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Problem set. Hardest Problems


IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional4922807

1074Very Short ProblemUSU Personal Contest 20016192067

1148Building TowersDSAP Vietnam Online Contest November 20012631720

1166Funny Card GameNEERC 2001 Northern Subregional1283494

1171Lost in SpaceRomanian Online Contest December 20013621264

1177Like ComparisonsUSU Personal Contest 20023751224

1199Mouse1153562

1216Two Pawns and One KingUSU Championship 20022202069

1239Ghost BustersNEERC 20021483017

1271Sailing DirectionsUSU Championship 2003944638

1312TrayUral Championship 2004. Round 11552941

1344Gigantic TurnipUSU Championship 2004974578

1369Cockroach RaceUral Championship 2005. Round 22713262

1374MisereUral Championship 2005. Round 13211716

1376Dean's Pyramid 2Ural Championship 2005. Round 1419649

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest409843

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest885022

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2016406

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest409843

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest845236

1394Ships. Version 21420508

1395Pascal vs. C++. Version 21892367

1399Economical Director3210600

1415Mobile LifeUSU Championship 2005449082

1432Twofold LuckUSU Personal Contest 2006517830

1438Time Limit ExceededUSU Personal Contest 20061493004

1460WiresPetrozavodsk Winter 2006. USU Contest994219

1464LightPetrozavodsk Winter 2006. USU Contest1482911

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1063926

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest894600

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2711904

1536Delights of Pipe-weedUSU Personal Contest 2007536971

1548Sakura and StatisticsUral Championship 20071716084

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest349527

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest359315

1589SokobanNEERC 2007 Eastern Subregional1119800

1594Aztec Treasure654832

1596Knight Mare199607

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest814265

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest714792

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest635317

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest407762

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional447059

1653Death ConveyorNEERC 2008 Eastern Subregional466807

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest486496

1661DodecahedronPetrozavodsk Winter 2008. USU Contest784281

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest714651

1668Death Star 2Petrozavodsk Winter 2008. USU Contest585541

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2411025

1674Drunk KingPetrozavodsk Summer 2008. USU Contest535950

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest526046

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2410860

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1182885

1708Sum of Digits 2Ural Championship 20092211478

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1072998

1763Expert FleaUral Championship 2010535320

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest356906

1840Victim of AdvertisingUral Championship 2011248926

1842Local RootsPetrozavodsk Summer 2010. USU Contest366353

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest653896

1848Fly HuntPetrozavodsk Summer 2010. USU Contest445412

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest317115

1906The Lost CivilizationUral Championship 2012277077

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1211064

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection593528

2016Magic and ScienceNEERC 2014 Eastern Subregional177719

2054AstronomyUral Championship 2015177187

2076VasianaQualification of Eastern Subregional 2015156957

2082PokerUral Championship 2016127563