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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5592709

1074Very Short ProblemUSU Personal Contest 20016642109

1148Building TowersDSAP Vietnam Online Contest November 20012911702

1166Funny Card GameNEERC 2001 Northern Subregional1453381

1171Lost in SpaceRomanian Online Contest December 20014021245

1177Like ComparisonsUSU Personal Contest 20024081230

1199Mouse1273578

1216Two Pawns and One KingUSU Championship 20022472017

1239Ghost BustersNEERC 20021623018

1271Sailing DirectionsUSU Championship 20031144228

1312TrayUral Championship 2004. Round 11712911

1344Gigantic TurnipUSU Championship 20041184150

1369Cockroach RaceUral Championship 2005. Round 2449850

1374MisereUral Championship 2005. Round 1528599

1376Dean's Pyramid 2Ural Championship 2005. Round 13811108

1383Flower-garden DesignsPetrozavodsk Summer 2005. MSU+USU Contest568079

1384Goat in the Garden 4Petrozavodsk Summer 2005. MSU+USU Contest1134335

1388PhotoPetrozavodsk Summer 2005. MSU+USU Contest4010665

1390Shots at WallsPetrozavodsk Summer 2005. MSU+USU Contest558204

1391SnakePetrozavodsk Summer 2005. MSU+USU Contest935177

1394Ships. Version 22814033

1395Pascal vs. C++. Version 22232205

1399Economical Director508168

1415Mobile LifeUSU Championship 2005577935

1432Twofold LuckUSU Personal Contest 2006656932

1438Time Limit ExceededUSU Personal Contest 20061682921

1460WiresPetrozavodsk Winter 2006. USU Contest1193903

1464LightPetrozavodsk Winter 2006. USU Contest1742737

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1193872

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest1183902

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest409714

1536Delights of Pipe-weedUSU Personal Contest 2007567341

1548Sakura and StatisticsUral Championship 20073410910

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest547284

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest497901

1589SokobanNEERC 2007 Eastern Subregional2314032

1594Aztec Treasure934019

1596Knight Mare357488

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest974090

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest944208

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest824756

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest566630

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional586342

1653Death ConveyorNEERC 2008 Eastern Subregional675600

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest645772

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1123501

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest894315

1668Death Star 2Petrozavodsk Winter 2008. USU Contest715274

1672Droid fliesPetrozavodsk Summer 2008. USU Contest438027

1674Drunk KingPetrozavodsk Summer 2008. USU Contest645749

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest804727

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest369136

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1432747

1708Sum of Digits 2Ural Championship 2009388718

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1193126

1763Expert FleaUral Championship 2010684986

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest476430

1840Victim of AdvertisingUral Championship 2011436789

1842Local RootsPetrozavodsk Summer 2010. USU Contest535547

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest803883

1848Fly HuntPetrozavodsk Summer 2010. USU Contest724262

1853Laser TechnologiesPetrozavodsk Summer 2011. USU Contest446463

1906The Lost CivilizationUral Championship 2012426184

1952To Kill the DragonPetrozavodsk Winter 2013. Ural FU Contest278232

1954Five PalindromesPetrozavodsk Winter 2013. Ural FU Contest783462

2016Magic and ScienceNEERC 2014 Eastern Subregional346191

2054AstronomyUral Championship 2015345892

2076VasianaNEERC 2015 Eastern Subregional Qualifier306018

2082PokerUral Championship 2016295995

2131Open CupLater is better than never274477

2137Dynamic string complexityLater is better than never264601
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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