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Solved problems:
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ID
Title
Source
Authors
Difficulty
1003
Parity
Central European Olympiad in Informatics 1999
4067
386
1019
Line Painting
USU Local Contest. 1999
3365
464
1028
Stars
Ural Championship 1999
5896
264
1037
Memory Management
USU Championship 2000
1301
1179
1067
Disk Tree
NEERC 2000
3952
364
1090
In the Army Now
USU Local Contest. March 2001
3563
366
1097
Square Country 2
USU Local Contest. March 2001
948
1363
1100
Final Standings
Tetrahedron Team Online Contest May 2001
11334
44
1126
Magnetic Storms
USU Championship 2001
5466
92
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
676
737
1220
Stacks
USU Championship 2002
1824
279
1251
Cemetery Manager
USU Local Contest. March 2003
334
1494
1306
Sequence Median
Ural Championship 1998
3566
145
1316
Electronic Auction
Ural Championship 2004. Round 1
1180
437
1350
Canteen
Spring School Contest 2005
1336
390
1369
Cockroach Race
Ural Championship 2005. Round 2
33
12215
1414
Astronomical Database
USU Championship 2005
1210
430
1424
Minibus
Timus Top Coders: First Challenge
718
707
1439
Battle with You-Know-Who
Ural Championship 2006
1179
429
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1938
253
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2983
165
1494
Monobilliards
Autumn School Contest 2006
5244
93
1521
War Games 2
Timus Top Coders: Third Challenge
3819
127
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1600
297
1542
Autocompletion
Ural Championship 2007
740
630
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1600
285
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
481
934
1613
For Fans of Statistics
Ural Championship 2008
3107
142
1628
White Streaks
USU Championship 2008
2511
169
1650
Billionaires
NEERC 2008 Eastern Subregional
2276
185
1654
Cipher Message
NEERC 2008 Eastern Subregional
7081
60
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3823
109
1682
Crazy Professor
USU Personal Contest 2009
757
539
1701
Ostap and Partners
Ural Championship 2009
627
644
1707
Hypnotoad's Secret
Ural Championship 2009
205
1908
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
168
2218
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1491
257
1772
Ski-Trails for Robots
Ural Championship 2010
507
736
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
147
2167
1846
GCD 2010
Petrozavodsk Summer 2010. USU Contest
2204
154
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
250
1307
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
721
461
1896
War Games 2.1
249
872
1977
Energy Wall
Ural Championship 2013
109
2449
1987
Nested Segments
Ural FU Championship 2013
1706
167
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
472
544
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
60
3712
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
811
290
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
72
2804
2096
All Inclusive
Ural FU Personal Contest 2014
69
2799
2114
My craft
University academic school olympiad in informatics 2019
148
1015
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
185
812
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
105
1376
2162
Graphmania
Ural School Programming Contest 2021
54
1152
2170
Experiment with Juice 2
Ural School Programming Contest 2022
38
1536
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
11
2180
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
24
1348
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