional1132199

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional733133

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional533844

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional254917

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1411604

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional474248

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1256191

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional732917

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1183203

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional289810

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1211848

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional389607

1990PodracingNEERC 2013 Eastern Subregional237865

1991The battle near the swampNEERC 2013 Eastern Subregional480644

1992CVSNEERC 2013 Eastern Subregional641328

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1195177

1994The Emperor's planNEERC 2013 Eastern Subregional231887

1995Illegal spicesNEERC 2013 Eastern Subregional417501

1996Cipher Message 3NEERC 2013 Eastern Subregional1971033

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional455460

1998The old PadawanNEERC 2013 Eastern Subregional680310

1999The secret moduleNEERC 2013 Eastern Subregional265937

2012About Grisha N.NEERC 2014 Eastern Subregional1121017

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional229786

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional392467

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional743249

2016Magic and ScienceNEERC 2014 Eastern Subregional176957

2017Best of a bad lotNEERC 2014 Eastern Subregional1551139

2018The Debut AlbumNEERC 2014 Eastern Subregional193996

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional784237

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1405133

2021Scarily interesting!NEERC 2014 Eastern Subregional495372

2022Riding a ToadNEERC 2014 Eastern Subregional493184

2023Donald is a postmanNEERC 2014 Eastern Subregional523236

2074Timus problems classifierQualification of Eastern Subregional 2015188770

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015462723

2076VasianaQualification of Eastern Subregional 2015136629

2077ReductionsQualification of Eastern Subregional 2015175647