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Problem set. Hardest Problems

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

IDTitleSourceAuthorsDifficulty

1058ChocolateNEERC 2000 Central Subregional5282810

1074Very Short ProblemUSU Personal Contest 20016492116

1148Building TowersDSAP Vietnam Online Contest November 20012801734

1166Funny Card GameNEERC 2001 Northern Subregional1333600

1171Lost in SpaceRomanian Online Contest December 20013871268

1177Like ComparisonsUSU Personal Contest 20023931252

1199Mouse1313405

1216Two Pawns and One KingUSU Championship 20022342086

1239Ghost BustersNEERC 20021543107

1271Sailing DirectionsUSU Championship 20031014639

1312TrayUral Championship 2004. Round 11613027

1344Gigantic TurnipUSU Championship 20041064500

1369Cockroach RaceUral Championship 2005. Round 23312156

1374MisereUral Championship 2005. Round 14110275

1376Dean's Pyramid 2Ural Championship 2005. Round 1449704

1383Flower-garden DesignsPetrozavodsk Summer 2005. Moscow+Ural Contest459529

1384Goat in the Garden 4Petrozavodsk Summer 2005. Moscow+Ural Contest964944

1388PhotoPetrozavodsk Summer 2005. Moscow+Ural Contest2415415

1390Shots at WallsPetrozavodsk Summer 2005. Moscow+Ural Contest479195

1391SnakePetrozavodsk Summer 2005. Moscow+Ural Contest855517

1394Ships. Version 22415415

1395Pascal vs. C++. Version 22082313

1399Economical Director3710214

1415Mobile LifeUSU Championship 2005479166

1432Twofold LuckUSU Personal Contest 2006547976

1438Time Limit ExceededUSU Personal Contest 20061603003

1460WiresPetrozavodsk Winter 2006. USU Contest1074221

1464LightPetrozavodsk Winter 2006. USU Contest1602905

1478Spy SatellitesPetrozavodsk Summer 2006. Ural+Orel Contest1114047

1479Scheduled CheckingPetrozavodsk Summer 2006. Ural+Orel Contest994492

1524Men in BlackPetrozavodsk Winter 2007. D.Gozman Contest2812516

1536Delights of Pipe-weedUSU Personal Contest 2007557299

1548Sakura and StatisticsUral Championship 20072214683

1555Find the Treasure!Petrozavodsk Summer 2007. NSU Contest409114

1556Multishot in the Secret Cow LevelPetrozavodsk Summer 2007. NSU Contest399300

1589SokobanNEERC 2007 Eastern Subregional1915605

1594Aztec Treasure774626

1596Knight Mare249529

1618Arrays PrintingPetrozavodsk Winter 2008. ITMO Contest864444

1621Definite IntegralPetrozavodsk Winter 2008. ITMO Contest874398

1624Go out of here!Petrozavodsk Winter 2008. ITMO Contest725202

1626Interfering SegmentPetrozavodsk Winter 2008. ITMO Contest457756

1649Abstractionism to the PeopleNEERC 2008 Eastern Subregional516887

1653Death ConveyorNEERC 2008 Eastern Subregional536668

1660The Island of Bad LuckPetrozavodsk Winter 2008. USU Contest546499

1661DodecahedronPetrozavodsk Winter 2008. USU Contest1003781

1662Goat in the Garden 6Petrozavodsk Winter 2008. USU Contest804622

1668Death Star 2Petrozavodsk Winter 2008. USU Contest615858

1672Droid fliesPetrozavodsk Summer 2008. USU Contest2711194

1674Drunk KingPetrozavodsk Summer 2008. USU Contest566275

1678Space Poker 3Petrozavodsk Summer 2008. USU Contest695243

1693Loyd's ProblemPetrozavodsk Winter 2009. USU Contest2910485

1695Work for RobotsPetrozavodsk Winter 2009. USU Contest1312900

1708Sum of Digits 2Ural Championship 20092611308

1714Mnemonics and Palindromes 2NEERC 2009 Eastern Subregional1123210

1763Expert FleaUral Championship 2010605386

1819Professional ApproachPetrozavodsk Summer 2010. Tavrida NU Contest416944

1840Victim of AdvertisingUral Championship 2011318471

1842Local RootsPetrozavodsk Summer 2010. USU Contest466013

1843Cutting a ParallelepipedPetrozavodsk Summer 2010. USU Contest714157

1848Fly HuntPetrozavodsk Summer 2010. USU Contest634613

1853Laser TechnologiesPetrozavodsk Summer 2011. Ural SU Team.GOV Contest357473

1906The Lost CivilizationUral Championship 2012307707

1952To Kill the DragonPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection1511640

1954Five PalindromesPetrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection663829

2016Magic and ScienceNEERC 2014 Eastern Subregional218329

2054AstronomyUral Championship 2015237416

2076VasianaQualification of Eastern Subregional 2015188067

2082PokerUral Championship 2016168416

2131Open CupLater is better than never155974

2137Dynamic string complexityLater is better than never136493
Solved problems: show | hide  •  Sort by: id | authors | difficulty
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