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Problem set. NEERC Regionals


1053PinocchioNEERC 2000 Central Subregional4157314

1054Hanoi TowerNEERC 2000 Central Subregional1987655

1055CombinationsNEERC 2000 Central Subregional3310394

1056Computer NetNEERC 2000 Central Subregional2449532

1057Amount of DegreesNEERC 2000 Central Subregional1842706

1058ChocolateNEERC 2000 Central Subregional4392906

1059ExpressionNEERC 2000 Central Subregional2085624

1133Fibonacci SequenceNEERC 2001 Central Subregional2370183

1134CardsNEERC 2001 Central Subregional2441178

1135RecruitsNEERC 2001 Central Subregional2651164

1136ParliamentNEERC 2001 Central Subregional4351100

1137Bus RoutesNEERC 2001 Central Subregional1447299

1138Integer PercentageNEERC 2001 Central Subregional2176199

1139City BlocksNEERC 2001 Central Subregional555078

1140Swamp IncidentNEERC 2001 Central Subregional1170369

1158Censored!NEERC 2001 Northern Subregional857503

1159FenceNEERC 2001 Northern Subregional588730

1160NetworkNEERC 2001 Northern Subregional1459302

1161StripiesNEERC 2001 Northern Subregional473492

1162Currency ExchangeNEERC 2001 Northern Subregional970445

1163ChapaevNEERC 2001 Northern Subregional2151939

1164FillwordNEERC 2001 Northern Subregional2170200

1165SubnumberNEERC 2001 Northern Subregional490873

1166Funny Card GameNEERC 2001 Northern Subregional1163566

1224SpiralNEERC 2002 Central Subregional646868

1225FlagsNEERC 2002 Central Subregional1136939

1226esreveR redrONEERC 2002 Central Subregional3944112

1227Rally ChampionshipNEERC 2002 Central Subregional1398314

1228ArrayNEERC 2002 Central Subregional4236104

1229Strong BrickworkNEERC 2002 Central Subregional1124390

1230Introspective ProgramNEERC 2002 Central Subregional599727

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1962149

1232Asteroid LandingNEERC 2002 Central Subregional1852271

1274Fractional ArithmeticNEERC 2003 Central Subregional648683

1275Knights of the Round TableNEERC 2003 Central Subregional1582677

1276TrainNEERC 2003 Central Subregional562786

1277Cops and ThievesNEERC 2003 Central Subregional562786

1278“… Connecting People”NEERC 2003 Central Subregional449980

1279WarehouseNEERC 2003 Central Subregional1066418

1280Topological SortingNEERC 2003 Central Subregional3007149

1281River BasinNEERC 2003 Central Subregional3141388

1282Game TreeNEERC 2003 Central Subregional1302343

1500Pass LicensesNEERC 2006 Eastern Subregional641641

1501Sense of BeautyNEERC 2006 Eastern Subregional1529271

1502Domino DotsNEERC 2006 Eastern Subregional549076

1503PolynomialNEERC 2006 Eastern Subregional2251775

1504Good MannersNEERC 2006 Eastern Subregional1732279

1505Oil TransferNEERC 2006 Eastern Subregional1302979

1506Columns of NumbersNEERC 2006 Eastern Subregional2598160

1507Difficult DecisionNEERC 2006 Eastern Subregional968426

1508Japanese PuzzleNEERC 2006 Eastern Subregional2371689

1509Domino RecognitionNEERC 2006 Eastern Subregional1033691

1510OrderNEERC 2006 Eastern Subregional463990

1582BookmakersNEERC 2007 Eastern Subregional3235117

1583CheeseNEERC 2007 Eastern Subregional2051761

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2971233

1585PenguinsNEERC 2007 Eastern Subregional901142

1586Threeprime NumbersNEERC 2007 Eastern Subregional2435155

1587Flying PigNEERC 2007 Eastern Subregional465797

1588JamaicaNEERC 2007 Eastern Subregional1183317

1589SokobanNEERC 2007 Eastern Subregional821036

1590Bacon’s CipherNEERC 2007 Eastern Subregional1698222

1591Abstract ThinkingNEERC 2007 Eastern Subregional3661007

1592Chinese WatchesNEERC 2007 Eastern Subregional628594

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396976

1650BillionairesNEERC 2008 Eastern Subregional720468

1651Shortest SubchainNEERC 2008 Eastern Subregional969349

1652Banking CrisisNEERC 2008 Eastern Subregional1242551

1653Death ConveyorNEERC 2008 Eastern Subregional387121

1654Cipher MessageNEERC 2008 Eastern Subregional551162

1655Somali PiratesNEERC 2008 Eastern Subregional1582035

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1730196

1657Cube SnakeNEERC 2008 Eastern Subregional2411362

1658Sum of DigitsNEERC 2008 Eastern Subregional1388245

1659Regular TrianglesNEERC 2008 Eastern Subregional542619

