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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
2572
567
1008
Image Encoding
USTU PhysTech Cup 2000
4131
353
1016
Cube on the Walk
USU Local Contest. 1999
1835
789
1022
Genealogical Tree
Autumn School Contest 2000
10579
137
1033
Labyrinth
Ural Championship 1999
6314
229
1035
Cross-stitch
Ural Championship 1999
1082
1325
1040
Airline Company
USU Championship 2000
1459
978
1045
Funny Game
USU Local Contest. March 2000
2761
513
1056
Centers of the Net
NEERC 2000 Central Subregional
2626
537
1065
Frontier
NEERC 2000
977
1359
1069
Prufer Code
USU Personal Contest 2001
2513
517
1072
Routing
USU Personal Contest 2001
2699
481
1076
Trash
1882
685
1077
Travelling Tours
1175
397
1080
Map Coloring
Winter Mathematical Festival Varna 2001
5977
215
1085
Meeting
Spring School Contest 2001
2098
607
1096
Get the Right Route Plate!
USU Local Contest. March 2001
1756
688
1099
Work Scheduling
955
1139
1106
Two Teams
Tetrahedron Team Online Contest May 2001
6242
75
1109
Conference
Bulgarian Online Contest September 2001
1902
246
1119
Metro
Autumn School Contest 2001
6512
72
1124
Mosaic
USU Championship 2001
1574
297
1128
Partition into Groups
USU Championship 2001
1129
413
1129
Door Painting
USU Championship 2001
1063
438
1136
Parliament
NEERC 2001 Central Subregional
4729
99
1137
Bus Routes
NEERC 2001 Central Subregional
1390
336
1145
Rope in the Labyrinth
DSAP Vietnam Online Contest November 2001
1238
377
1156
Two Rounds
Ural Championship 2001. Round 2
1431
327
1160
Network
NEERC 2001 Northern Subregional
2416
197
1162
Currency Exchange
NEERC 2001 Northern Subregional
1639
286
1176
Hyperchannels
USU Personal Contest 2002
1329
353
1182
Team Them Up!
NEERC 2001
914
512
1198
Jobbery
962
507
1199
Mouse
117
3518
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2009
234
1208
Legendary Teams Contest
USU Local Contest. March 2002
2228
211
1210
Kind Spirits
Autumn School Contest 2002
2943
162
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1476
321
1227
Rally Championship
NEERC 2002 Central Subregional
1561
304
1237
Evacuation Plan
NEERC 2002
489
959
1242
Werewolf
USU Personal Contest 2003
2628
182
1250
Sea Burial
USU Local Contest. March 2003
663
713
1254
Die Hard
USU Local Contest. March 2003
741
639
1270
Unicube
USU Championship 2003
193
2383
1271
Sailing Directions
USU Championship 2003
94
4652
1272
Non-Yekaterinburg Subway
USU Championship 2003
3216
150
1277
Cops and Thieves
NEERC 2003 Central Subregional
609
782
1280
Topological Sorting
NEERC 2003 Central Subregional
3390
142
1281
River Basin
NEERC 2003 Central Subregional
338
1391
1291
Gear-wheels
Spring School Contest 2004
1225
394
1301
Cube in Labyrinth
Ural Championship 1998
647
740
1314
Chase in Subway
Ural Championship 2004. Round 1
793
606
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
246
1901
1320
Graph Decomposition
Ural Championship 2004. Round 2
1651
293
1323
Classmates
Ural Championship 2004. Round 2
591
810
1325
Dirt
Ural Championship 2004. Round 2
875
550
1329
Galactic History
Autumn School Contest 2004
1045
464
1337
Bureaucracy
Autumn School Contest 2004
311
1525
1338
Automobiles
USU Championship 2004
269
1761
1339
Babies
USU Championship 2004
540
893
1358
Cables
Spring School Contest 2005
888
547
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
229
2059
1367
Top Secret
Ural Championship 2005. Round 2
152
3037
1379
Cups Transportation
Ural Championship 2005. Round 1
734
663
1392
Dreaming of Stars
641
758
1399
Economical Director
32
10635
1400
Cellular Characters
Autumn School Contest 2005
894
546
1416
Confidential
USU Championship 2005
1202
406
1419
Maps of the Island Worlds
USU Championship 2005
394
1218
1421
Credit Operations
Timus Top Coders: First Challenge
880
540
1434
Buses in Vasyuki
USU Personal Contest 2006
465
1008
1441
From the History of Gringotts Bank
Ural Championship 2006
407
1141
1447
Portkey Network
Ural Championship 2006
461
1010
1449
Credit Operations 2
Timus Top Coders: Second Challenge
313
1465
1450
Russian Pipelines
Timus Top Coders: Second Challenge
2346
201
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
89
4615
1487
Chinese Football
USU Championship 2006
352
1258
1500
Pass Licenses
NEERC 2006 Eastern Subregional
705
634
1505
Oil Transfer
NEERC 2006 Eastern Subregional
150
2833
1527
Bad Roads
Petrozavodsk Winter 2007. D.Gozman Contest
372
1157
1533
Fat Hobbits
USU Personal Contest 2007
410
1049
1544
Classmates 3
Ural Championship 2007
351
1207
1557
Network Attack
Petrozavodsk Summer 2007. NSU Contest
230
1753
1569
Networking the “Iset”
USU Championship 2007
419
978
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
447
916
1580
Dean's Debts
Autumn School Contest 2007
462
887
1610
Cactuses
Ural Championship 2008
201
1909
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
108
3303
1630
Talisman
USU Championship 2008
382
981
1641
Duties
Autumn School Contest 2008
775
488
1643
Attack of the Dark Fortress
Autumn School Contest 2008
899
422
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1097
346
1652
Banking Crisis
NEERC 2008 Eastern Subregional
137
2604
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
192
1873
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
213
1688
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
106
3197
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
346
1042
1709
Penguin-Avia
Ural Championship 2009
2407
153
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
628
553
1742
Team building
Petrozavodsk Summer 2009. Ufa SATU Contest
1141
298
1770
The Party of Ural Champions
Ural Championship 2010
193
1660
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
999
317
1833
Hopes of Rowing
Ural Championship 2011
132
2150
1837
Isenbaev's Number
Ural Championship 2011
5267
58
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
54
4595
1882
Old Nokia
Ural Regional School Programming Contest 2011
102
2602
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
655
437
1905
Travel in Time
Ural Championship 2012
243
1043
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
217
1160
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1555
168
1934
Black Spot
Ural FU Championship 2012
792
326
1966
Cycling Roads
Ural FU Personal Contest 2013
368
648
1980
Road to Investor
Ural Championship 2013
393
600
1982
Electrification Plan
Ural FU Championship 2013
1833
128
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
239
845
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
162
1224
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
439
467
2034
Caravans
Ural Regional School Programming Contest 2014
730
283
2038
Minimum Vertex Cover
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
79
2337
2055
Urban Geography
Ural Championship 2015
134
1363
2093
All Roads Lead to Snowdrift
Ural FU Personal Contest 2014
123
1253
2113
Survive the flood
University academic school olympiad in informatics 2019
273
359
2127
Determinant of a Graph
Petrozavodsk Summer 2018. t.me/umnik_team Contest
18
3550
2128
Rubina's Solitaire
Later is better than never
98
876
2132
Graph Decomposition. Version 2
Later is better than never
52
1527
2140
BitMazeCraft
Ural School Programming Contest 2019
86
932
2147
City Building
Ural School Programming Contest 2019
45
1627
2155
Quadrocopter
Ural School Programming Contest 2020
59
892
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