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Problem set. Volume 6


1567SMS-spamUSU Championship 2007986940

1585PenguinsNEERC 2007 Eastern Subregional973840

1581TeamworkAutumn School Contest 2007957441

1545HieroglyphsUral Championship 2007794952

1563BayanUSU Championship 2007687258

1502Domino DotsNEERC 2006 Eastern Subregional579674

1510OrderNEERC 2006 Eastern Subregional491688

1573AlchemyAutumn School Contest 20073827103

1582BookmakersNEERC 2007 Eastern Subregional3402116

1572Yekaterinozavodsk Great WellAutumn School Contest 20072790141

1506Columns of NumbersNEERC 2006 Eastern Subregional2770155

1576Telephone TariffsAutumn School Contest 20072767143

1586Threeprime NumbersNEERC 2007 Eastern Subregional2625150

1515CashmasterTimus Top Coders: Third Challenge2006212

1590Bacon’s CipherNEERC 2007 Eastern Subregional1834214

1521War Games 2Timus Top Coders: Third Challenge1824233

1501Sense of BeautyNEERC 2006 Eastern Subregional1619265

1528SequencePetrozavodsk Winter 2007. D.Gozman Contest1612259

1517Freedom of ChoiceTimus Top Coders: Third Challenge1501283

1537EntsUSU Personal Contest 20071485280

1551Sumo TournamentUral Championship 20071378298

1523K-inversionsPetrozavodsk Winter 2007. D.Gozman Contest1348310

1553Caves and TunnelsPetrozavodsk Summer 2007. NSU Contest1254315

1588JamaicaNEERC 2007 Eastern Subregional1251313

1574Mathematicians and bracketsAutumn School Contest 20071117352

1513Lemon TaleTimus Top Coders: Third Challenge1116379

1507Difficult DecisionNEERC 2006 Eastern Subregional999428

1519Formula 1Timus Top Coders: Third Challenge981431

1562GM-pineappleUSU Championship 2007964407

1571InterpretersUSU Championship 2007917428

1525PathPetrozavodsk Winter 2007. D.Gozman Contest888468

1535The Hobbit or There and Back AgainUSU Personal Contest 2007871476

1577E-mailAutumn School Contest 2007826474

1579Coat TransportationAutumn School Contest 2007811483

1534Football in GondorUSU Personal Contest 2007742557

1500Pass LicensesNEERC 2006 Eastern Subregional676630

1550Dean's Pyramid 3Ural Championship 2007675604

1592Chinese WatchesNEERC 2007 Eastern Subregional662587

1542AutocompletionUral Championship 2007638639

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest619633

1564Counting OnesUSU Championship 2007586666

1512ZiniumTimus Top Coders: Third Challenge513816

1547Password SearchUral Championship 2007495820

1587Flying PigNEERC 2007 Eastern Subregional489791

1558Periodical NumbersPetrozavodsk Summer 2007. NSU Contest474823

1593Square Country. Version 2472726

1530Ones and ZeroesPetrozavodsk Winter 2007. D.Gozman Contest466883

1580Dean's DebtsAutumn School Contest 2007440880

1578Mammoth HuntAutumn School Contest 2007432896

1546Japanese SortingUral Championship 2007429943

1575Yekaterinburg Subway 2Autumn School Contest 2007425911

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest400971

1518Jedi Riddle 3Timus Top Coders: Third Challenge3891070

1533Fat HobbitsUSU Personal Contest 20073811072

1539Intelligence DataUSU Personal Contest 20073811071

1569Networking the “Iset”USU Championship 20073811015

1591Abstract ThinkingNEERC 2007 Eastern Subregional3791015

1570Eating HighUSU Championship 20073771025

1540Battle for the RingUSU Personal Contest 20073691105

1511Fiscal OperationsTimus Top Coders: Third Challenge3481193

1544Classmates 3Ural Championship 20073341203

1538Towers of GuardUSU Personal Contest 20073281240

1552BrainfuckPetrozavodsk Summer 2007. NSU Contest3041268

1584Pharaohs’ SecretsNEERC 2007 Eastern Subregional3011269

1527Bad RoadsPetrozavodsk Winter 2007. D.Gozman Contest3001356

1531Zones on a PlanePetrozavodsk Winter 2007. D.Gozman Contest2991360

1526Martian PlatesPetrozavodsk Winter 2007. D.Gozman Contest2971369

1595Perfect Sequence2901130

1508Japanese PuzzleNEERC 2006 Eastern Subregional2411722

1568Train Car SortingUSU Championship 20072381600

1503PolynomialNEERC 2006 Eastern Subregional2281816

1565The Duel for ThreeUSU Championship 20072231703

1516NostalgiaTimus Top Coders: Third Challenge2221841

1514National ParkTimus Top Coders: Third Challenge2201857

1557Network AttackPetrozavodsk Summer 2007. NSU Contest2201732

1583CheeseNEERC 2007 Eastern Subregional2071819

1522FactoryPetrozavodsk Winter 2007. D.Gozman Contest2051955

1532Lost in TranslationUSU Personal Contest 20072001995

1541ChaseUSU Personal Contest 20071902095

1543Dance RevolutionUral Championship 20071762225

1504Good MannersNEERC 2006 Eastern Subregional1742349

1549Another Japanese PuzzleUral Championship 20071722274

1520Empire Strikes BackTimus Top Coders: Third Challenge1582542

1505Oil TransferNEERC 2006 Eastern Subregional1333022

1561Winnie the PoohPetrozavodsk Summer 2007. NSU Contest1332785

1566Triangular PostcardsUSU Championship 20071242962

1509Domino RecognitionNEERC 2006 Eastern Subregional1043791

1529Game of SquaresPetrozavodsk Winter 2007. D.Gozman Contest924121

1559TruCoders LinguisticsPetrozavodsk Summer 2007. NSU Contest894023

1597Chernobyl’ Eagle on a Roof. Version 2612587

1594Aztec Treasure604849

1536Delights of Pipe-weedUSU Personal Contest 2007516868

1599Winding Number482667

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest349051

1598DSA Attack304545

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2411713

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2312736

1596Knight Mare189022

1548Sakura and StatisticsUral Championship 20071317995

1589SokobanNEERC 2007 Eastern Subregional821931