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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5232800

1074Very Short ProblemUSU Personal Contest 20016392121

1148Building TowersDSAP Vietnam Online Contest November 20012761736

1166Funny Card GameNEERC 2001 Northern Subregional1333557

1171Lost in SpaceRomanian Online Contest December 20013821268

1177Like ComparisonsUSU Personal Contest 20023901246

1199Mouse1293407

1216Two Pawns and One KingUSU Championship 20022322077

1239Ghost BustersNEERC 20021533088

1271Sailing DirectionsUSU Championship 20031004625

1312TrayUral Championship 2004. Round 11603009

1344Gigantic TurnipUSU Championship 20041044525

1369Cockroach RaceUral Championship 2005. Round 23012916

1374MisereUral Championship 2005. Round 13810791

1376Dean's Pyramid 2Ural Championship 2005. Round 1449592

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest429963

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest944981

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2216189

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest449594

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855453

1394Ships. Version 22315699

1395Pascal vs. C++. Version 22032338

1399Economical Director3410761

1415Mobile LifeUSU Championship 2005469222

1432Twofold LuckUSU Personal Contest 2006547879

1438Time Limit ExceededUSU Personal Contest 20061592984

1460WiresPetrozavodsk Winter 2006. USU Contest1064202

1464LightPetrozavodsk Winter 2006. USU Contest1582901

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1094060

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest974516

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2613027

1536Delights of Pipe-weedUSU Personal Contest 2007557196

1548Sakura and StatisticsUral Championship 20072114939

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest379549

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest389350

1589SokobanNEERC 2007 Eastern Subregional1915365

1594Aztec Treasure744701

1596Knight Mare239557

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest844461

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest844461

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest715177

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest437912

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional506879

1653Death ConveyorNEERC 2008 Eastern Subregional516766

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest526589

1661DodecahedronPetrozavodsk Winter 2008. USU Contest983783

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest794590

1668Death Star 2Petrozavodsk Winter 2008. USU Contest605836

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2611298

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566163

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest566163

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2710849

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1292888

1708Sum of Digits 2Ural Championship 20092511416

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1103199

1763Expert FleaUral Championship 2010595349

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest377360

1840Victim of AdvertisingUral Championship 2011308475

1842Local RootsPetrozavodsk Summer 2010. USU Contest396700

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest694156

1848Fly HuntPetrozavodsk Summer 2010. USU Contest624560

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest337624

1906The Lost CivilizationUral Championship 2012297679

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511280

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection623917

2016Magic and ScienceNEERC 2014 Eastern Subregional198578

2054AstronomyUral Championship 2015207838

2076VasianaQualification of Eastern Subregional 2015178001

2082PokerUral Championship 2016158356

2131Open CupLater is better than never155541

2137Dynamic string complexityLater is better than never136023
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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