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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1074Very Short ProblemUSU Personal Contest 20016012059

1058ChocolateNEERC 2000 Central Subregional4712834

1171Lost in SpaceRomanian Online Contest December 20013401301

1177Like ComparisonsUSU Personal Contest 20023381312

1148Building TowersDSAP Vietnam Online Contest November 20012481762

1216Two Pawns and One KingUSU Championship 20022162041

1395Pascal vs. C++. Version 21652607

1312TrayUral Championship 2004. Round 11532889

1239Ghost BustersNEERC 20021472943

1464LightPetrozavodsk Winter 2006. USU Contest1442888

1438Time Limit ExceededUSU Personal Contest 20061403087

1166Funny Card GameNEERC 2001 Northern Subregional1213571

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1132859

1199Mouse1083642

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1062868

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1033895

1344Gigantic TurnipUSU Championship 2004974445

1460WiresPetrozavodsk Winter 2006. USU Contest964196

1271Sailing DirectionsUSU Championship 2003924587

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest835139

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest805311

1661DodecahedronPetrozavodsk Winter 2008. USU Contest774130

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest725368

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest694696

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest684607

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest643681

1594Aztec Treasure624785

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest615226

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection543473

1763Expert FleaUral Championship 2010525106

1536Delights of Pipe-weedUSU Personal Contest 2007516942

1674Drunk KingPetrozavodsk Summer 2008. USU Contest486162

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest476509

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest476304

1668Death Star 2Petrozavodsk Winter 2008. USU Contest476304

1432Twofold LuckUSU Personal Contest 2006468268

1653Death ConveyorNEERC 2008 Eastern Subregional446738

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional426998

1415Mobile LifeUSU Championship 2005419337

1848Fly HuntPetrozavodsk Summer 2010. USU Contest405449

1376Dean's Pyramid 2Ural Championship 2005. Round 1399753

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest399754

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest377894

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest356478

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest349158

1842Local RootsPetrozavodsk Summer 2010. USU Contest346192

1374MisereUral Championship 2005. Round 13211378

1399Economical Director3010742

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308934

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest296972

1369Cockroach RaceUral Championship 2005. Round 22613235

1906The Lost CivilizationUral Championship 2012266700

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2511513

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2414058

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2412494

1840Victim of AdvertisingUral Championship 2011238607

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2211168

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2210987

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1916481

1596Knight Mare198912

1708Sum of Digits 2Ural Championship 20091812486

2016Magic and ScienceNEERC 2014 Eastern Subregional176899

2054AstronomyUral Championship 2015166597

1548Sakura and StatisticsUral Championship 20071417436

2076VasianaQualification of Eastern Subregional 2015136557

1394Ships. Version 21221727

2082PokerUral Championship 2016126503

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1011113

1589SokobanNEERC 2007 Eastern Subregional921024
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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