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Solved problems:
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ID
Title
Source
Authors
Difficulty
1003
Parity
Central European Olympiad in Informatics 1999
4014
385
1019
Line Painting
USU Local Contest. 1999
3329
462
1028
Stars
Ural Championship 1999
5807
264
1037
Memory Management
USU Championship 2000
1286
1174
1067
Disk Tree
NEERC 2000
3845
368
1090
In the Army Now
USU Local Contest. March 2001
3537
363
1097
Square Country 2
USU Local Contest. March 2001
939
1355
1100
Final Standings
Tetrahedron Team Online Contest May 2001
11216
44
1126
Magnetic Storms
USU Championship 2001
5411
92
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
660
743
1220
Stacks
USU Championship 2002
1812
277
1251
Cemetery Manager
USU Local Contest. March 2003
328
1498
1306
Sequence Median
Ural Championship 1998
3527
145
1316
Electronic Auction
Ural Championship 2004. Round 1
1165
436
1350
Canteen
Spring School Contest 2005
1304
394
1369
Cockroach Race
Ural Championship 2005. Round 2
30
12947
1414
Astronomical Database
USU Championship 2005
1190
431
1424
Minibus
Timus Top Coders: First Challenge
700
714
1439
Battle with You-Know-Who
Ural Championship 2006
1144
436
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1919
251
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2936
164
1494
Monobilliards
Autumn School Contest 2006
5032
96
1521
War Games 2
Timus Top Coders: Third Challenge
3608
132
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1580
296
1542
Autocompletion
Ural Championship 2007
725
632
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1560
287
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
475
928
1613
For Fans of Statistics
Ural Championship 2008
3078
140
1628
White Streaks
USU Championship 2008
2458
169
1650
Billionaires
NEERC 2008 Eastern Subregional
2137
193
1654
Cipher Message
NEERC 2008 Eastern Subregional
7014
59
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3621
112
1682
Crazy Professor
USU Personal Contest 2009
745
535
1701
Ostap and Partners
Ural Championship 2009
621
636
1707
Hypnotoad's Secret
Ural Championship 2009
202
1892
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
164
2215
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1470
255
1772
Ski-Trails for Robots
Ural Championship 2010
500
727
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
144
2143
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
245
1292
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
704
458
1896
War Games 2.1
228
898
1977
Energy Wall
Ural Championship 2013
105
2438
1987
Nested Segments
Ural FU Championship 2013
1674
163
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
456
538
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
56
3763
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
795
281
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2726
2096
All Inclusive
Ural FU Personal Contest 2014
64
2825
2114
My craft
University academic school olympiad in informatics 2019
141
976
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
173
794
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
97
1357
2162
Graphmania
Ural School Programming Contest 2021
43
1121
2170
Experiment with Juice 2
Ural School Programming Contest 2022
27
1605
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
5
2068
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
9
1635
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