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Problem set. NEERC Regionals


1053PinocchioNEERC 2000 Central Subregional4164314

1054Hanoi TowerNEERC 2000 Central Subregional1992655

1055CombinationsNEERC 2000 Central Subregional3312395

1056Computer NetNEERC 2000 Central Subregional2456532

1057Amount of DegreesNEERC 2000 Central Subregional1845707

1058ChocolateNEERC 2000 Central Subregional4422895

1059ExpressionNEERC 2000 Central Subregional2091624

1133Fibonacci SequenceNEERC 2001 Central Subregional2380183

1134CardsNEERC 2001 Central Subregional2456177

1135RecruitsNEERC 2001 Central Subregional2661164

1136ParliamentNEERC 2001 Central Subregional4379100

1137Bus RoutesNEERC 2001 Central Subregional1453299

1138Integer PercentageNEERC 2001 Central Subregional2185199

1139City BlocksNEERC 2001 Central Subregional557778

1140Swamp IncidentNEERC 2001 Central Subregional1173369

1158Censored!NEERC 2001 Northern Subregional859503

1159FenceNEERC 2001 Northern Subregional592727

1160NetworkNEERC 2001 Northern Subregional1471300

1161StripiesNEERC 2001 Northern Subregional476592

1162Currency ExchangeNEERC 2001 Northern Subregional974445

1163ChapaevNEERC 2001 Northern Subregional2151944

1164FillwordNEERC 2001 Northern Subregional2175200

1165SubnumberNEERC 2001 Northern Subregional490875

1166Funny Card GameNEERC 2001 Northern Subregional1163575

1224SpiralNEERC 2002 Central Subregional650468

1225FlagsNEERC 2002 Central Subregional1145939

1226esreveR redrONEERC 2002 Central Subregional3965112

1227Rally ChampionshipNEERC 2002 Central Subregional1407313

1228ArrayNEERC 2002 Central Subregional4259104

1229Strong BrickworkNEERC 2002 Central Subregional1129390

1230Introspective ProgramNEERC 2002 Central Subregional599729

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional1982134

1232Asteroid LandingNEERC 2002 Central Subregional1852277

1274Fractional ArithmeticNEERC 2003 Central Subregional649684

1275Knights of the Round TableNEERC 2003 Central Subregional1592668

1276TrainNEERC 2003 Central Subregional562788

1277Cops and ThievesNEERC 2003 Central Subregional562788

1278“… Connecting People”NEERC 2003 Central Subregional449982

1279WarehouseNEERC 2003 Central Subregional1068418

1280Topological SortingNEERC 2003 Central Subregional3022149

1281River BasinNEERC 2003 Central Subregional3161383

1282Game TreeNEERC 2003 Central Subregional1309342

1500Pass LicensesNEERC 2006 Eastern Subregional644640

1501Sense of BeautyNEERC 2006 Eastern Subregional1531271

1502Domino DotsNEERC 2006 Eastern Subregional552276

1503PolynomialNEERC 2006 Eastern Subregional2261773

1504Good MannersNEERC 2006 Eastern Subregional1732286

1505Oil TransferNEERC 2006 Eastern Subregional1302988

1506Columns of NumbersNEERC 2006 Eastern Subregional2614159

1507Difficult DecisionNEERC 2006 Eastern Subregional969427

1508Japanese PuzzleNEERC 2006 Eastern Subregional2371694

1509Domino RecognitionNEERC 2006 Eastern Subregional1033702

1510OrderNEERC 2006 Eastern Subregional467889

1582BookmakersNEERC 2007 Eastern Subregional3254116

1583CheeseNEERC 2007 Eastern Subregional2051767

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2971238

1585PenguinsNEERC 2007 Eastern Subregional908242

1586Threeprime NumbersNEERC 2007 Eastern Subregional2448155

1587Flying PigNEERC 2007 Eastern Subregional468795

1588JamaicaNEERC 2007 Eastern Subregional1190317

1589SokobanNEERC 2007 Eastern Subregional821111

1590Bacon’s CipherNEERC 2007 Eastern Subregional1712221

1591Abstract ThinkingNEERC 2007 Eastern Subregional3671008

1592Chinese WatchesNEERC 2007 Eastern Subregional633591

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional397005

1650BillionairesNEERC 2008 Eastern Subregional722469

1651Shortest SubchainNEERC 2008 Eastern Subregional971350

1652Banking CrisisNEERC 2008 Eastern Subregional1252543

1653Death ConveyorNEERC 2008 Eastern Subregional387151

1654Cipher MessageNEERC 2008 Eastern Subregional555962

1655Somali PiratesNEERC 2008 Eastern Subregional1612007

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1739196

1657Cube SnakeNEERC 2008 Eastern Subregional2411368

1658Sum of DigitsNEERC 2008 Eastern Subregional1393245

