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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
2630
580
1008
Image Encoding
USTU PhysTech Cup 2000
4232
360
1016
Cube on the Walk
USU Local Contest. 1999
1871
809
1022
Genealogical Tree
Autumn School Contest 2000
10856
140
1033
Labyrinth
Ural Championship 1999
6496
233
1035
Cross-stitch
Ural Championship 1999
1120
1339
1040
Airline Company
USU Championship 2000
1499
996
1045
Funny Game
USU Local Contest. March 2000
2873
515
1056
Centers of the Net
NEERC 2000 Central Subregional
2706
545
1065
Frontier
NEERC 2000
997
1393
1069
Prufer Code
USU Personal Contest 2001
2635
515
1072
Routing
USU Personal Contest 2001
2745
495
1076
Trash
1914
705
1077
Travelling Tours
1232
395
1080
Map Coloring
Winter Mathematical Festival Varna 2001
7005
192
1085
Meeting
Spring School Contest 2001
2155
617
1096
Get the Right Route Plate!
USU Local Contest. March 2001
1804
700
1099
Work Scheduling
999
1139
1106
Two Teams
Tetrahedron Team Online Contest May 2001
6566
74
1109
Conference
Bulgarian Online Contest September 2001
1960
249
1119
Metro
Autumn School Contest 2001
6950
71
1124
Mosaic
USU Championship 2001
1643
297
1128
Partition into Groups
USU Championship 2001
1191
409
1129
Door Painting
USU Championship 2001
1140
427
1136
Parliament
NEERC 2001 Central Subregional
4950
99
1137
Bus Routes
NEERC 2001 Central Subregional
1508
324
1145
Rope in the Labyrinth
DSAP Vietnam Online Contest November 2001
1354
361
1156
Two Rounds
Ural Championship 2001. Round 2
1497
327
1160
Network
NEERC 2001 Northern Subregional
3264
152
1162
Currency Exchange
NEERC 2001 Northern Subregional
2343
209
1176
Hyperchannels
USU Personal Contest 2002
1448
338
1182
Team Them Up!
NEERC 2001
956
511
1198
Jobbery
1041
488
1199
Mouse
128
3396
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2072
237
1208
Legendary Teams Contest
USU Local Contest. March 2002
2319
212
1210
Kind Spirits
Autumn School Contest 2002
3052
163
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1542
321
1227
Rally Championship
NEERC 2002 Central Subregional
1653
300
1237
Evacuation Plan
NEERC 2002
500
979
1242
Werewolf
USU Personal Contest 2003
2795
178
1250
Sea Burial
USU Local Contest. March 2003
680
725
1254
Die Hard
USU Local Contest. March 2003
773
639
1270
Unicube
USU Championship 2003
202
2378
1271
Sailing Directions
USU Championship 2003
97
4712
1272
Non-Yekaterinburg Subway
USU Championship 2003
3391
148
1277
Cops and Thieves
NEERC 2003 Central Subregional
628
791
1280
Topological Sorting
NEERC 2003 Central Subregional
3551
142
1281
River Basin
NEERC 2003 Central Subregional
350
1401
1291
Gear-wheels
Spring School Contest 2004
1309
384
1301
Cube in Labyrinth
Ural Championship 1998
673
742
1314
Chase in Subway
Ural Championship 2004. Round 1
848
591
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
256
1906
1320
Graph Decomposition
Ural Championship 2004. Round 2
1756
287
1323
Classmates
Ural Championship 2004. Round 2
604
826
1325
Dirt
Ural Championship 2004. Round 2
930
539
1329
Galactic History
Autumn School Contest 2004
1094
462
1337
Bureaucracy
Autumn School Contest 2004
316
1563
1338
Automobiles
USU Championship 2004
275
1794
1339
Babies
USU Championship 2004
583
862
1358
Cables
Spring School Contest 2005
932
543
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
254
1940
1367
Top Secret
Ural Championship 2005. Round 2
158
3048
1379
Cups Transportation
Ural Championship 2005. Round 1
807
628
1392
Dreaming of Stars
664
762
1399
Economical Director
34
10648
1400
Cellular Characters
Autumn School Contest 2005
928
547
1416
Confidential
USU Championship 2005
1283
396
1419
Maps of the Island Worlds
USU Championship 2005
409
1222
1421
Credit Operations
Timus Top Coders: First Challenge
912
543
1434
Buses in Vasyuki
USU Personal Contest 2006
502
976
1441
From the History of Gringotts Bank
Ural Championship 2006
424
1144
1447
Portkey Network
Ural Championship 2006
488
997
1449
Credit Operations 2
Timus Top Coders: Second Challenge
323
1483
1450
Russian Pipelines
Timus Top Coders: Second Challenge
3154
156
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
97
4470
1487
Chinese Football
USU Championship 2006
366
1269
1500
Pass Licenses
NEERC 2006 Eastern Subregional
740
633
1505
Oil Transfer
NEERC 2006 Eastern Subregional
153
2914
1527
Bad Roads
Petrozavodsk Winter 2007. D.Gozman Contest
388
1166
1533
Fat Hobbits
USU Personal Contest 2007
441
1026
1544
Classmates 3
Ural Championship 2007
359
1241
1557
Network Attack
Petrozavodsk Summer 2007. NSU Contest
236
1803
1569
Networking the “Iset”
USU Championship 2007
459
943
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
500
866
1580
Dean's Debts
Autumn School Contest 2007
489
885
1610
Cactuses
Ural Championship 2008
206
1974
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
121
3159
1630
Talisman
USU Championship 2008
396
1007
1641
Duties
Autumn School Contest 2008
810
497
1643
Attack of the Dark Fortress
Autumn School Contest 2008
955
423
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1174
344
1652
Banking Crisis
NEERC 2008 Eastern Subregional
139
2733
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
195
1966
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
220
1744
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
114
3192
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
356
1081
1709
Penguin-Avia
Ural Championship 2009
2562
153
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
652
571
1742
Team building
Petrozavodsk Summer 2009. Ufa SATU Contest
1208
303
1770
The Party of Ural Champions
Ural Championship 2010
203
1705
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1720
201
1833
Hopes of Rowing
Ural Championship 2011
151
2067
1837
Isenbaev's Number
Ural Championship 2011
5616
59
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
63
4411
1882
Old Nokia
Ural Regional School Programming Contest 2011
107
2730
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
700
449
1905
Travel in Time
Ural Championship 2012
253
1114
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
228
1229
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1746
166
1934
Black Spot
Ural FU Championship 2012
842
341
1966
Cycling Roads
Ural FU Personal Contest 2013
401
669
1980
Road to Investor
Ural Championship 2013
425
625
1982
Electrification Plan
Ural FU Championship 2013
2011
132
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
251
926
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
175
1307
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
480
491
2034
Caravans
Ural Regional School Programming Contest 2014
823
289
2038
Minimum Vertex Cover
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
84
2546
2055
Urban Geography
Ural Championship 2015
145
1471
2093
All Roads Lead to Snowdrift
Ural FU Personal Contest 2014
143
1305
2113
Survive the flood
University academic school olympiad in informatics 2019
341
391
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team Contest
26
3750
2128
Rubina's Solitaire
Later is better than never
131
925
2132
Graph Decomposition. Version 2
Later is better than never
73
1571
2140
BitMazeCraft
Ural School Programming Contest 2019
103
1110
2147
City Building
Ural School Programming Contest 2019
59
1818
2155
Quadrocopter
Ural School Programming Contest 2020
96
931
2159
Essay
Ural School Programming Contest 2021
24
1418
2169
City Building 2
Ural School Programming Contest 2022
13
2092
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