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Problem set. Volume 6


IDTitleSourceAuthorsDifficulty

1567SMS-spamUSU Championship 2007936141

1585PenguinsNEERC 2007 Eastern Subregional918442

1581TeamworkAutumn School Contest 2007908342

1545HieroglyphsUral Championship 2007742554

1563BayanUSU Championship 2007645559

1502Domino DotsNEERC 2006 Eastern Subregional555675

1510OrderNEERC 2006 Eastern Subregional471889

1573AlchemyAutumn School Contest 20073631105

1582BookmakersNEERC 2007 Eastern Subregional3276116

1572Yekaterinozavodsk Great WellAutumn School Contest 20072681142

1576Telephone TariffsAutumn School Contest 20072673143

1506Columns of NumbersNEERC 2006 Eastern Subregional2632159

1586Threeprime NumbersNEERC 2007 Eastern Subregional2466154

1515CashmasterTimus Top Coders: Third Challenge1922215

1590Bacon’s CipherNEERC 2007 Eastern Subregional1726220

1521War Games 2Timus Top Coders: Third Challenge1594259

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1550262

1501Sense of BeautyNEERC 2006 Eastern Subregional1538271

1537EntsUSU Personal Contest 20071442280

1517Freedom of ChoiceTimus Top Coders: Third Challenge1401294

1551Sumo TournamentUral Championship 20071297307

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest1263321

1588JamaicaNEERC 2007 Eastern Subregional1197316

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest1086352

1574Mathematicians and bracketsAutumn School Contest 20071059359

1513Lemon TaleTimus Top Coders: Third Challenge1042394

1507Difficult DecisionNEERC 2006 Eastern Subregional971428

1519Formula 1Timus Top Coders: Third Challenge968424

1562GM-pineappleUSU Championship 2007927410

1571InterpretersUSU Championship 2007879432

1525PathPetrozavodsk Winter 2007. D.Gozman Contest847476

1535The Hobbit or There and Back AgainUSU Personal Contest 2007838480

1577E-mailAutumn School Contest 2007786482

1579Coat TransportationAutumn School Contest 2007769492

1534Football in GondorUSU Personal Contest 2007715561

1550Dean's Pyramid 3Ural Championship 2007665595

1500Pass LicensesNEERC 2006 Eastern Subregional648639

1592Chinese WatchesNEERC 2007 Eastern Subregional637590

1542AutocompletionUral Championship 2007613644

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest601631

1564Counting OnesUSU Championship 2007563670

1512ZiniumTimus Top Coders: Third Challenge505806

1547Password SearchUral Championship 2007472833

1587Flying PigNEERC 2007 Eastern Subregional469797

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest456827

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest453881

1593Square Country. Version 2442744

1578Mammoth HuntAutumn School Contest 2007423885

1580Dean's DebtsAutumn School Contest 2007416900

1575Yekaterinburg Subway 2Autumn School Contest 2007408917

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest383981

1518Jedi Riddle 3Timus Top Coders: Third Challenge3821058

1539Intelligence DataUSU Personal Contest 20073801043

1591Abstract ThinkingNEERC 2007 Eastern Subregional3691008

1533Fat HobbitsUSU Personal Contest 20073641087

1540Battle for the RingUSU Personal Contest 20073611096

1569Networking the “Iset”USU Championship 20073591041

1570Eating HighUSU Championship 20073591041

1546Japanese SortingUral Championship 20073581091

1511Fiscal OperationsTimus Top Coders: Third Challenge3441172

1544Classmates 3Ural Championship 20073241202

1538Towers of GuardUSU Personal Contest 20073181240

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2971329

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional2971244

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest2911356

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest2861302

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2841388

1595Perfect Sequence2811117

1508Japanese PuzzleNEERC 2006 Eastern Subregional2371701

1568Train Car SortingUSU Championship 20072331581

1503PolynomialNEERC 2006 Eastern Subregional2261780

1516NostalgiaTimus Top Coders: Third Challenge2191812

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2191683

1565The Duel for ThreeUSU Championship 20072191677

1514National ParkTimus Top Coders: Third Challenge2161836

1583CheeseNEERC 2007 Eastern Subregional2051777

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest2001943

1532Lost in TranslationUSU Personal Contest 20071961974

1541ChaseUSU Personal Contest 20071832107

1504Good MannersNEERC 2006 Eastern Subregional1742283

1543Dance RevolutionUral Championship 20071732194

1549Another Japanese PuzzleUral Championship 20071692243

1520Empire Strikes BackTimus Top Coders: Third Challenge1572484

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1312734

1505Oil TransferNEERC 2006 Eastern Subregional1303001

1566Triangular PostcardsUSU Championship 20071173024

1509Domino RecognitionNEERC 2006 Eastern Subregional1033718

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest904080

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest883934

1594Aztec Treasure594716

1597Chernobyl’ Eagle on a Roof. Version 2522684

1536Delights of Pipe-weedUSU Personal Contest 2007506777

1599Winding Number442533

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest329179

1598DSA Attack284328

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2311682

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212750

1548Sakura and StatisticsUral Championship 20071913844

1596Knight Mare178770

1589SokobanNEERC 2007 Eastern Subregional821219