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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006104248

1086CryptographySpring School Contest 200112856106

1091Tmutarakan ExamsUSU Local Contest. March 20012460525

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001527594

1118Nontrivial NumbersAutumn School Contest 20014851103

1132Square Root903550

1133Fibonacci SequenceNEERC 2001 Central Subregional2238223

1141RSA Attack1365365

1204IdempotentsUSU Local Contest. March 20022193229

1261TipsAutumn School Contest 20031551329

1268Little ChuUSU Championship 2003691734

1286Starship TravelUSU Personal Contest 2004772660

1343Fairy TaleUSU Championship 20041242417

1352Mersenne PrimesSpring School Contest 20053968131

1355Bald Spot RevisitedSpring School Contest 20052461211

1356Something EasierSpring School Contest 20051751296

1430Crime and PunishmentTimus Top Coders: First Challenge1091464

1456Jedi Riddle 2Timus Top Coders: Second Challenge666746

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest698643

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest478933

1593Square Country. Version 2552732

1598DSA Attack464628

1698Square Country 5Petrozavodsk Winter 2009. USU Contest631637

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1428266

1807Cartridges for MaximNEERC 2010 Eastern Subregional2331484

2047MathsUral Championship 2015509470

2070Interesting NumbersUral Regional School Programming Contest 20151014228

2102Michael and CryptographyUral FU Junior Championship 20161453142

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019278538

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest1031354

2138The Good, the Bad and the UglyUral School Programming Contest 20191321108

2184Flint's Favorite NumberUral School Programming Contest 2024161529