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Problem set. Volume 1


IDTitleSourceAuthorsDifficulty

1000A+B Problem10366016

1068Sum3810837

1001Reverse Root3244914

1025Democracy in DangerAutumn School Contest 20002269867

1083Factorials!!!Spring School Contest 20011976967

1005Stone PileUSU Championship 19971931679

1009K-based NumbersUSU Championship 19971622493

1014Product of DigitsUSU Local Contest. 19991618893

1020RopeAutumn School Contest 20001526899

1086CryptographySpring School Contest 200112594105

1044Lucky Tickets. Easy!USU Championship 200012398120

1079MaximumWinter Mathematical Festival Varna 200112190110

1022Genealogical TreeAutumn School Contest 200010802140

1082Gaby IvanushkaSpring School Contest 200110781123

1021Sacrament of the SumAutumn School Contest 200010381145

1017StaircasesUSU Local Contest. 19999726155

1026Questions and AnswersAutumn School Contest 20009713155

1073Square CountryUSU Personal Contest 20019545142

1084Goat in the GardenSpring School Contest 20018913149

1012K-based Numbers. Version 28570176

1048Superlong SumsUSU Local Contest. March 20007457197

1023ButtonsAutumn School Contest 20007115212

1002Phone NumbersCentral European Olympiad in Informatics 19996790223

1080Map ColoringWinter Mathematical Festival Varna 20016709199

1033LabyrinthUral Championship 19996460233

1052Rabbit HuntUSU Local Contest. March 20006320233

1011ConductorsUSU Championship 19976213244

1049Brave BalloonistsUSU Local Contest. March 20006005245

1028StarsUral Championship 19995717263

1018Binary Apple TreeUSU Local Contest. 19995475276

1010Discrete FunctionUSTU PhysTech Cup 20005297286

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20015068264

1036Lucky Tickets5001301

1047Simple CalculationsUSU Local Contest. March 20004995295

1087The Time to Take StonesSpring School Contest 20014896271

1024PermutationsAutumn School Contest 20004806314

1053PinocchioNEERC 2000 Central Subregional4392334

1032Find a MultipleUral Championship 19994381299

1008Image EncodingUSTU PhysTech Cup 20004204360

1003ParityCentral European Olympiad in Informatics 19993950384

1031Railway TicketsUral Championship 19993947381

1039Anniversary PartyUSU Championship 20003911381

1078SegmentsWinter Mathematical Festival Varna 20013838348

1007Code WordsUSU Championship 19973827396

1060Flip GameNEERC 20003788367

1029MinistryUral Championship 19993757348

1067Disk TreeNEERC 20003581388

1055CombinationsNEERC 2000 Central Subregional3553413

1090In the Army NowUSU Local Contest. March 20013498360

1015Test the Difference!USU Local Contest. 19993383446

1019Line PaintingUSU Local Contest. 19993302457

1038Spell CheckerUSU Championship 20003121477

1045Funny GameUSU Local Contest. March 20002849516

1051Simple Game on a GridUSU Local Contest. March 20002822521

1094E-screenUSU Local Contest. March 20012782452

1072RoutingUSU Personal Contest 20012742492

1056Centers of the NetNEERC 2000 Central Subregional2693544

1004Sightseeing TripCentral European Olympiad in Informatics 19992612580

1069Prufer CodeUSU Personal Contest 20012609517

1066GarlandNEERC 20002442568

1027D++ AgainAutumn School Contest 20002421622

1091Tmutarakan ExamsUSU Local Contest. March 20012399524

1054Tower of HanoiNEERC 2000 Central Subregional2282642

1059ExpressionNEERC 2000 Central Subregional2211663

1095Nikifor 3USU Local Contest. March 20012211568

1098Questions2206544

1071Nikifor 2USU Personal Contest 20012198613

1064Binary SearchNEERC 20002159642

1085MeetingSpring School Contest 20012145616

1061Buffer ManagerNEERC 20002124653

1070Local TimeUSU Personal Contest 20012057655

1057Amount of DegreesNEERC 2000 Central Subregional2052714

1076Trash1911701

1034Queens in Peaceful PositionsUral Championship 19991882796

1016Cube on the WalkUSU Local Contest. 19991868805

1042Central HeatingUSU Championship 20001845805

1088Ilya MurometzSpring School Contest 20011800734

1096Get the Right Route Plate!USU Local Contest. March 20011792700

1030TitanicUral Championship 19991708877

1089Verification with the DictionarySpring School Contest 20011588831

1006Square FramesUSU Championship 19971562965

1040Airline CompanyUSU Championship 20001494992

1037Memory ManagementUSU Championship 200012671169

1013K-based Numbers. Version 31241192

1077Travelling Tours1221396

1035Cross-stitchUral Championship 199911191331

1050Preparing an ArticleUSU Local Contest. March 200010281420

1065FrontierNEERC 20009941388

1099Work Scheduling9931138

1097Square Country 2USU Local Contest. March 20019231352

1043Cover an ArcUSU Championship 20009131617

1046Geometrical DreamsUSU Local Contest. March 20007811864

1062TriathlonNEERC 20007641799

1075Thread in a SpaceUSU Personal Contest 20016592024

1093DartsUSU Local Contest. March 20016331962

1074Very Short ProblemUSU Personal Contest 20016322109

1063Domino PuzzleNEERC 20006262189

1092TransversalUSU Local Contest. March 20015412290

1058ChocolateNEERC 2000 Central Subregional5182780

1041NikiforUSU Championship 20002954894