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Problem set. NEERC Regionals

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

IDTitleSourceAuthorsDifficulty

1225FlagsNEERC 2002 Central Subregional1202238

2012About Grisha N.NEERC 2014 Eastern Subregional1039217

1585PenguinsNEERC 2007 Eastern Subregional959641

1910Titan Ruins: Hidden EntranceNEERC 2012 Eastern Subregional702533

1224SpiralNEERC 2002 Central Subregional671867

1654Cipher MessageNEERC 2008 Eastern Subregional595459

1139City BlocksNEERC 2001 Central Subregional575477

1502Domino DotsNEERC 2006 Eastern Subregional571975

2023Donald is a postmanNEERC 2014 Eastern Subregional494035

1161StripiesNEERC 2001 Northern Subregional489291

1510OrderNEERC 2006 Eastern Subregional485688

1893A380NEERC 2011 Eastern Subregional473155

1991The battle near the swampNEERC 2013 Eastern Subregional457544

1136ParliamentNEERC 2001 Central Subregional450599

1228ArrayNEERC 2002 Central Subregional4343104

1053PinocchioNEERC 2000 Central Subregional4215318

1712Cipher GrilleNEERC 2009 Eastern Subregional410778

1226esreveR redrONEERC 2002 Central Subregional4082111

1055CombinationsNEERC 2000 Central Subregional3369397

1582BookmakersNEERC 2007 Eastern Subregional3358116

1280Topological SortingNEERC 2003 Central Subregional3144146

1506Columns of NumbersNEERC 2006 Eastern Subregional2746155

1135RecruitsNEERC 2001 Central Subregional2718164

1586Threeprime NumbersNEERC 2007 Eastern Subregional2588150

1711Code NamesNEERC 2009 Eastern Subregional2588124

1056Computer NetNEERC 2000 Central Subregional2517531

1134CardsNEERC 2001 Central Subregional2468180

1133Fibonacci SequenceNEERC 2001 Central Subregional2445182

1138Integer PercentageNEERC 2001 Central Subregional2244198

1164FillwordNEERC 2001 Northern Subregional2230200

1059ExpressionNEERC 2000 Central Subregional2116631

1054Hanoi TowerNEERC 2000 Central Subregional2041654

1057Amount of DegreesNEERC 2000 Central Subregional1890706

2018The Debut AlbumNEERC 2014 Eastern Subregional180396

1590Bacon’s CipherNEERC 2007 Eastern Subregional1799216

1656Far Away Kingdom's ArmyNEERC 2008 Eastern Subregional1792197

1160NetworkNEERC 2001 Northern Subregional1613280

1501Sense of BeautyNEERC 2006 Eastern Subregional1595267

1800Murphy's LawNEERC 2010 Eastern Subregional1560184

1137Bus RoutesNEERC 2001 Central Subregional1508294

1658Sum of DigitsNEERC 2008 Eastern Subregional1478238

1227Rally ChampionshipNEERC 2002 Central Subregional1451310

1282Game TreeNEERC 2003 Central Subregional1356337

2020Traffic Jam in Flower TownNEERC 2014 Eastern Subregional1325131

1885Passenger ComfortNEERC 2011 Eastern Subregional1299197

1588JamaicaNEERC 2007 Eastern Subregional1235314

1915Titan Ruins: Reconstruction of BygonesNEERC 2012 Eastern Subregional1210188

1140Swamp IncidentNEERC 2001 Central Subregional1203368

1229Strong BrickworkNEERC 2002 Central Subregional1160388

1718RejudgeNEERC 2009 Eastern Subregional1149279

1993This cheeseburger you don't needNEERC 2013 Eastern Subregional1146174

1917Titan Ruins: Deadly AccuracyNEERC 2012 Eastern Subregional1128202

1279WarehouseNEERC 2003 Central Subregional1089419

1162Currency ExchangeNEERC 2001 Northern Subregional1065416

1651Shortest SubchainNEERC 2008 Eastern Subregional1011347

1507Difficult DecisionNEERC 2006 Eastern Subregional991428

1889Airport AnnouncementsNEERC 2011 Eastern Subregional948270

1158Censored!NEERC 2001 Northern Subregional878504

1650BillionairesNEERC 2008 Eastern Subregional821427

1804The Machinegunners in a PlayoffNEERC 2010 Eastern Subregional800357

2019Pair: normal and paranormalNEERC 2014 Eastern Subregional750230

2015Zhenya moves from the dormitoryNEERC 2014 Eastern Subregional711242

1500Pass LicensesNEERC 2006 Eastern Subregional667633

1274Fractional ArithmeticNEERC 2003 Central Subregional658689

1592Chinese WatchesNEERC 2007 Eastern Subregional656587

1998The old PadawanNEERC 2013 Eastern Subregional655302

1888Pilot Work ExperienceNEERC 2011 Eastern Subregional610417

1159FenceNEERC 2001 Northern Subregional606726

1230Introspective ProgramNEERC 2002 Central Subregional605738

1992CVSNEERC 2013 Eastern Subregional584338

1276TrainNEERC 2003 Central Subregional577784

1721Two Sides of the Same CoinNEERC 2009 Eastern Subregional577550

1277Cops and ThievesNEERC 2003 Central Subregional576786

1890Money out of Thin AirNEERC 2011 Eastern Subregional571445

