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Problem set. Graph Theory Problems
Solved problems:
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ID
Title
Source
Authors
Difficulty
1004
Sightseeing Trip
Central European Olympiad in Informatics 1999
2645
582
1008
Image Encoding
USTU PhysTech Cup 2000
4242
363
1016
Cube on the Walk
USU Local Contest. 1999
1879
814
1022
Genealogical Tree
Autumn School Contest 2000
10905
141
1033
Labyrinth
Ural Championship 1999
6517
235
1035
Cross-stitch
Ural Championship 1999
1120
1352
1040
Airline Company
USU Championship 2000
1505
1001
1045
Funny Game
USU Local Contest. March 2000
2888
517
1056
Centers of the Net
NEERC 2000 Central Subregional
2721
548
1065
Frontier
NEERC 2000
1005
1395
1069
Prufer Code
USU Personal Contest 2001
2653
517
1072
Routing
USU Personal Contest 2001
2751
498
1076
Trash
1926
707
1077
Travelling Tours
1240
397
1080
Map Coloring
Winter Mathematical Festival Varna 2001
7037
193
1085
Meeting
Spring School Contest 2001
2162
621
1096
Get the Right Route Plate!
USU Local Contest. March 2001
1813
703
1099
Work Scheduling
1005
1143
1106
Two Teams
Tetrahedron Team Online Contest May 2001
6629
74
1109
Conference
Bulgarian Online Contest September 2001
1974
250
1119
Metro
Autumn School Contest 2001
7015
71
1124
Mosaic
USU Championship 2001
1656
298
1128
Partition into Groups
USU Championship 2001
1195
412
1129
Door Painting
USU Championship 2001
1153
426
1136
Parliament
NEERC 2001 Central Subregional
4977
100
1137
Bus Routes
NEERC 2001 Central Subregional
1519
325
1145
Rope in the Labyrinth
DSAP Vietnam Online Contest November 2001
1368
360
1156
Two Rounds
Ural Championship 2001. Round 2
1507
327
1160
Network
NEERC 2001 Northern Subregional
3294
152
1162
Currency Exchange
NEERC 2001 Northern Subregional
2362
209
1176
Hyperchannels
USU Personal Contest 2002
1457
340
1182
Team Them Up!
NEERC 2001
963
512
1198
Jobbery
1048
489
1199
Mouse
129
3406
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2091
237
1208
Legendary Teams Contest
USU Local Contest. March 2002
2332
213
1210
Kind Spirits
Autumn School Contest 2002
3070
163
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1551
322
1227
Rally Championship
NEERC 2002 Central Subregional
1661
301
1237
Evacuation Plan
NEERC 2002
503
982
1242
Werewolf
USU Personal Contest 2003
2828
178
1250
Sea Burial
USU Local Contest. March 2003
684
728
1254
Die Hard
USU Local Contest. March 2003
779
640
1270
Unicube
USU Championship 2003
202
2399
1271
Sailing Directions
USU Championship 2003
100
4624
1272
Non-Yekaterinburg Subway
USU Championship 2003
3417
148
1277
Cops and Thieves
NEERC 2003 Central Subregional
632
793
1280
Topological Sorting
NEERC 2003 Central Subregional
3579
142
1281
River Basin
NEERC 2003 Central Subregional
360
1375
1291
Gear-wheels
Spring School Contest 2004
1321
384
1301
Cube in Labyrinth
Ural Championship 1998
676
745
1314
Chase in Subway
Ural Championship 2004. Round 1
855
591
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
264
1866
1320
Graph Decomposition
Ural Championship 2004. Round 2
1772
287
1323
Classmates
Ural Championship 2004. Round 2
611
824
1325
Dirt
Ural Championship 2004. Round 2
939
539
1329
Galactic History
Autumn School Contest 2004
1103
462
1337
Bureaucracy
Autumn School Contest 2004
319
1563
1338
Automobiles
USU Championship 2004
276
1803
1339
Babies
USU Championship 2004
588
863
1358
Cables
Spring School Contest 2005
943
542
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
254
1957
1367
Top Secret
Ural Championship 2005. Round 2
162
3003
1379
Cups Transportation
Ural Championship 2005. Round 1
818
625
1392
Dreaming of Stars
667
765
1399
Economical Director
34
10758
1400
Cellular Characters
Autumn School Contest 2005
935
548
1416
Confidential
USU Championship 2005
1297
395
1419
Maps of the Island Worlds
USU Championship 2005
414
1218
1421
Credit Operations
Timus Top Coders: First Challenge
920
544
1434
Buses in Vasyuki
USU Personal Contest 2006
507
975
1441
From the History of Gringotts Bank
Ural Championship 2006
