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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006094248

1086CryptographySpring School Contest 200112833106

1091Tmutarakan ExamsUSU Local Contest. March 20012454525

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001525994

1118Nontrivial NumbersAutumn School Contest 20014840103

1132Square Root896552

1133Fibonacci SequenceNEERC 2001 Central Subregional2232223

1141RSA Attack1359366

1204IdempotentsUSU Local Contest. March 20022180230

1261TipsAutumn School Contest 20031548329

1268Little ChuUSU Championship 2003688734

1286Starship TravelUSU Personal Contest 2004769661

1343Fairy TaleUSU Championship 20041237417

1352Mersenne PrimesSpring School Contest 20053961131

1355Bald Spot RevisitedSpring School Contest 20052454211

1356Something EasierSpring School Contest 20051744296

1430Crime and PunishmentTimus Top Coders: First Challenge1088464

1456Jedi Riddle 2Timus Top Coders: Second Challenge663747

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest695643

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest477930

1593Square Country. Version 2543740

1598DSA Attack444748

1698Square Country 5Petrozavodsk Winter 2009. USU Contest629635

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1420266

1807Cartridges for MaximNEERC 2010 Eastern Subregional2331474

2047MathsUral Championship 2015503470

2070Interesting NumbersUral Regional School Programming Contest 20151001228

2102Michael and CryptographyUral FU Junior Championship 20161442141

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019273536

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest1011349

2138The Good, the Bad and the UglyUral School Programming Contest 20191311106

2184Flint's Favorite NumberUral School Programming Contest 2024121641