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Problem set. NEERC Regionals

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

IDTitleSourceAuthorsDifficulty

2012About Grisha N.NEERC 2014 Eastern Subregional1460716

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional877233

1225FlagsNEERC 2002 Central Subregional1396135

2023Donald is a postmanNEERC 2014 Eastern Subregional638437

1585PenguinsNEERC 2007 Eastern Subregional1153138

1991The battle near the swampNEERC 2013 Eastern Subregional575845

1893A380NEERC 2011 Eastern Subregional550657

1654Cipher MessageNEERC 2008 Eastern Subregional691758

1224SpiralNEERC 2002 Central Subregional749966

1502Domino DotsNEERC 2006 Eastern Subregional644073

1139City BlocksNEERC 2001 Central Subregional634377

1712Cipher GrilleNEERC 2009 Eastern Subregional451883

1510OrderNEERC 2006 Eastern Subregional544687

1161StripiesNEERC 2001 Northern Subregional537791

1136ParliamentNEERC 2001 Central Subregional493499

2018The Debut AlbumNEERC 2014 Eastern Subregional2342101

1228ArrayNEERC 2002 Central Subregional4632107

1226esreveR redrONEERC 2002 Central Subregional4393113

1582BookmakersNEERC 2007 Eastern Subregional3631120

1711Code NamesNEERC 2009 Eastern Subregional2880130

1506Columns of NumbersNEERC 2006 Eastern Subregional3338141

1280Topological SortingNEERC 2003 Central Subregional3521142

1586Threeprime NumbersNEERC 2007 Eastern Subregional3027144

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1594148

1135RecruitsNEERC 2001 Central Subregional3032161

1160NetworkNEERC 2001 Northern Subregional3018164

1800Murphy's LawNEERC 2010 Eastern Subregional2030169

1590Bacon’s CipherNEERC 2007 Eastern Subregional2293190

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1353192

1134CardsNEERC 2001 Central Subregional2513194

1885Passenger ComfortNEERC 2011 Eastern Subregional1599196

1658Sum of DigitsNEERC 2008 Eastern Subregional2037198

1138Integer PercentageNEERC 2001 Central Subregional2432200

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1995202

1164FillwordNEERC 2001 Northern Subregional2403203

1650BillionairesNEERC 2008 Eastern Subregional1931208

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1371209

1133Fibonacci SequenceNEERC 2001 Central Subregional2193222

1806Mobile TelegraphsNEERC 2010 Eastern Subregional1514226

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1269226

1162Currency ExchangeNEERC 2001 Northern Subregional2130229

1501Sense of BeautyNEERC 2006 Eastern Subregional1776264

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional867271

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional821286

1889Airport AnnouncementsNEERC 2011 Eastern Subregional1072292

1227Rally ChampionshipNEERC 2002 Central Subregional1648299

1718RejudgeNEERC 2009 Eastern Subregional1244299

1588JamaicaNEERC 2007 Eastern Subregional1349322

1137Bus RoutesNEERC 2001 Central Subregional1492326

1053PinocchioNEERC 2000 Central Subregional4397334

1282Game TreeNEERC 2003 Central Subregional1485336

1651Shortest SubchainNEERC 2008 Eastern Subregional1164344

1998The old PadawanNEERC 2013 Eastern Subregional738351

1992CVSNEERC 2013 Eastern Subregional696371

1140Swamp IncidentNEERC 2001 Central Subregional1295375

1229Strong BrickworkNEERC 2002 Central Subregional1299379

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional865393

1055CombinationsNEERC 2000 Central Subregional3555413

1279WarehouseNEERC 2003 Central Subregional1184420

2021Scarily interesting!NEERC 2014 Eastern Subregional547427

1507Difficult DecisionNEERC 2006 Eastern Subregional1062441

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional698446

1890Money out of Thin AirNEERC 2011 Eastern Subregional695448

1158Censored!NEERC 2001 Northern Subregional964503

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional446522

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional487528

1056Centers of the NetNEERC 2000 Central Subregional2695545

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional650568

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional585578

1995Illegal spicesNEERC 2013 Eastern Subregional444578

1592Chinese WatchesNEERC 2007 Eastern Subregional721599

1713Key SubstringsNEERC 2009 Eastern Subregional597618

1500Pass LicensesNEERC 2006 Eastern Subregional736633

