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Problem set. Volume 1


IDTitleSourceAuthorsDifficulty

1001Reverse Root3341114

1000A+B Problem10598216

1068Sum3899737

1025Democracy in DangerAutumn School Contest 20002317567

1083Factorials!!!Spring School Contest 20012011268

1005Stone PileUSU Championship 19971992178

1009K-based NumbersUSU Championship 19971652594

1014Product of DigitsUSU Local Contest. 19991653794

1020RopeAutumn School Contest 20001558899

1086CryptographySpring School Contest 200112833106

1079MaximumWinter Mathematical Festival Varna 200112383111

1044Lucky Tickets. Easy!USU Championship 200012579122

1082Gaby IvanushkaSpring School Contest 200110873125

1073Square CountryUSU Personal Contest 20019869140

1022Genealogical TreeAutumn School Contest 200010961141

1021Sacrament of the SumAutumn School Contest 200010517147

1084Goat in the GardenSpring School Contest 20019072150

1017StaircasesUSU Local Contest. 19999894157

1026Questions and AnswersAutumn School Contest 20009866157

1012K-based Numbers. Version 28671179

1080Map ColoringWinter Mathematical Festival Varna 20017229190

1013K-based Numbers. Version 31311195

1048Superlong SumsUSU Local Contest. March 20007542200

1023ButtonsAutumn School Contest 20007186215

1002Phone NumbersCentral European Olympiad in Informatics 19996909225

1033LabyrinthUral Championship 19996555235

1052Rabbit HuntUSU Local Contest. March 20006381237

1011ConductorsUSU Championship 19976294247

1049Brave BalloonistsUSU Local Contest. March 20006094248

1028StarsUral Championship 19995860263

1081Binary Lexicographic SequenceWinter Mathematical Festival Varna 20015110268

1087The Time to Take StonesSpring School Contest 20014943275

1018Binary Apple TreeUSU Local Contest. 19995550279

1010Discrete FunctionUSTU PhysTech Cup 20005335291

1032Find a MultipleUral Championship 19994462301

1047Simple CalculationsUSU Local Contest. March 20005017301

1036Lucky Tickets5088303

1024PermutationsAutumn School Contest 20004852319

1053PinocchioNEERC 2000 Central Subregional4426340

1029MinistryUral Championship 19993798353

1078SegmentsWinter Mathematical Festival Varna 20013882353

1067Disk TreeNEERC 20003935362

1008Image EncodingUSTU PhysTech Cup 20004259364

1090In the Army NowUSU Local Contest. March 20013543364

1060Flip GameNEERC 20003824373

1039Anniversary PartyUSU Championship 20003978384

1003ParityCentral European Olympiad in Informatics 19994027386

1031Railway TicketsUral Championship 19993986386

1077Travelling Tours1252396

1007Code WordsUSU Championship 19973865402

1055CombinationsNEERC 2000 Central Subregional3591419

1015Test the Difference!USU Local Contest. 19993418453

1094E-screenUSU Local Contest. March 20012812458

1019Line PaintingUSU Local Contest. 19993353461

1038Spell CheckerUSU Championship 20003153484

1072RoutingUSU Personal Contest 20012763501

1069Prufer CodeUSU Personal Contest 20012684515

1045Funny GameUSU Local Contest. March 20002901520

1091Tmutarakan ExamsUSU Local Contest. March 20012454525

1051Simple Game on a GridUSU Local Contest. March 20002847529

1056Centers of the NetNEERC 2000 Central Subregional2738549

1098Questions2228552

1066GarlandNEERC 20002470575

1095Nikifor 3USU Local Contest. March 20012236576

1004Sightseeing TripCentral European Olympiad in Informatics 19992670581

1071Nikifor 2USU Personal Contest 20012224621

1085MeetingSpring School Contest 20012174623

1027D++ AgainAutumn School Contest 20002443632

1054Tower of HanoiNEERC 2000 Central Subregional2349639

1064Binary SearchNEERC 20002181652

1070Local TimeUSU Personal Contest 20012099658

1061Buffer ManagerNEERC 20002144663

1059ExpressionNEERC 2000 Central Subregional2228674

1096Get the Right Route Plate!USU Local Contest. March 20011820707

1076Trash1938709

1057Amount of DegreesNEERC 2000 Central Subregional2102714

1088Ilya MurometzSpring School Contest 20011816745

1034Queens in Peaceful PositionsUral Championship 19991899809

1042Central HeatingUSU Championship 20001882809

1016Cube on the WalkUSU Local Contest. 19991885818

1089Verification with the DictionarySpring School Contest 20011615838

1030TitanicUral Championship 19991719893

1006Square FramesUSU Championship 19971577980

1040Airline CompanyUSU Championship 200015191001

1099Work Scheduling10091148

1037Memory ManagementUSU Championship 200012921175

1097Square Country 2USU Local Contest. March 20019401361

1035Cross-stitchUral Championship 199911211363

1065FrontierNEERC 200010051407

1050Preparing an ArticleUSU Local Contest. March 200010431435

1043Cover an ArcUSU Championship 20009241638

1062TriathlonNEERC 20007701830

1046Geometrical DreamsUSU Local Contest. March 20007901889

1093DartsUSU Local Contest. March 20016391993

1075Thread in a SpaceUSU Personal Contest 20016812009

1074Very Short ProblemUSU Personal Contest 20016482109

1063Domino PuzzleNEERC 20006342216

1092TransversalUSU Local Contest. March 20015482318

1058ChocolateNEERC 2000 Central Subregional5272803

1041NikiforUSU Championship 20003074827