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Problem set. Number Theory Problems

Solved problems: show | hide  •  Sort by: id | authors | difficulty

IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006152249

1086CryptographySpring School Contest 200112958106

1091Tmutarakan ExamsUSU Local Contest. March 20012485525

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001532994

1118Nontrivial NumbersAutumn School Contest 20014890103

1132Square Root920545

1133Fibonacci SequenceNEERC 2001 Central Subregional2248224

1141RSA Attack1390362

1204IdempotentsUSU Local Contest. March 20022209229

1261TipsAutumn School Contest 20031567329

1268Little ChuUSU Championship 2003709722

1286Starship TravelUSU Personal Contest 2004787654

1343Fairy TaleUSU Championship 20041253416

1352Mersenne PrimesSpring School Contest 20053987132

1355Bald Spot RevisitedSpring School Contest 20052471212

1356Something EasierSpring School Contest 20051759297

1430Crime and PunishmentTimus Top Coders: First Challenge1110461

1456Jedi Riddle 2Timus Top Coders: Second Challenge670748

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest713637

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest482935

1593Square Country. Version 2567723

1598DSA Attack603801

1698Square Country 5Petrozavodsk Winter 2009. USU Contest639638

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1450266

1807Cartridges for MaximNEERC 2010 Eastern Subregional2371484

2047MathsUral Championship 2015519474

2070Interesting NumbersUral Regional School Programming Contest 20151030231

2102Michael and CryptographyUral FU Junior Championship 20161480144

2117Polyphemus' triplesUniversity-Academy Olympiad 2019296532

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team contest1111329

2138The Good, the Bad and the UglyUral School Programming Contest 20191353111

2184Flint's Favorite NumberUral School Programming Contest 2024271315

2205Natural NumbersUniversity-Academy Olympiad 2022151141

2206Runes in the Field 2University-Academy Olympiad 202271676

2208Two GiftsUniversity-Academy Olympiad 2023131237

2211Integer TrianglesUniversity-Academy Olympiad 202381582

2220Reciprocal of GCDICPC Ural Regional Contest Qualifier 2025171054
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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