1659Regular TrianglesNEERC 2008 Eastern Subregional621641

1054Tower of HanoiNEERC 2000 Central Subregional2284642

1059ExpressionNEERC 2000 Central Subregional2212663

1891Language OceanNEERC 2011 Eastern Subregional457676

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional406695

1274Fractional ArithmeticNEERC 2003 Central Subregional710697

1057Amount of DegreesNEERC 2000 Central Subregional2053714

1803The Czechs' RiflesNEERC 2010 Eastern Subregional465724

1276TrainNEERC 2003 Central Subregional675733

1159FenceNEERC 2001 Northern Subregional644749

1230Introspective ProgramNEERC 2002 Central Subregional646756

1716Alternative SolutionNEERC 2009 Eastern Subregional485758

1277Cops and ThievesNEERC 2003 Central Subregional626789

1587Flying PigNEERC 2007 Eastern Subregional534804

1892Morning in KoltsovoNEERC 2011 Eastern Subregional357860

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional309906

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional251912

1165SubnumberNEERC 2001 Northern Subregional525915

2074Timus problems classifierQualification of Eastern Subregional 2015207944

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional344971

1720Summit Online JudgeNEERC 2009 Eastern Subregional374977

1278“… Connecting People”NEERC 2003 Central Subregional502980

1715Another Ball KillerNEERC 2009 Eastern Subregional3651000

1990PodracingNEERC 2013 Eastern Subregional2491013

1994The Emperor's planNEERC 2013 Eastern Subregional2471020

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2921045

1591Abstract ThinkingNEERC 2007 Eastern Subregional4051055

1996Cipher Message 3NEERC 2013 Eastern Subregional2091198

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional2281214

2017Best of a bad lotNEERC 2014 Eastern Subregional1741293

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3161342

1281River BasinNEERC 2003 Central Subregional3491398

1807Cartridges for MaximNEERC 2010 Eastern Subregional2311427

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2421488

1657Cube SnakeNEERC 2008 Eastern Subregional2601497

1894Non-Flying WeatherNEERC 2011 Eastern Subregional2001502

1508Japanese PuzzleNEERC 2006 Eastern Subregional2781640

1503PolynomialNEERC 2006 Eastern Subregional2611743

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1491817

1655Somali PiratesNEERC 2008 Eastern Subregional2071863

1583CheeseNEERC 2007 Eastern Subregional2231878

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1711899

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1351993

1886Trip 2NEERC 2011 Eastern Subregional1452036

1802Cube PuzzleNEERC 2010 Eastern Subregional1572059

1895Steaks on BoardNEERC 2011 Eastern Subregional1402104

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2222136

1717Eligibility RulesNEERC 2009 Eastern Subregional1642155

1504Good MannersNEERC 2006 Eastern Subregional2032218

1232Asteroid LandingNEERC 2002 Central Subregional2022338

1275Knights of the Round TableNEERC 2003 Central Subregional2002390

1652Banking CrisisNEERC 2008 Eastern Subregional1392713

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015642767

1058ChocolateNEERC 2000 Central Subregional5182784

1505Oil TransferNEERC 2006 Eastern Subregional1532898

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1103125

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional803210

1509Domino RecognitionNEERC 2006 Eastern Subregional1253499

1166Funny Card GameNEERC 2001 Northern Subregional1333508

2022Riding a ToadNEERC 2014 Eastern Subregional573552

1163ChapaevNEERC 2001 Northern Subregional1044296

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional574312

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional554445

1801The Revolution CupNEERC 2010 Eastern Subregional525545

1653Death ConveyorNEERC 2008 Eastern Subregional516628

1999The secret moduleNEERC 2013 Eastern Subregional296725

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional496853

2077ReductionsQualification of Eastern Subregional 2015187313

2076VasianaQualification of Eastern Subregional 2015167876

2016Magic and ScienceNEERC 2014 Eastern Subregional188499

1589SokobanNEERC 2007 Eastern Subregional1418234
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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