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Problem set. Number Theory Problems

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

IDTitleSourceAuthorsDifficulty

1049Brave BalloonistsUSU Local Contest. March 20006213249

1086CryptographySpring School Contest 200113045107

1091Tmutarakan ExamsUSU Local Contest. March 20012494529

1104Don’t Ask Woman about Her AgeTetrahedron Team Online Contest May 2001537495

1118Nontrivial NumbersAutumn School Contest 20014940103

1132Square Root931544

1133Fibonacci SequenceNEERC 2001 Central Subregional2268225

1141RSA Attack1403363

1204IdempotentsUSU Local Contest. March 20022227230

1261TipsAutumn School Contest 20031585329

1268Little ChuUSU Championship 2003717721

1286Starship TravelUSU Personal Contest 2004794654

1343Fairy TaleUSU Championship 20041266416

1352Mersenne PrimesSpring School Contest 20054015132

1355Bald Spot RevisitedSpring School Contest 20052494212

1356Something EasierSpring School Contest 20051775298

1430Crime and PunishmentTimus Top Coders: First Challenge1122460

1456Jedi Riddle 2Timus Top Coders: Second Challenge680745

1554Multiplicative FunctionsPetrozavodsk Summer 2007. NSU Contest719639

1560Elementary Symmetric FunctionsPetrozavodsk Summer 2007. NSU Contest490932

1593Square Country. Version 2573726

1598DSA Attack663607

1698Square Country 5Petrozavodsk Winter 2009. USU Contest646641

1748The Most Complex NumberPetrozavodsk Summer 2009. Ufa SATU Contest1466268

1807Cartridges for MaximNEERC 2010 Eastern Subregional2431476

2047MathsUral Championship 2015526484

2070Interesting NumbersUral Regional School Programming Contest 20151047235

2102Michael and CryptographyUral FU Junior Championship 20161507148

2117Polyphemus' triplesUniversity-Academy Olympiad 2019307543

2124Algebra on SegmentPetrozavodsk Summer 2018. umnik_team contest1201308

2138The Good, the Bad and the UglyUral School Programming Contest 20191439111

2184Flint's Favorite NumberUral School Programming Contest 2024401182

2205Natural NumbersUniversity-Academy Olympiad 202239800

2206Runes in the Field 2University-Academy Olympiad 2022261088

2208Two GiftsUniversity-Academy Olympiad 202332931

2211Integer TrianglesUniversity-Academy Olympiad 2023241152

2220Reciprocal of GCDICPC Ural Regional Contest Qualifier 202546699

2234συναριθμoICPC Ural Regional Contest Qualifier 2026101392

2240UwU-EquationICPC UrFU Contest Qualifier 2026101341

2242Root CalculatorICPC UrFU Contest Qualifier 202681490
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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