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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006050247

1086CryptographySpring School Contest 200112749105

1091Tmutarakan ExamsUSU Local Contest. March 20012438522

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001523194

1118Nontrivial NumbersAutumn School Contest 20014782103

1132Square Root884554

1133Fibonacci SequenceNEERC 2001 Central Subregional2214223

1141RSA Attack1349364

1204IdempotentsUSU Local Contest. March 20022162229

1261TipsAutumn School Contest 20031537328

1268Little ChuUSU Championship 2003682733

1286Starship TravelUSU Personal Contest 2004760662

1343Fairy TaleUSU Championship 20041227416

1352Mersenne PrimesSpring School Contest 20053937130

1355Bald Spot RevisitedSpring School Contest 20052425211

1356Something EasierSpring School Contest 20051728296

1430Crime and PunishmentTimus Top Coders: First Challenge1074465

1456Jedi Riddle 2Timus Top Coders: Second Challenge656747

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest690639

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest470932

1593Square Country. Version 2536738

1598DSA Attack444601

1698Square Country 5Petrozavodsk Winter 2009. USU Contest618637

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1401265

1807Cartridges for MaximNEERC 2010 Eastern Subregional2301464

2047MathsUral Championship 2015486470

2070Interesting NumbersUral Regional School Programming Contest 2015987223

2102Michael and CryptographyUral FU Junior Championship 20161410138

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019261527

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest951340

2138The Good, the Bad and the UglyUral School Programming Contest 20191254104