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Problem set. Number Theory Problems


IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006079247

1086CryptographySpring School Contest 200112793106

1091Tmutarakan ExamsUSU Local Contest. March 20012445524

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001524794

1118Nontrivial NumbersAutumn School Contest 20014827103

1132Square Root893551

1133Fibonacci SequenceNEERC 2001 Central Subregional2228222

1141RSA Attack1356365

1204IdempotentsUSU Local Contest. March 20022176229

1261TipsAutumn School Contest 20031544328

1268Little ChuUSU Championship 2003687732

1286Starship TravelUSU Personal Contest 2004766660

1343Fairy TaleUSU Championship 20041234416

1352Mersenne PrimesSpring School Contest 20053951131

1355Bald Spot RevisitedSpring School Contest 20052448211

1356Something EasierSpring School Contest 20051741296

1430Crime and PunishmentTimus Top Coders: First Challenge1083464

1456Jedi Riddle 2Timus Top Coders: Second Challenge661745

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest692642

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest475929

1593Square Country. Version 2542736

1598DSA Attack444679

1698Square Country 5Petrozavodsk Winter 2009. USU Contest623637

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1412265

1807Cartridges for MaximNEERC 2010 Eastern Subregional2321467

2047MathsUral Championship 2015497468

2070Interesting NumbersUral Regional School Programming Contest 2015996225

2102Michael and CryptographyUral FU Junior Championship 20161428140

2117Polyphemus' triplesUniversity academic school olympiad in informatics 2019268531

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team Contest971360

2138The Good, the Bad and the UglyUral School Programming Contest 20191285105

2184Flint's Favorite NumberUral School Programming Contest 202471840