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Problem set. NEERC Regionals


1053PinocchioNEERC 2000 Central Subregional4279318

1054Hanoi TowerNEERC 2000 Central Subregional2093649

1055CombinationsNEERC 2000 Central Subregional3421398

1056Computer NetNEERC 2000 Central Subregional2573529

1057Amount of DegreesNEERC 2000 Central Subregional1946698

1058ChocolateNEERC 2000 Central Subregional4702838

1059ExpressionNEERC 2000 Central Subregional2140635

1133Fibonacci SequenceNEERC 2001 Central Subregional2069218

1134CardsNEERC 2001 Central Subregional2514180

1135RecruitsNEERC 2001 Central Subregional2791162

1136ParliamentNEERC 2001 Central Subregional459399

1137Bus RoutesNEERC 2001 Central Subregional1311344

1138Integer PercentageNEERC 2001 Central Subregional2282198

1139City BlocksNEERC 2001 Central Subregional588377

1140Swamp IncidentNEERC 2001 Central Subregional1230366

1158Censored!NEERC 2001 Northern Subregional900500

1159FenceNEERC 2001 Northern Subregional617725

1160NetworkNEERC 2001 Northern Subregional1696271

1161StripiesNEERC 2001 Northern Subregional499791

1162Currency ExchangeNEERC 2001 Northern Subregional1102409

1163ChapaevNEERC 2001 Northern Subregional2261927

1164FillwordNEERC 2001 Northern Subregional2293197

1165SubnumberNEERC 2001 Northern Subregional504885

1166Funny Card GameNEERC 2001 Northern Subregional1213568

1224SpiralNEERC 2002 Central Subregional685567

1225FlagsNEERC 2002 Central Subregional1236737

1226esreveR redrONEERC 2002 Central Subregional4160111

1227Rally ChampionshipNEERC 2002 Central Subregional1501305

1228ArrayNEERC 2002 Central Subregional4440104

1229Strong BrickworkNEERC 2002 Central Subregional1222374

1230Introspective ProgramNEERC 2002 Central Subregional620732

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2072125

1232Asteroid LandingNEERC 2002 Central Subregional1852365

1274Fractional ArithmeticNEERC 2003 Central Subregional677681

1275Knights of the Round TableNEERC 2003 Central Subregional1622720

1276TrainNEERC 2003 Central Subregional594775

1277Cops and ThievesNEERC 2003 Central Subregional587784

1278“… Connecting People”NEERC 2003 Central Subregional466983

1279WarehouseNEERC 2003 Central Subregional1112417

1280Topological SortingNEERC 2003 Central Subregional3257143

1281River BasinNEERC 2003 Central Subregional3251397

1282Game TreeNEERC 2003 Central Subregional1390334

1500Pass LicensesNEERC 2006 Eastern Subregional682630

1501Sense of BeautyNEERC 2006 Eastern Subregional1637265

1502Domino DotsNEERC 2006 Eastern Subregional589474

1503PolynomialNEERC 2006 Eastern Subregional2291825

1504Good MannersNEERC 2006 Eastern Subregional1742371

1505Oil TransferNEERC 2006 Eastern Subregional1353009

1506Columns of NumbersNEERC 2006 Eastern Subregional2838153

1507Difficult DecisionNEERC 2006 Eastern Subregional1002431

1508Japanese PuzzleNEERC 2006 Eastern Subregional2421731

1509Domino RecognitionNEERC 2006 Eastern Subregional1063761

1510OrderNEERC 2006 Eastern Subregional497088

1582BookmakersNEERC 2007 Eastern Subregional3447115

1583CheeseNEERC 2007 Eastern Subregional2081831

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3051267

1585PenguinsNEERC 2007 Eastern Subregional997640

1586Threeprime NumbersNEERC 2007 Eastern Subregional2666149

1587Flying PigNEERC 2007 Eastern Subregional494792

1588JamaicaNEERC 2007 Eastern Subregional1261314

1589SokobanNEERC 2007 Eastern Subregional822174

1590Bacon’s CipherNEERC 2007 Eastern Subregional1864213

1591Abstract ThinkingNEERC 2007 Eastern Subregional3811021

1592Chinese WatchesNEERC 2007 Eastern Subregional668589

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional426991

1650BillionairesNEERC 2008 Eastern Subregional846425

1651Shortest SubchainNEERC 2008 Eastern Subregional1052342

1652Banking CrisisNEERC 2008 Eastern Subregional1322560

1653Death ConveyorNEERC 2008 Eastern Subregional426991

1654Cipher MessageNEERC 2008 Eastern Subregional614959

1655Somali PiratesNEERC 2008 Eastern Subregional1781934

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1831197

1657Cube SnakeNEERC 2008 Eastern Subregional2451426

1658Sum of DigitsNEERC 2008 Eastern Subregional1511239

1659Regular TrianglesNEERC 2008 Eastern Subregional582614