1659Regular TrianglesNEERC 2008 Eastern Subregional566616

1713Key SubstringsNEERC 2009 Eastern Subregional545582

1809Chapaev and PotatoesNEERC 2010 Eastern Subregional527538

1806Mobile TelegraphsNEERC 2010 Eastern Subregional521544

1165SubnumberNEERC 2001 Northern Subregional495886

1587Flying PigNEERC 2007 Eastern Subregional480798

2021Scarily interesting!NEERC 2014 Eastern Subregional477358

1058ChocolateNEERC 2000 Central Subregional4582861

1278“… Connecting People”NEERC 2003 Central Subregional452997

1997Those are not the droids you're looking forNEERC 2013 Eastern Subregional435451

1803The Czechs' RiflesNEERC 2010 Eastern Subregional433653

1891Language OceanNEERC 2011 Eastern Subregional424596

1716Alternative SolutionNEERC 2009 Eastern Subregional413764

1995Illegal spicesNEERC 2013 Eastern Subregional402487

1591Abstract ThinkingNEERC 2007 Eastern Subregional3761012

1920Titan Ruins: the Infinite Power of MagicNEERC 2012 Eastern Subregional375597

2014Zhenya moves from parentsNEERC 2014 Eastern Subregional370459

1720Summit Online JudgeNEERC 2009 Eastern Subregional343915

1892Morning in KoltsovoNEERC 2011 Eastern Subregional331758

1715Another Ball KillerNEERC 2009 Eastern Subregional327958

1281River BasinNEERC 2003 Central Subregional3191400

1805Chapaev and a Cipher GrilleNEERC 2010 Eastern Subregional316887

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3001261

1918Titan Ruins: Artful ManipulationsNEERC 2012 Eastern Subregional276803

1912Titan Ruins: Passing through WallsNEERC 2012 Eastern Subregional250883

1657Cube SnakeNEERC 2008 Eastern Subregional2421407

1508Japanese PuzzleNEERC 2006 Eastern Subregional2411707

1990PodracingNEERC 2013 Eastern Subregional232830

1503PolynomialNEERC 2006 Eastern Subregional2281800

1719Kill the Shaitan-BossNEERC 2009 Eastern Subregional2241380

1887Frequent Flyer CardNEERC 2011 Eastern Subregional2221114

1994The Emperor's planNEERC 2013 Eastern Subregional221869

2013Neither shaken nor stirredNEERC 2014 Eastern Subregional221755

1163ChapaevNEERC 2001 Northern Subregional2171970

1583CheeseNEERC 2007 Eastern Subregional2071801

1807Cartridges for MaximNEERC 2010 Eastern Subregional2051345

1231Turing: One, Two, Three, …NEERC 2002 Central Subregional2012150

1996Cipher Message 3NEERC 2013 Eastern Subregional1881014

1232Asteroid LandingNEERC 2002 Central Subregional1862314

2074Timus problems classifierQualification of Eastern Subregional 2015178737

1504Good MannersNEERC 2006 Eastern Subregional1742328

1655Somali PiratesNEERC 2008 Eastern Subregional1652027

1275Knights of the Round TableNEERC 2003 Central Subregional1612693

1808Chapaev at the Planet OceanNEERC 2010 Eastern Subregional1601701

1802Cube PuzzleNEERC 2010 Eastern Subregional1481830

2017Best of a bad lotNEERC 2014 Eastern Subregional1481104

1894Non-Flying WeatherNEERC 2011 Eastern Subregional1381747

1913Titan Ruins: Alignment of ForcesNEERC 2012 Eastern Subregional1381552

1505Oil TransferNEERC 2006 Eastern Subregional1332996

1652Banking CrisisNEERC 2008 Eastern Subregional1312515

1886Trip 2NEERC 2011 Eastern Subregional1311833

1717Eligibility RulesNEERC 2009 Eastern Subregional1252393

1166Funny Card GameNEERC 2001 Northern Subregional1193566

1919Titan Ruins: Transformation of CylindersNEERC 2012 Eastern Subregional1161823

1509Domino RecognitionNEERC 2006 Eastern Subregional1043758

1895Steaks on BoardNEERC 2011 Eastern Subregional1042268

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1032858

1916Titan Ruins: Waiting for StabilityNEERC 2012 Eastern Subregional722801

1911Titan Ruins: Overtaking FireNEERC 2012 Eastern Subregional533646

2022Riding a ToadNEERC 2014 Eastern Subregional483009

1914Titan Ruins: Serial ControlNEERC 2012 Eastern Subregional464102

1801The Revolution CupNEERC 2010 Eastern Subregional455257

2075Take care of your eyebrows!Qualification of Eastern Subregional 2015442565

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional407094

1653Death ConveyorNEERC 2008 Eastern Subregional407093

1999The secret moduleNEERC 2013 Eastern Subregional265578

2016Magic and ScienceNEERC 2014 Eastern Subregional166712

2077ReductionsQualification of Eastern Subregional 2015155541

2076VasianaQualification of Eastern Subregional 2015116597

1589SokobanNEERC 2007 Eastern Subregional821710
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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