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Solved problems:
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ID
Title
Source
Authors
Difficulty
1003
Parity
Central European Olympiad in Informatics 1999
4039
386
1019
Line Painting
USU Local Contest. 1999
3357
462
1028
Stars
Ural Championship 1999
5879
263
1037
Memory Management
USU Championship 2000
1294
1177
1067
Disk Tree
NEERC 2000
3939
362
1090
In the Army Now
USU Local Contest. March 2001
3551
364
1097
Square Country 2
USU Local Contest. March 2001
942
1362
1100
Final Standings
Tetrahedron Team Online Contest May 2001
11271
44
1126
Magnetic Storms
USU Championship 2001
5435
92
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
668
741
1220
Stacks
USU Championship 2002
1818
278
1251
Cemetery Manager
USU Local Contest. March 2003
330
1501
1306
Sequence Median
Ural Championship 1998
3535
146
1316
Electronic Auction
Ural Championship 2004. Round 1
1174
436
1350
Canteen
Spring School Contest 2005
1332
389
1369
Cockroach Race
Ural Championship 2005. Round 2
32
12427
1414
Astronomical Database
USU Championship 2005
1198
432
1424
Minibus
Timus Top Coders: First Challenge
715
705
1439
Battle with You-Know-Who
Ural Championship 2006
1158
434
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1928
252
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2957
165
1494
Monobilliards
Autumn School Contest 2006
5229
93
1521
War Games 2
Timus Top Coders: Third Challenge
3798
126
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1592
296
1542
Autocompletion
Ural Championship 2007
733
631
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1580
286
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
478
932
1613
For Fans of Statistics
Ural Championship 2008
3100
141
1628
White Streaks
USU Championship 2008
2502
168
1650
Billionaires
NEERC 2008 Eastern Subregional
2262
184
1654
Cipher Message
NEERC 2008 Eastern Subregional
7055
59
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3747
110
1682
Crazy Professor
USU Personal Contest 2009
755
535
1701
Ostap and Partners
Ural Championship 2009
627
638
1707
Hypnotoad's Secret
Ural Championship 2009
203
1907
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
166
2219
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1484
256
1772
Ski-Trails for Robots
Ural Championship 2010
506
729
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
145
2165
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
248
1299
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
714
459
1896
War Games 2.1
242
874
1977
Energy Wall
Ural Championship 2013
107
2448
1987
Nested Segments
Ural FU Championship 2013
1684
166
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
467
539
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
57
3800
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
807
285
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2807
2096
All Inclusive
Ural FU Personal Contest 2014
67
2801
2114
My craft
University academic school olympiad in informatics 2019
146
990
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
181
798
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
102
1361
2162
Graphmania
Ural School Programming Contest 2021
52
1085
2170
Experiment with Juice 2
Ural School Programming Contest 2022
33
1564
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
8
2173
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
15
1567
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