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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006002245

1086CryptographySpring School Contest 200112588105

1091Tmutarakan ExamsUSU Local Contest. March 20012398524

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001516494

1118Nontrivial NumbersAutumn School Contest 20014728103

1132Square Root863559

1133Fibonacci SequenceNEERC 2001 Central Subregional2189222

1141RSA Attack1334363

1204IdempotentsUSU Local Contest. March 20022147227

1261TipsAutumn School Contest 20031502331

1268Little ChuUSU Championship 2003670736

1286Starship TravelUSU Personal Contest 2004738672

1343Fairy TaleUSU Championship 20041206418

1352Mersenne PrimesSpring School Contest 20053912130

1355Bald Spot RevisitedSpring School Contest 20052403211

1356Something EasierSpring School Contest 20051716295

1430Crime and PunishmentTimus Top Coders: First Challenge1066463

1456Jedi Riddle 2Timus Top Coders: Second Challenge648745

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest687631

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest464928

1593Square Country. Version 2528734

1598DSA Attack424584

1698Square Country 5Petrozavodsk Winter 2009. USU Contest611631

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1391261

1807Cartridges for MaximNEERC 2010 Eastern Subregional2311422

2047MathsUral Championship 2015478456

2070Interesting NumbersUral Regional School Programming Contest 2015959218

2102Michael and CryptographyUral FU Junior Championship 20161374134

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019246513

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest931254

2138The Good, the Bad and the UglyUral School Programming Contest 20191187100