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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20005906243

1086CryptographySpring School Contest 200112221106

1091Tmutarakan ExamsUSU Local Contest. March 20012355521

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001505194

1118Nontrivial NumbersAutumn School Contest 20014635103

1132Square Root836564

1133Fibonacci SequenceNEERC 2001 Central Subregional2153221

1141RSA Attack1295366

1204IdempotentsUSU Local Contest. March 20022109226

1261TipsAutumn School Contest 20031463332

1268Little ChuUSU Championship 2003658733

1286Starship TravelUSU Personal Contest 2004722672

1343Fairy TaleUSU Championship 20041169422

1352Mersenne PrimesSpring School Contest 20053836129

1355Bald Spot RevisitedSpring School Contest 20052345211

1356Something EasierSpring School Contest 20051684294

1430Crime and PunishmentTimus Top Coders: First Challenge1045461

1456Jedi Riddle 2Timus Top Coders: Second Challenge632747

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest666633

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest457916

1593Square Country. Version 2513730

1598DSA Attack374717

1698Square Country 5Petrozavodsk Winter 2009. USU Contest602618

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1356257

1807Cartridges for MaximNEERC 2010 Eastern Subregional2261391

2047MathsUral Championship 2015457441

2070Interesting NumbersUral Regional School Programming Contest 2015917210

2102Michael and CryptographyUral FU Junior Championship 20161285130

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019204525

2124Algebra on SegmentPetrozavodsk Summer 2018. t.me/umnik_team Contest911090

2138The Good, the Bad and the UglyUral School Programming Contest 2019990100