430
1139
1447
Portkey Network
Ural Championship 2006
493
996
1449
Credit Operations 2
Timus Top Coders: Second Challenge
326
1484
1450
Russian Pipelines
Timus Top Coders: Second Challenge
3189
156
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
97
4515
1487
Chinese Football
USU Championship 2006
370
1268
1500
Pass Licenses
NEERC 2006 Eastern Subregional
744
636
1505
Oil Transfer
NEERC 2006 Eastern Subregional
153
2943
1527
Bad Roads
Petrozavodsk Winter 2007. D.Gozman Contest
392
1166
1533
Fat Hobbits
USU Personal Contest 2007
456
1004
1544
Classmates 3
Ural Championship 2007
362
1245
1557
Network Attack
Petrozavodsk Summer 2007. NSU Contest
238
1809
1569
Networking the “Iset”
USU Championship 2007
468
936
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
510
859
1580
Dean's Debts
Autumn School Contest 2007
491
892
1610
Cactuses
Ural Championship 2008
206
1998
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
124
3128
1630
Talisman
USU Championship 2008
400
1011
1641
Duties
Autumn School Contest 2008
817
500
1643
Attack of the Dark Fortress
Autumn School Contest 2008
966
423
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1183
346
1652
Banking Crisis
NEERC 2008 Eastern Subregional
141
2732
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
197
1973
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
222
1753
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
114
3236
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
362
1079
1709
Penguin-Avia
Ural Championship 2009
2592
154
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
656
576
1742
Team building
Petrozavodsk Summer 2009. Ufa SATU Contest
1218
306
1770
The Party of Ural Champions
Ural Championship 2010
205
1716
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1741
202
1833
Hopes of Rowing
Ural Championship 2011
154
2066
1837
Isenbaev's Number
Ural Championship 2011
5677
60
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
65
4375
1882
Old Nokia
Ural Regional School Programming Contest 2011
108
2759
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
704
455
1905
Travel in Time
Ural Championship 2012
256
1125
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
229
1250
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1788
166
1934
Black Spot
Ural FU Championship 2012
847
347
1966
Cycling Roads
Ural FU Personal Contest 2013
408
673
1980
Road to Investor
Ural Championship 2013
433
628
1982
Electrification Plan
Ural FU Championship 2013
2054
132
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
258
928
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
178
1322
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
488
497
2034
Caravans
Ural Regional School Programming Contest 2014
842
291
2038
Minimum Vertex Cover
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
93
2391
2055
Urban Geography
Ural Championship 2015
150
1469
2093
All Roads Lead to Snowdrift
Ural FU Personal Contest 2014
148
1309
2113
Survive the flood
University academic school olympiad in informatics 2019
348
405
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team Contest
28
3760
2128
Rubina's Solitaire
Later is better than never
134
961
2132
Graph Decomposition. Version 2
Later is better than never
84
1472
2140
BitMazeCraft
Ural School Programming Contest 2019
110
1112
2147
City Building
Ural School Programming Contest 2019
62
1853
2155
Quadrocopter
Ural School Programming Contest 2020
99
980
2159
Essay
Ural School Programming Contest 2021
32
1354
2169
City Building 2
Ural School Programming Contest 2022
18
2028
2174
Dualism of Numbers
Ural School Programming Contest 2023
6
1772
2180
Need More Tasks
Ural School Programming Contest 2023
4
2023
2187
Need More Gold
Ural School Programming Contest 2024
4
2022
2192
My Grandfather
ICPC Ural Regional Contest Qualifier 2022
5
1891
2195
Binary Trees
ICPC Ural Regional Contest Qualifier 2023
3
2182
2198
Deep Understanding
ICPC Ural Regional Contest Qualifier 2024
2
2356
Solved problems:
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