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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5282812

1074Very Short ProblemUSU Personal Contest 20016492117

1148Building TowersDSAP Vietnam Online Contest November 20012801735

1166Funny Card GameNEERC 2001 Northern Subregional1333601

1171Lost in SpaceRomanian Online Contest December 20013871268

1177Like ComparisonsUSU Personal Contest 20023931252

1199Mouse1313407

1216Two Pawns and One KingUSU Championship 20022342086

1239Ghost BustersNEERC 20021543109

1271Sailing DirectionsUSU Championship 20031014641

1312TrayUral Championship 2004. Round 11623010

1344Gigantic TurnipUSU Championship 20041074463

1369Cockroach RaceUral Championship 2005. Round 23312161

1374MisereUral Championship 2005. Round 14210081

1376Dean's Pyramid 2Ural Championship 2005. Round 1459531

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest459533

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest964946

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2415420

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest479198

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855519

1394Ships. Version 22415421

1395Pascal vs. C++. Version 22082314

1399Economical Director3710219

1415Mobile LifeUSU Championship 2005479170

1432Twofold LuckUSU Personal Contest 2006547979

1438Time Limit ExceededUSU Personal Contest 20061603004

1460WiresPetrozavodsk Winter 2006. USU Contest1074222

1464LightPetrozavodsk Winter 2006. USU Contest1602906

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1114048

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest994494

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2812522

1536Delights of Pipe-weedUSU Personal Contest 2007557302

1548Sakura and StatisticsUral Championship 20072214689

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest409119

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest399305

1589SokobanNEERC 2007 Eastern Subregional1915612

1594Aztec Treasure774629

1596Knight Mare249537

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest864446

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest874400

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest725205

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest457761

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516891

1653Death ConveyorNEERC 2008 Eastern Subregional546568

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest546503

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1003783

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest804624

1668Death Star 2Petrozavodsk Winter 2008. USU Contest615862

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2711200

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566279

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest695246

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2910491

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1312902

1708Sum of Digits 2Ural Championship 20092711009

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1123212

1763Expert FleaUral Championship 2010605389

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest416949

1840Victim of AdvertisingUral Championship 2011318477

1842Local RootsPetrozavodsk Summer 2010. USU Contest466018

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest714160

1848Fly HuntPetrozavodsk Summer 2010. USU Contest634616

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest357479

1906The Lost CivilizationUral Championship 2012307714

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511651

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection663833

2016Magic and ScienceNEERC 2014 Eastern Subregional218338

2054AstronomyUral Championship 2015237425

2076VasianaQualification of Eastern Subregional 2015188078

2082PokerUral Championship 2016168428

2131Open CupLater is better than never155987

2137Dynamic string complexityLater is better than never136507
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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