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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1171Lost in SpaceRomanian Online Contest December 20013381302

1177Like ComparisonsUSU Personal Contest 20023351317

1148Building TowersDSAP Vietnam Online Contest November 20012471761

1216Two Pawns and One KingUSU Championship 20022152041

1074Very Short ProblemUSU Personal Contest 20015992056

1395Pascal vs. C++. Version 21632625

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1132839

1058ChocolateNEERC 2000 Central Subregional4672845

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1052871

1464LightPetrozavodsk Winter 2006. USU Contest1442875

1312TrayUral Championship 2004. Round 11512912

1239Ghost BustersNEERC 20021462949

1438Time Limit ExceededUSU Personal Contest 20061393094

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection543428

1166Funny Card GameNEERC 2001 Northern Subregional1213556

1199Mouse1083624

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest643645

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1023912

1661DodecahedronPetrozavodsk Winter 2008. USU Contest764150

1460WiresPetrozavodsk Winter 2006. USU Contest964176

1344Gigantic TurnipUSU Championship 2004954511

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest674636

1271Sailing DirectionsUSU Championship 2003894706

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest684727

1594Aztec Treasure614819

1763Expert FleaUral Championship 2010515148

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest825174

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest605267

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest805289

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest725343

1848Fly HuntPetrozavodsk Summer 2010. USU Contest405394

1674Drunk KingPetrozavodsk Summer 2008. USU Contest486120

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest476262

1842Local RootsPetrozavodsk Summer 2010. USU Contest336273

2082PokerUral Championship 2016126358

1668Death Star 2Petrozavodsk Winter 2008. USU Contest466374

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest356420

2054AstronomyUral Championship 2015166478

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest466583

1906The Lost CivilizationUral Championship 2012266622

2076VasianaQualification of Eastern Subregional 2015126711

2016Magic and ScienceNEERC 2014 Eastern Subregional176787

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest296903

1536Delights of Pipe-weedUSU Personal Contest 2007516907

1653Death ConveyorNEERC 2008 Eastern Subregional426952

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional417089

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest377844

1432Twofold LuckUSU Personal Contest 2006468232

1840Victim of AdvertisingUral Championship 2011238526

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest308875

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest349107

1596Knight Mare189131

1415Mobile LifeUSU Championship 2005419299

1376Dean's Pyramid 2Ural Championship 2005. Round 1399713

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest389917

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2210912

1399Economical Director2910963

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1010968

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2211093

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest2511449

1374MisereUral Championship 2005. Round 12912204

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2312807

1708Sum of Digits 2Ural Championship 20091712859

1369Cockroach RaceUral Championship 2005. Round 22513557

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest2414001

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest1817001

1548Sakura and StatisticsUral Championship 20071417345

1589SokobanNEERC 2007 Eastern Subregional822068

1394Ships. Version 21122669
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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