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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5312802

1074Very Short ProblemUSU Personal Contest 20016492121

1148Building TowersDSAP Vietnam Online Contest November 20012801739

1166Funny Card GameNEERC 2001 Northern Subregional1333609

1171Lost in SpaceRomanian Online Contest December 20013871271

1177Like ComparisonsUSU Personal Contest 20023931255

1199Mouse1323391

1216Two Pawns and One KingUSU Championship 20022342091

1239Ghost BustersNEERC 20021543115

1271Sailing DirectionsUSU Championship 20031014651

1312TrayUral Championship 2004. Round 11623017

1344Gigantic TurnipUSU Championship 20041074472

1369Cockroach RaceUral Championship 2005. Round 23312186

1374MisereUral Championship 2005. Round 14210102

1376Dean's Pyramid 2Ural Championship 2005. Round 12714197

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest459552

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest964956

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2515010

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest479217

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855530

1394Ships. Version 22515011

1395Pascal vs. C++. Version 22102298

1399Economical Director3710244

1415Mobile LifeUSU Championship 2005479188

1432Twofold LuckUSU Personal Contest 2006547996

1438Time Limit ExceededUSU Personal Contest 20061603010

1460WiresPetrozavodsk Winter 2006. USU Contest1074232

1464LightPetrozavodsk Winter 2006. USU Contest1602913

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1114058

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest994505

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2812553

1536Delights of Pipe-weedUSU Personal Contest 2007557320

1548Sakura and StatisticsUral Championship 20072214727

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest409143

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest399330

1589SokobanNEERC 2007 Eastern Subregional2015133

1594Aztec Treasure784592

1596Knight Mare249581

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest864460

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest874414

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest725221

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest457784

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516912

1653Death ConveyorNEERC 2008 Eastern Subregional546588

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest546523

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1003795

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest804639

1668Death Star 2Petrozavodsk Winter 2008. USU Contest625799

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2711236

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566299

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest695262

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2910525

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1312911

1708Sum of Digits 2Ural Championship 20092711045

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1123223

1763Expert FleaUral Championship 2010605409

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest416977

1840Victim of AdvertisingUral Championship 2011318513

1842Local RootsPetrozavodsk Summer 2010. USU Contest466044

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest714179

1848Fly HuntPetrozavodsk Summer 2010. USU Contest634637

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest357512

1906The Lost CivilizationUral Championship 2012317563

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511715

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection673804

2016Magic and ScienceNEERC 2014 Eastern Subregional218392

2054AstronomyUral Championship 2015237477

2076VasianaQualification of Eastern Subregional 2015188140

2082PokerUral Championship 2016168495

2131Open CupLater is better than never156063

2137Dynamic string complexityLater is better than never136590
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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