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Problem set. Volume 1


IDTitleSourceAuthorsDifficulty

1000A+B Problem8872316

1068Sum3215239

1001Reverse Root2674415

1025Democracy in DangerAutumn School Contest 20001979968

1083Factorials!!!Spring School Contest 20011701970

1005Stone PileUSU Championship 19971539088

1009K-based NumbersUSU Championship 19971429095

1014Product of DigitsUSU Local Contest. 199913463101

1020RopeAutumn School Contest 200013150103

1044Lucky Tickets. Easy!USU Championship 200011202119

1079MaximumWinter Mathematical Festival Varna 200110858111

1086CryptographySpring School Contest 200110787110

1082Gaby IvanushkaSpring School Contest 200110057118

1022Genealogical TreeAutumn School Contest 20009864137

1021Sacrament of the SumAutumn School Contest 20009551142

1026Questions and AnswersAutumn School Contest 20009187147

1017StaircasesUSU Local Contest. 19998687156

1084Goat in the GardenSpring School Contest 20018131146

1073Square CountryUSU Personal Contest 20017943153

1012K-based Numbers. Version 27852172

1048Superlong SumsUSU Local Contest. March 20006984188

1023ButtonsAutumn School Contest 20006612204

1002Phone NumbersCentral European Olympiad in Informatics 19996274216

1033LabyrinthUral Championship 19995884229

1052Rabbit HuntUSU Local Contest. March 20005850225

1011ConductorsUSU Championship 19975808233

1049Brave BalloonistsUSU Local Contest. March 20005509239

1028StarsUral Championship 19995055266

1010Discrete FunctionUSTU PhysTech Cup 20005014270

1080Map ColoringWinter Mathematical Festival Varna 20014832248

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20014668257

1018Binary Apple TreeUSU Local Contest. 19994660290

1036Lucky Tickets4506299

1024PermutationsAutumn School Contest 20004483301

1047Simple CalculationsUSU Local Contest. March 20004444297

1087The Time to Take StonesSpring School Contest 20014286277

1053PinocchioNEERC 2000 Central Subregional4171315

1008Image EncodingUSTU PhysTech Cup 20003969341

1032Find a MultipleUral Championship 19993925299

1031Railway TicketsUral Championship 19993675366

1007Code WordsUSU Championship 19973558381

1003ParityCentral European Olympiad in Informatics 19993527385

1039Anniversary PartyUSU Championship 20003518379

1060Flip GameNEERC 20003498356

1029MinistryUral Championship 19993475337

1055CombinationsNEERC 2000 Central Subregional3319396

1078SegmentsWinter Mathematical Festival Varna 20013205374

1015Test the Difference!USU Local Contest. 19993189424

1090In the Army NowUSU Local Contest. March 20013159357

1019Line PaintingUSU Local Contest. 19993040444

1038Spell CheckerUSU Championship 20002958450

1051Simple Game on a GridUSU Local Contest. March 20002694488

1094E-screenUSU Local Contest. March 20012627429

1089Verification with a VocabularySpring School Contest 20012622452

1045Funny GameUSU Local Contest. March 20002564513

1072RoutingUSU Personal Contest 20012516481

1056Computer NetNEERC 2000 Central Subregional2467532

1004Sightseeing TripCentral European Olympiad in Informatics 19992400565

1027D++ AgainAutumn School Contest 20002317581

1069Prufer CodeUSU Personal Contest 20012308524

1066GarlandNEERC 20002297541

1067Disk TreeNEERC 20002259550

1091Tmutarakan ExamsUSU Local Contest. March 20012255500

1059ExpressionNEERC 2000 Central Subregional2092627

1098Questions2068520

1095Nikifor 3USU Local Contest. March 20012047550

1064Binary SearchNEERC 20002044608

1061Buffer ManagerNEERC 20002033611

1071Nikifor 2USU Personal Contest 20012012600

1085MeetingSpring School Contest 20012005591

1054Hanoi TowerNEERC 2000 Central Subregional1997657

1070Local TimeUSU Personal Contest 20011936624

1057Amount of DegreesNEERC 2000 Central Subregional1851708

1076Trash1800667

1034Queens in Peaceful PositionsUral Championship 19991758763

1037Memory ManagementUSU Championship 20001756757

1016Cube on the WalkUSU Local Contest. 19991733777

1088Ilya MurometzSpring School Contest 20011671708

1042Central HeatingUSU Championship 20001648806

1096Get the Right Route Plate!USU Local Contest. March 20011635688

1030TitanicUral Championship 19991595841

1006Square FramesUSU Championship 19971477914

1040Airline CompanyUSU Championship 20001344987

1077Travelling Tours1056411

1035Cross-stitchUral Championship 199910181309

1050Preparing an ArticleUSU Local Contest. March 20009561367

1065FrontierNEERC 20008911386

1099Work Scheduling8561182

1043Cover an ArcUSU Championship 20008331586

1097Square Country 2USU Local Contest. March 20018011395

1013K-based Numbers. Version 3796206

1046Geometrical DreamsUSU Local Contest. March 20007051847

1062TriathlonNEERC 20006821803

1041NikiforUSU Championship 20006292092

1074Very Short ProblemUSU Personal Contest 20015762071

1093DartsUSU Local Contest. March 20015741938

1063Domino PuzzleNEERC 20005732140

1075Thread in a SpaceUSU Personal Contest 20015492171

1092TransversalUSU Local Contest. March 20014862281

1058ChocolateNEERC 2000 Central Subregional4432903