1711Code NamesNEERC 2009 Eastern Subregional2494124

1712Cipher GrilleNEERC 2009 Eastern Subregional394178

1713Key SubstringsNEERC 2009 Eastern Subregional514591

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1002814

1715Another Ball KillerNEERC 2009 Eastern Subregional326921

1716Alternative SolutionNEERC 2009 Eastern Subregional399757

1717Eligibility RulesNEERC 2009 Eastern Subregional1192399

1718RejudgeNEERC 2009 Eastern Subregional1118274

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2201346

1720Summit Online JudgeNEERC 2009 Eastern Subregional339887

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional561542

1800Murphy's LawNEERC 2010 Eastern Subregional1452188

1801The Revolution CupNEERC 2010 Eastern Subregional425288

1802Cube PuzzleNEERC 2010 Eastern Subregional1461763

1803The Czechs' RiflesNEERC 2010 Eastern Subregional419641

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional785346

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional303879

1806Mobile TelegraphsNEERC 2010 Eastern Subregional461584

1807Cartridges for MaximNEERC 2010 Eastern Subregional1961335

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1551667

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional511528

1885Passenger ComfortNEERC 2011 Eastern Subregional1221198

1886Trip 2NEERC 2011 Eastern Subregional1261792

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2141088

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional581412

1889Airport AnnouncementsNEERC 2011 Eastern Subregional911265

1890Money out of Thin AirNEERC 2011 Eastern Subregional526455

1891Language OceanNEERC 2011 Eastern Subregional413576

1892Morning in KoltsovoNEERC 2011 Eastern Subregional325728

1893A380NEERC 2011 Eastern Subregional435456

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1321717

1895Steaks on BoardNEERC 2011 Eastern Subregional992236

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional641633

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional523457

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional240857

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1351478

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional453897

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1137187

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional722614

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1058201

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional259797

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1091801

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional367569

1990PodracingNEERC 2013 Eastern Subregional223794

1991The battle near the swampNEERC 2013 Eastern Subregional408145

1992CVSNEERC 2013 Eastern Subregional530342

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1072171

1994The Emperor's planNEERC 2013 Eastern Subregional206856

1995Illegal spicesNEERC 2013 Eastern Subregional382472

1996Cipher Message 3NEERC 2013 Eastern Subregional182963

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional411439

1998The old PadawanNEERC 2013 Eastern Subregional610298

1999The secret moduleNEERC 2013 Eastern Subregional255283

2012About Grisha N.NEERC 2014 Eastern Subregional904417

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional210719

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional346444

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional650240

2016Magic and ScienceNEERC 2014 Eastern Subregional156323

2017Best of a bad lotNEERC 2014 Eastern Subregional1441026

2018The Debut AlbumNEERC 2014 Eastern Subregional160598

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional708220

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1188132

2021Scarily interesting!NEERC 2014 Eastern Subregional442350

2022Riding a ToadNEERC 2014 Eastern Subregional462823

2023Donald is a postmanNEERC 2014 Eastern Subregional437636

2074Timus problems classifierQualification of Eastern Subregional 2015168682

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015412380

2076VasianaQualification of Eastern Subregional 201586744

2077ReductionsQualification of Eastern Subregional 2015135278