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Problem set. Volume 1


IDTitleSourceAuthorsDifficulty

1001Reverse Root2941115

1000A+B Problem9583716

1068Sum3494338

1025Democracy in DangerAutumn School Contest 20002111768

1083Factorials!!!Spring School Contest 20011843468

1005Stone PileUSU Championship 19971689585

1009K-based NumbersUSU Championship 19971534393

1014Product of DigitsUSU Local Contest. 19991473997

1020RopeAutumn School Contest 200014277100

1086CryptographySpring School Contest 200111647108

1079MaximumWinter Mathematical Festival Varna 200111526110

1044Lucky Tickets. Easy!USU Championship 200011739120

1082Gaby IvanushkaSpring School Contest 200110400121

1022Genealogical TreeAutumn School Contest 200010399137

1021Sacrament of the SumAutumn School Contest 20009956143

1073Square CountryUSU Personal Contest 20018699147

1084Goat in the GardenSpring School Contest 20018520147

1017StaircasesUSU Local Contest. 19999313153

1026Questions and AnswersAutumn School Contest 20009056157

1012K-based Numbers. Version 28204174

1013K-based Numbers. Version 31058188

1048Superlong SumsUSU Local Contest. March 20007213192

1023ButtonsAutumn School Contest 20006887207

1002Phone NumbersCentral European Olympiad in Informatics 19996515220

1052Rabbit HuntUSU Local Contest. March 20006109228

1080Map ColoringWinter Mathematical Festival Varna 20015518229

1033LabyrinthUral Championship 19996153231

1011ConductorsUSU Championship 19975988239

1049Brave BalloonistsUSU Local Contest. March 20005786240

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014883259

1028StarsUral Championship 19995444261

1087The Time to Take StonesSpring School Contest 20014575274

1010Discrete FunctionUSTU PhysTech Cup 20005152277

1018Binary Apple TreeUSU Local Contest. 19995093280

1047Simple CalculationsUSU Local Contest. March 20004725294

1036Lucky Tickets4781297

1032Find a MultipleUral Championship 19994151298

1024PermutationsAutumn School Contest 20004646306

1053PinocchioNEERC 2000 Central Subregional4284324

1029MinistryUral Championship 19993619341

1008Image EncodingUSTU PhysTech Cup 20004089349

1090In the Army NowUSU Local Contest. March 20013406349

1078SegmentsWinter Mathematical Festival Varna 20013553355

1060Flip GameNEERC 20003682357

1031Railway TicketsUral Championship 19993833370

1039Anniversary PartyUSU Championship 20003740376

1003ParityCentral European Olympiad in Informatics 19993756381

1007Code WordsUSU Championship 19973717385

1077Travelling Tours1147399

1055CombinationsNEERC 2000 Central Subregional3448402

1015Test the Difference!USU Local Contest. 19993297432

1094E-screenUSU Local Contest. March 20012710438

1019Line PaintingUSU Local Contest. 19993210444

1038Spell CheckerUSU Championship 20003044462

1089Verification with a VocabularySpring School Contest 20012694464

1067Disk TreeNEERC 20002700485

1072RoutingUSU Personal Contest 20012614488

1051Simple Game on a GridUSU Local Contest. March 20002754504

1045Funny GameUSU Local Contest. March 20002732508

1069Prufer CodeUSU Personal Contest 20012477514

1091Tmutarakan ExamsUSU Local Contest. March 20012305515

1098Questions2142530

1056Centers of the NetNEERC 2000 Central Subregional2599533

1066GarlandNEERC 20002378551

1095Nikifor 3USU Local Contest. March 20012129557

1004Sightseeing TripCentral European Olympiad in Informatics 19992526566

1027D++ AgainAutumn School Contest 20002398592

1071Nikifor 2USU Personal Contest 20012128598

1085MeetingSpring School Contest 20012075602

1064Binary SearchNEERC 20002104623

1061Buffer ManagerNEERC 20002071633

1070Local TimeUSU Personal Contest 20012004635

1059ExpressionNEERC 2000 Central Subregional2161640

1054Tower of HanoiNEERC 2000 Central Subregional2107656

1076Trash1861680

1096Get the Right Route Plate!USU Local Contest. March 20011734684

1057Amount of DegreesNEERC 2000 Central Subregional1967703

1088Ilya MurometzSpring School Contest 20011762708

1034Queens in Peaceful PositionsUral Championship 19991845767

1016Cube on the WalkUSU Local Contest. 19991813783

1042Central HeatingUSU Championship 20001742804

1030TitanicUral Championship 19991669847

1006Square FramesUSU Championship 19971526933

1040Airline CompanyUSU Championship 20001433977

1099Work Scheduling9381138

1037Memory ManagementUSU Championship 200012091156

1035Cross-stitchUral Championship 199910601326

1097Square Country 2USU Local Contest. March 20018801340

1050Preparing an ArticleUSU Local Contest. March 200010061370

1065FrontierNEERC 20009491372

1043Cover an ArcUSU Championship 20008781587

1062TriathlonNEERC 20007201802

1046Geometrical DreamsUSU Local Contest. March 20007511830

1093DartsUSU Local Contest. March 20016061936

1075Thread in a SpaceUSU Personal Contest 20016182037

1074Very Short ProblemUSU Personal Contest 20016082070

1063Domino PuzzleNEERC 20006032145

1092TransversalUSU Local Contest. March 20015262224

1041NikiforUSU Championship 20006082281

1058ChocolateNEERC 2000 Central Subregional4812824