1711Code NamesNEERC 2009 Eastern Subregional2663124

1712Cipher GrilleNEERC 2009 Eastern Subregional421079

1713Key SubstringsNEERC 2009 Eastern Subregional556587

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1062865

1715Another Ball KillerNEERC 2009 Eastern Subregional332972

1716Alternative SolutionNEERC 2009 Eastern Subregional424766

1717Eligibility RulesNEERC 2009 Eastern Subregional1252461

1718RejudgeNEERC 2009 Eastern Subregional1171281

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2281396

1720Summit Online JudgeNEERC 2009 Eastern Subregional351920

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional601544

1800Murphy's LawNEERC 2010 Eastern Subregional1647180

1801The Revolution CupNEERC 2010 Eastern Subregional475243

1802Cube PuzzleNEERC 2010 Eastern Subregional1481892

1803The Czechs' RiflesNEERC 2010 Eastern Subregional443660

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional821360

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional327887

1806Mobile TelegraphsNEERC 2010 Eastern Subregional563522

1807Cartridges for MaximNEERC 2010 Eastern Subregional2111352

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1611748

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional543540

1885Passenger ComfortNEERC 2011 Eastern Subregional1360196

1886Trip 2NEERC 2011 Eastern Subregional1341866

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2521025

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional628421

1889Airport AnnouncementsNEERC 2011 Eastern Subregional975273

1890Money out of Thin AirNEERC 2011 Eastern Subregional591447

1891Language OceanNEERC 2011 Eastern Subregional430611

1892Morning in KoltsovoNEERC 2011 Eastern Subregional335779

1893A380NEERC 2011 Eastern Subregional489055

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1421768

1895Steaks on BoardNEERC 2011 Eastern Subregional1122202

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional728833

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional533813

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional253913

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1391612

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional474215

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1250191

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional732894

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1179202

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional286812

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1201848

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional386607

1990PodracingNEERC 2013 Eastern Subregional235864

1991The battle near the swampNEERC 2013 Eastern Subregional478344

1992CVSNEERC 2013 Eastern Subregional628332

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1189177

1994The Emperor's planNEERC 2013 Eastern Subregional226897

1995Illegal spicesNEERC 2013 Eastern Subregional415498

1996Cipher Message 3NEERC 2013 Eastern Subregional1961028

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional450460

1998The old PadawanNEERC 2013 Eastern Subregional679307

1999The secret moduleNEERC 2013 Eastern Subregional265882

2012About Grisha N.NEERC 2014 Eastern Subregional1108817

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional227784

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional389466

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional740248

2016Magic and ScienceNEERC 2014 Eastern Subregional176882

2017Best of a bad lotNEERC 2014 Eastern Subregional1541133

2018The Debut AlbumNEERC 2014 Eastern Subregional192496

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional780235

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1397132

2021Scarily interesting!NEERC 2014 Eastern Subregional491371

2022Riding a ToadNEERC 2014 Eastern Subregional493149

2023Donald is a postmanNEERC 2014 Eastern Subregional519436

2074Timus problems classifierQualification of Eastern Subregional 2015186767

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015462685

2076VasianaQualification of Eastern Subregional 2015136536

2077ReductionsQualification of Eastern Subregional 2015175568