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Problem set. NEERC Regionals


IDTitleSourceAuthorsDifficulty

1053PinocchioNEERC 2000 Central Subregional4146312

1054Hanoi TowerNEERC 2000 Central Subregional1978653

1055CombinationsNEERC 2000 Central Subregional3292393

1056Computer NetNEERC 2000 Central Subregional2436531

1057Amount of DegreesNEERC 2000 Central Subregional1830705

1058ChocolateNEERC 2000 Central Subregional4362904

1059ExpressionNEERC 2000 Central Subregional2073623

1133Fibonacci SequenceNEERC 2001 Central Subregional2348183

1134CardsNEERC 2001 Central Subregional2420178

1135RecruitsNEERC 2001 Central Subregional2631164

1136ParliamentNEERC 2001 Central Subregional4313100

1137Bus RoutesNEERC 2001 Central Subregional1435299

1138Integer PercentageNEERC 2001 Central Subregional2163199

1139City BlocksNEERC 2001 Central Subregional549579

1140Swamp IncidentNEERC 2001 Central Subregional1165368

1158Censored!NEERC 2001 Northern Subregional854501

1159FenceNEERC 2001 Northern Subregional585728

1160NetworkNEERC 2001 Northern Subregional1403312

1161StripiesNEERC 2001 Northern Subregional469992

1162Currency ExchangeNEERC 2001 Northern Subregional933459

1163ChapaevNEERC 2001 Northern Subregional2141933

1164FillwordNEERC 2001 Northern Subregional2152200

1165SubnumberNEERC 2001 Northern Subregional489868

1166Funny Card GameNEERC 2001 Northern Subregional1163541

1224SpiralNEERC 2002 Central Subregional639469

1225FlagsNEERC 2002 Central Subregional1126339

1226esreveR redrONEERC 2002 Central Subregional3904112

1227Rally ChampionshipNEERC 2002 Central Subregional1392314

1228ArrayNEERC 2002 Central Subregional4212104

1229Strong BrickworkNEERC 2002 Central Subregional1121389

1230Introspective ProgramNEERC 2002 Central Subregional597724

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1962134

1232Asteroid LandingNEERC 2002 Central Subregional1852254

1274Fractional ArithmeticNEERC 2003 Central Subregional641686

1275Knights of the Round TableNEERC 2003 Central Subregional1582658

1276TrainNEERC 2003 Central Subregional561782

1277Cops and ThievesNEERC 2003 Central Subregional561782

1278“… Connecting People”NEERC 2003 Central Subregional448975

1279WarehouseNEERC 2003 Central Subregional1059418

1280Topological SortingNEERC 2003 Central Subregional2964150

1281River BasinNEERC 2003 Central Subregional3131383

1282Game TreeNEERC 2003 Central Subregional1293343

1500Pass LicensesNEERC 2006 Eastern Subregional637640

1501Sense of BeautyNEERC 2006 Eastern Subregional1514271

1502Domino DotsNEERC 2006 Eastern Subregional543176

1503PolynomialNEERC 2006 Eastern Subregional2231776

1504Good MannersNEERC 2006 Eastern Subregional1732261

1505Oil TransferNEERC 2006 Eastern Subregional1302955

1506Columns of NumbersNEERC 2006 Eastern Subregional2578160

1507Difficult DecisionNEERC 2006 Eastern Subregional961426

1508Japanese PuzzleNEERC 2006 Eastern Subregional2361682

1509Domino RecognitionNEERC 2006 Eastern Subregional1033662

1510OrderNEERC 2006 Eastern Subregional458890

1582BookmakersNEERC 2007 Eastern Subregional3205117

1583CheeseNEERC 2007 Eastern Subregional2011778

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2971222

1585PenguinsNEERC 2007 Eastern Subregional883042

1586Threeprime NumbersNEERC 2007 Eastern Subregional2403155

1587Flying PigNEERC 2007 Eastern Subregional455807

1588JamaicaNEERC 2007 Eastern Subregional1173317

1589SokobanNEERC 2007 Eastern Subregional820841

1590Bacon’s CipherNEERC 2007 Eastern Subregional1674223

1591Abstract ThinkingNEERC 2007 Eastern Subregional366998

1592Chinese WatchesNEERC 2007 Eastern Subregional627589

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396900

1650BillionairesNEERC 2008 Eastern Subregional692482

1651Shortest SubchainNEERC 2008 Eastern Subregional960349

1652Banking CrisisNEERC 2008 Eastern Subregional1222561

1653Death ConveyorNEERC 2008 Eastern Subregional387044

1654Cipher MessageNEERC 2008 Eastern Subregional542462

1655Somali PiratesNEERC 2008 Eastern Subregional1572025

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1716196

1657Cube SnakeNEERC 2008 Eastern Subregional2411347

1658Sum of DigitsNEERC 2008 Eastern Subregional1366246

