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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1171Lost in SpaceRomanian Online Contest December 20013221294

1177Like ComparisonsUSU Personal Contest 20023201306

1148Building TowersDSAP Vietnam Online Contest November 20012331766

1216Two Pawns and One KingUSU Championship 20022072009

1074Very Short ProblemUSU Personal Contest 20015642066

1395Pascal vs. C++. Version 21572579

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional992765

1312TrayUral Championship 2004. Round 11472841

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1032843

1058ChocolateNEERC 2000 Central Subregional4352886

1239Ghost BustersNEERC 20021412893

1464LightPetrozavodsk Winter 2006. USU Contest1342908

1438Time Limit ExceededUSU Personal Contest 20061333062

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest613357

1166Funny Card GameNEERC 2001 Northern Subregional1163514

1199Mouse1033567

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection403717

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest983833

1460WiresPetrozavodsk Winter 2006. USU Contest944026

1661DodecahedronPetrozavodsk Winter 2008. USU Contest694168

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest654391

1344Gigantic TurnipUSU Championship 2004914466

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest644615

1271Sailing DirectionsUSU Championship 2003854663

1594Aztec Treasure564755

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest604879

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest775213

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest765273

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest665447

1763Expert FleaUral Championship 2010425472

1848Fly HuntPetrozavodsk Summer 2010. USU Contest335543

2016Magic and ScienceNEERC 2014 Eastern Subregional155925

1668Death Star 2Petrozavodsk Winter 2008. USU Contest455987

1674Drunk KingPetrozavodsk Summer 2008. USU Contest446060

1842Local RootsPetrozavodsk Summer 2010. USU Contest296111

2076VasianaQualification of eastern subregional contest 201586167

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest316300

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest446325

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest426333

1906The Lost CivilizationUral Championship 2012226426

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest276427

2082PokerUral Championship 201666432

1536Delights of Pipe-weedUSU Personal Contest 2007496720

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional396818

1653Death ConveyorNEERC 2008 Eastern Subregional386960

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest357590

1840Victim of AdvertisingUral Championship 2011218079

1432Twofold LuckUSU Personal Contest 2006448108

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest298391

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest328928

1415Mobile LifeUSU Championship 2005399217

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection109290

1376Dean's Pyramid 2Ural Championship 2005. Round 1389446

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest379649

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2110557

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2010707

1399Economical Director2710890

1374MisereUral Championship 2005. Round 12911626

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2211717

1708Sum of Digits 2Ural Championship 20091612274

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2212432

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2313742

1548Sakura and StatisticsUral Championship 20071813971

1369Cockroach RaceUral Championship 2005. Round 22214122

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1816196

1589SokobanNEERC 2007 Eastern Subregional721842

1394Ships. Version 2726678
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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