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Problem set. Volume 1


IDTitleSourceAuthorsDifficulty

1001Reverse Root2734615

1000A+B Problem9032816

1068Sum3280938

1025Democracy in DangerAutumn School Contest 20002009868

1083Factorials!!!Spring School Contest 20011736369

1005Stone PileUSU Championship 19971575387

1009K-based NumbersUSU Championship 19971447395

1014Product of DigitsUSU Local Contest. 199913733100

1020RopeAutumn School Contest 200013345102

1079MaximumWinter Mathematical Festival Varna 200111020110

1086CryptographySpring School Contest 200110963110

1082Gaby IvanushkaSpring School Contest 200110134119

1044Lucky Tickets. Easy!USU Championship 200011281120

1022Genealogical TreeAutumn School Contest 20009952137

1021Sacrament of the SumAutumn School Contest 20009636142

1026Questions and AnswersAutumn School Contest 20009319147

1084Goat in the GardenSpring School Contest 20018200147

1073Square CountryUSU Personal Contest 20018054152

1017StaircasesUSU Local Contest. 19998784156

1012K-based Numbers. Version 27940172

1048Superlong SumsUSU Local Contest. March 20007029189

1013K-based Numbers. Version 3864197

1023ButtonsAutumn School Contest 20006675205

1002Phone NumbersCentral European Olympiad in Informatics 19996338216

1052Rabbit HuntUSU Local Contest. March 20005891226

1033LabyrinthUral Championship 19995935229

1011ConductorsUSU Championship 19975843234

1049Brave BalloonistsUSU Local Contest. March 20005552240

1080Map ColoringWinter Mathematical Festival Varna 20014892248

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014711257

1028StarsUral Championship 19995115266

1010Discrete FunctionUSTU PhysTech Cup 20005038272

1087The Time to Take StonesSpring School Contest 20014323278

1018Binary Apple TreeUSU Local Contest. 19994721289

1032Find a MultipleUral Championship 19993979298

1036Lucky Tickets4567298

1047Simple CalculationsUSU Local Contest. March 20004472298

1024PermutationsAutumn School Contest 20004522302

1053PinocchioNEERC 2000 Central Subregional4201316

1029MinistryUral Championship 19993507338

1008Image EncodingUSTU PhysTech Cup 20004003342

1060Flip GameNEERC 20003524357

1090In the Army NowUSU Local Contest. March 20013197357

1031Railway TicketsUral Championship 19993706367

1078SegmentsWinter Mathematical Festival Varna 20013247373

1039Anniversary PartyUSU Championship 20003571377

1007Code WordsUSU Championship 19973600381

1003ParityCentral European Olympiad in Informatics 19993585383

1055CombinationsNEERC 2000 Central Subregional3356396

1077Travelling Tours1083405

1015Test the Difference!USU Local Contest. 19993222424

1094E-screenUSU Local Contest. March 20012650430

1019Line PaintingUSU Local Contest. 19993072444

1038Spell CheckerUSU Championship 20002985451

1089Verification with a VocabularySpring School Contest 20012645453

1072RoutingUSU Personal Contest 20012545480

1051Simple Game on a GridUSU Local Contest. March 20002715490

1091Tmutarakan ExamsUSU Local Contest. March 20012275500

1045Funny GameUSU Local Contest. March 20002607510

1069Prufer CodeUSU Personal Contest 20012346521

1098Questions2083522

1056Computer NetNEERC 2000 Central Subregional2496532

1066GarlandNEERC 20002316542

1067Disk TreeNEERC 20002287549

1095Nikifor 3USU Local Contest. March 20012067551

1004Sightseeing TripCentral European Olympiad in Informatics 19992429564

1027D++ AgainAutumn School Contest 20002343581

1085MeetingSpring School Contest 20012026591

1071Nikifor 2USU Personal Contest 20012034600

1064Binary SearchNEERC 20002060610

1061Buffer ManagerNEERC 20002052612

1070Local TimeUSU Personal Contest 20011962622

1059ExpressionNEERC 2000 Central Subregional2108629

1054Hanoi TowerNEERC 2000 Central Subregional2019657

1076Trash1814669

1096Get the Right Route Plate!USU Local Contest. March 20011652688

1057Amount of DegreesNEERC 2000 Central Subregional1874707

1088Ilya MurometzSpring School Contest 20011691707

1037Memory ManagementUSU Championship 20001774757

1034Queens in Peaceful PositionsUral Championship 19991775764

1016Cube on the WalkUSU Local Contest. 19991757775

1042Central HeatingUSU Championship 20001665806

1030TitanicUral Championship 19991623835

1006Square FramesUSU Championship 19971494913

1040Airline CompanyUSU Championship 20001363984

1099Work Scheduling8781165

1035Cross-stitchUral Championship 199910241316

1050Preparing an ArticleUSU Local Contest. March 20009781351

1065FrontierNEERC 20009021384

1097Square Country 2USU Local Contest. March 20018071399

1043Cover an ArcUSU Championship 20008531565

1062TriathlonNEERC 20006911799

1046Geometrical DreamsUSU Local Contest. March 20007241818

1093DartsUSU Local Contest. March 20015881912

1074Very Short ProblemUSU Personal Contest 20015912041

1041NikiforUSU Championship 20006342098

1075Thread in a SpaceUSU Personal Contest 20015712111

1063Domino PuzzleNEERC 20005832126

1092TransversalUSU Local Contest. March 20015012237

1058ChocolateNEERC 2000 Central Subregional4522877