1659Regular TrianglesNEERC 2008 Eastern Subregional539616

1711Code NamesNEERC 2009 Eastern Subregional2462124

1712Cipher GrilleNEERC 2009 Eastern Subregional387779

1713Key SubstringsNEERC 2009 Eastern Subregional510588

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional992804

1715Another Ball KillerNEERC 2009 Eastern Subregional321923

1716Alternative SolutionNEERC 2009 Eastern Subregional397751

1717Eligibility RulesNEERC 2009 Eastern Subregional1182388

1718RejudgeNEERC 2009 Eastern Subregional1112272

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2181340

1720Summit Online JudgeNEERC 2009 Eastern Subregional337881

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional559537

1800Murphy's LawNEERC 2010 Eastern Subregional1434188

1801The Revolution CupNEERC 2010 Eastern Subregional415311

1802Cube PuzzleNEERC 2010 Eastern Subregional1451748

1803The Czechs' RiflesNEERC 2010 Eastern Subregional417634

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional783342

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional303865

1806Mobile TelegraphsNEERC 2010 Eastern Subregional438605

1807Cartridges for MaximNEERC 2010 Eastern Subregional1941328

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1551642

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional510521

1885Passenger ComfortNEERC 2011 Eastern Subregional1198198

1886Trip 2NEERC 2011 Eastern Subregional1261761

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2131074

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional576409

1889Airport AnnouncementsNEERC 2011 Eastern Subregional907261

1890Money out of Thin AirNEERC 2011 Eastern Subregional521451

1891Language OceanNEERC 2011 Eastern Subregional410570

1892Morning in KoltsovoNEERC 2011 Eastern Subregional322721

1893A380NEERC 2011 Eastern Subregional427756

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1311698

1895Steaks on BoardNEERC 2011 Eastern Subregional982217

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional624934

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional523386

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional237850

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1351448

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional453816

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1117186

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional722560

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1044199

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional258783

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1091764

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional366558

1990PodracingNEERC 2013 Eastern Subregional220784

1991The battle near the swampNEERC 2013 Eastern Subregional391146

1992CVSNEERC 2013 Eastern Subregional526336

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1056169

1994The Emperor's planNEERC 2013 Eastern Subregional205839

1995Illegal spicesNEERC 2013 Eastern Subregional379463

1996Cipher Message 3NEERC 2013 Eastern Subregional181944

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional406433

1998The old PadawanNEERC 2013 Eastern Subregional598297

1999The secret moduleNEERC 2013 Eastern Subregional255151

2012About Grisha N.NEERC 2014 Eastern Subregional881617

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional204716

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional339439

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional642235

2016Magic and ScienceNEERC 2014 Eastern Subregional156132

2017Best of a bad lotNEERC 2014 Eastern Subregional1391029

2018The Debut AlbumNEERC 2014 Eastern Subregional154299

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional700216

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1156131

2021Scarily interesting!NEERC 2014 Eastern Subregional429349

2022Riding a ToadNEERC 2014 Eastern Subregional462738

2023Donald is a postmanNEERC 2014 Eastern Subregional426336

2074Timus problems classifierQualification of Eastern Subregional 2015166661

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015372477

2076VasianaQualification of Eastern Subregional 201586467

2077ReductionsQualification of Eastern Subregional 2015135061