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Solved problems:
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ID
Title
Source
Authors
Difficulty
1003
Parity
Central European Olympiad in Informatics 1999
4027
386
1019
Line Painting
USU Local Contest. 1999
3353
461
1028
Stars
Ural Championship 1999
5860
263
1037
Memory Management
USU Championship 2000
1292
1175
1067
Disk Tree
NEERC 2000
3935
362
1090
In the Army Now
USU Local Contest. March 2001
3543
364
1097
Square Country 2
USU Local Contest. March 2001
940
1361
1100
Final Standings
Tetrahedron Team Online Contest May 2001
11254
44
1126
Magnetic Storms
USU Championship 2001
5427
92
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
665
742
1220
Stacks
USU Championship 2002
1816
277
1251
Cemetery Manager
USU Local Contest. March 2003
330
1497
1306
Sequence Median
Ural Championship 1998
3532
145
1316
Electronic Auction
Ural Championship 2004. Round 1
1172
436
1350
Canteen
Spring School Contest 2005
1331
388
1369
Cockroach Race
Ural Championship 2005. Round 2
32
12393
1414
Astronomical Database
USU Championship 2005
1194
432
1424
Minibus
Timus Top Coders: First Challenge
714
704
1439
Battle with You-Know-Who
Ural Championship 2006
1151
435
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1924
252
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2952
165
1494
Monobilliards
Autumn School Contest 2006
5218
93
1521
War Games 2
Timus Top Coders: Third Challenge
3791
126
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1585
297
1542
Autocompletion
Ural Championship 2007
729
632
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1570
287
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
477
931
1613
For Fans of Statistics
Ural Championship 2008
3089
141
1628
White Streaks
USU Championship 2008
2502
167
1650
Billionaires
NEERC 2008 Eastern Subregional
2261
184
1654
Cipher Message
NEERC 2008 Eastern Subregional
7041
59
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3702
111
1682
Crazy Professor
USU Personal Contest 2009
749
537
1701
Ostap and Partners
Ural Championship 2009
624
638
1707
Hypnotoad's Secret
Ural Championship 2009
203
1899
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
165
2222
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1478
256
1772
Ski-Trails for Robots
Ural Championship 2010
504
728
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
144
2167
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
246
1302
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
710
459
1896
War Games 2.1
237
883
1977
Energy Wall
Ural Championship 2013
106
2451
1987
Nested Segments
Ural FU Championship 2013
1682
165
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
461
541
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
57
3767
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
801
284
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2778
2096
All Inclusive
Ural FU Personal Contest 2014
66
2807
2114
My craft
University academic school olympiad in informatics 2019
145
980
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
176
806
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
101
1350
2162
Graphmania
Ural School Programming Contest 2021
47
1131
2170
Experiment with Juice 2
Ural School Programming Contest 2022
28
1697
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
7
2133
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
12
1651
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