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Solved problems:
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ID
Title
Source
Authors
Difficulty
1003
Parity
Central European Olympiad in Informatics 1999
4020
386
1019
Line Painting
USU Local Contest. 1999
3348
461
1028
Stars
Ural Championship 1999
5815
264
1037
Memory Management
USU Championship 2000
1291
1173
1067
Disk Tree
NEERC 2000
3922
362
1090
In the Army Now
USU Local Contest. March 2001
3540
363
1097
Square Country 2
USU Local Contest. March 2001
940
1357
1100
Final Standings
Tetrahedron Team Online Contest May 2001
11237
44
1126
Magnetic Storms
USU Championship 2001
5421
92
1147
Shaping Regions
DSAP Vietnam Online Contest November 2001
665
740
1220
Stacks
USU Championship 2002
1816
277
1251
Cemetery Manager
USU Local Contest. March 2003
329
1498
1306
Sequence Median
Ural Championship 1998
3531
145
1316
Electronic Auction
Ural Championship 2004. Round 1
1170
436
1350
Canteen
Spring School Contest 2005
1306
394
1369
Cockroach Race
Ural Championship 2005. Round 2
31
12664
1414
Astronomical Database
USU Championship 2005
1192
432
1424
Minibus
Timus Top Coders: First Challenge
713
703
1439
Battle with You-Know-Who
Ural Championship 2006
1145
436
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1924
251
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2949
164
1494
Monobilliards
Autumn School Contest 2006
5202
93
1521
War Games 2
Timus Top Coders: Third Challenge
3772
126
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1584
296
1542
Autocompletion
Ural Championship 2007
726
633
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1567
286
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
476
930
1613
For Fans of Statistics
Ural Championship 2008
3085
140
1628
White Streaks
USU Championship 2008
2490
167
1650
Billionaires
NEERC 2008 Eastern Subregional
2247
184
1654
Cipher Message
NEERC 2008 Eastern Subregional
7029
59
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3661
112
1682
Crazy Professor
USU Personal Contest 2009
747
536
1701
Ostap and Partners
Ural Championship 2009
623
636
1707
Hypnotoad's Secret
Ural Championship 2009
202
1900
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
165
2213
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1478
255
1772
Ski-Trails for Robots
Ural Championship 2010
503
726
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
144
2155
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
245
1300
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
709
457
1896
War Games 2.1
231
896
1977
Energy Wall
Ural Championship 2013
106
2435
1987
Nested Segments
Ural FU Championship 2013
1682
164
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
460
538
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
57
3738
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
798
283
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2753
2096
All Inclusive
Ural FU Personal Contest 2014
64
2855
2114
My craft
University academic school olympiad in informatics 2019
144
972
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
176
794
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
101
1330
2162
Graphmania
Ural School Programming Contest 2021
44
1149
2170
Experiment with Juice 2
Ural School Programming Contest 2022
27
1677
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
6
2108
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
10
1689
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