1659Regular TrianglesNEERC 2008 Eastern Subregional544620

1711Code NamesNEERC 2009 Eastern Subregional2510123

1712Cipher GrilleNEERC 2009 Eastern Subregional396478

1713Key SubstringsNEERC 2009 Eastern Subregional523584

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1002827

1715Another Ball KillerNEERC 2009 Eastern Subregional326926

1716Alternative SolutionNEERC 2009 Eastern Subregional402755

1717Eligibility RulesNEERC 2009 Eastern Subregional1192411

1718RejudgeNEERC 2009 Eastern Subregional1122275

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2201352

1720Summit Online JudgeNEERC 2009 Eastern Subregional339891

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional565541

1800Murphy's LawNEERC 2010 Eastern Subregional1460188

1801The Revolution CupNEERC 2010 Eastern Subregional445121

1802Cube PuzzleNEERC 2010 Eastern Subregional1461773

1803The Czechs' RiflesNEERC 2010 Eastern Subregional421642

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional786347

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional305878

1806Mobile TelegraphsNEERC 2010 Eastern Subregional463585

1807Cartridges for MaximNEERC 2010 Eastern Subregional1961342

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1551676

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional511531

1885Passenger ComfortNEERC 2011 Eastern Subregional1230198

1886Trip 2NEERC 2011 Eastern Subregional1271791

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2151091

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional583414

1889Airport AnnouncementsNEERC 2011 Eastern Subregional913266

1890Money out of Thin AirNEERC 2011 Eastern Subregional529455

1891Language OceanNEERC 2011 Eastern Subregional413580

1892Morning in KoltsovoNEERC 2011 Eastern Subregional326730

1893A380NEERC 2011 Eastern Subregional439856

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1321728

1895Steaks on BoardNEERC 2011 Eastern Subregional992251

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional647833

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional523485

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional242857

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1351490

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional463858

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1151186

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional722635

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1072200

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional259803

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1101800

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional367573

1990PodracingNEERC 2013 Eastern Subregional226791

1991The battle near the swampNEERC 2013 Eastern Subregional413545

1992CVSNEERC 2013 Eastern Subregional536342

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1083171

1994The Emperor's planNEERC 2013 Eastern Subregional207860

1995Illegal spicesNEERC 2013 Eastern Subregional386471

1996Cipher Message 3NEERC 2013 Eastern Subregional182972

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional415439

1998The old PadawanNEERC 2013 Eastern Subregional616298

1999The secret moduleNEERC 2013 Eastern Subregional265185

2012About Grisha N.NEERC 2014 Eastern Subregional918717

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional214714

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional349445

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional655240

2016Magic and ScienceNEERC 2014 Eastern Subregional156395

2017Best of a bad lotNEERC 2014 Eastern Subregional1441038

2018The Debut AlbumNEERC 2014 Eastern Subregional163197

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional718220

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1203132

2021Scarily interesting!NEERC 2014 Eastern Subregional445351

2022Riding a ToadNEERC 2014 Eastern Subregional462855

2023Donald is a postmanNEERC 2014 Eastern Subregional446036

2074Timus problems classifierQualification of Eastern Subregional 2015168693

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015412417

2076VasianaQualification of Eastern Subregional 201596488

2077ReductionsQualification of Eastern Subregional 2015145137