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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006009245

1086CryptographySpring School Contest 200112607105

1091Tmutarakan ExamsUSU Local Contest. March 20012404523

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001516994

1118Nontrivial NumbersAutumn School Contest 20014734103

1132Square Root865559

1133Fibonacci SequenceNEERC 2001 Central Subregional2193222

1141RSA Attack1335364

1204IdempotentsUSU Local Contest. March 20022149228

1261TipsAutumn School Contest 20031507331

1268Little ChuUSU Championship 2003672736

1286Starship TravelUSU Personal Contest 2004739672

1343Fairy TaleUSU Championship 20041209417

1352Mersenne PrimesSpring School Contest 20053913130

1355Bald Spot RevisitedSpring School Contest 20052407211

1356Something EasierSpring School Contest 20051718295

1430Crime and PunishmentTimus Top Coders: First Challenge1068462

1456Jedi Riddle 2Timus Top Coders: Second Challenge651743

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest687632

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest465928

1593Square Country. Version 2529735

1598DSA Attack434522

1698Square Country 5Petrozavodsk Winter 2009. USU Contest612631

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1391261

1807Cartridges for MaximNEERC 2010 Eastern Subregional2311426

2047MathsUral Championship 2015479458

2070Interesting NumbersUral Regional School Programming Contest 2015964219

2102Michael and CryptographyUral FU Junior Championship 20161375135

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019247517

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest931268

2138The Good, the Bad and the UglyUral School Programming Contest 20191193101