Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 2)
5 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

shortest paths

Add tag

Problems

#	Name
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1613
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x3814
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x455
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x127
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1313
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1430
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16565
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x24692
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x4304
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x5043
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2203
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x2003
1320E	Treeland and Viruses data structures, dfs and similar, dp, shortest paths, trees	3000	x800
1320B	Navigation System dfs and similar, graphs, shortest paths	1700	x5959
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x486
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6221
1304E	1-Trees and Queries data structures, dfs and similar, shortest paths, trees	2000	x5116
1301F	Super Jaber dfs and similar, graphs, implementation, shortest paths	2600	x1228
1283D	Christmas Trees graphs, greedy, shortest paths	1800	x7674
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	1900	x6110
1253F	Cheap Robot binary search, dsu, graphs, shortest paths, trees	2500	x1596
1250I	Show Must Go On binary search, brute force, greedy, shortest paths	3100	x130
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9480
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1249
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x7201
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1450
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x92
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x1114
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6515
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6600
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x4530
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x143
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x127
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1614
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2481
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x913
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x171
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x571
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x4717
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10690
1163F	Indecisive Taxi Fee data structures, graphs, shortest paths	3000	x831
1140G	Double Tree data structures, divide and conquer, shortest paths, trees	2700	x471
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14185
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4012
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x3937
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x4988
1070A	Find a Number dp, graphs, number theory, shortest paths	2200	x2275
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2618
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1282
1063B	Labyrinth graphs, shortest paths	1800	x7194
1051F	The Shortest Statement graphs, shortest paths, trees	2400	x2736
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2217
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x14154
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1632
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1019
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x570
986A	Fair graphs, greedy, number theory, shortest paths	1600	x6676
983C	Elevator dp, graphs, shortest paths	2400	x803
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x6362
938D	Buy a Ticket data structures, graphs, shortest paths	2000	x5313
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x185
919F	A Game With Numbers games, graphs, shortest paths	2600	x327
916C	Jamie and Interesting Graph constructive algorithms, graphs, shortest paths	1600	x5030
913E	Logical Expression bitmasks, dp, shortest paths	2400	x761
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1969
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x4046
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x966
843D	Dynamic Shortest Path graphs, shortest paths	3400	x768
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x388
821D	Okabe and City dfs and similar, graphs, shortest paths	2200	x1364
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x643
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5374
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1586
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4384
788C	The Great Mixing dfs and similar, graphs, shortest paths	2300	x2069
786B	Legacy data structures, graphs, shortest paths	2300	x5558
780D	Innokenty and a Football League 2-sat, graphs, greedy, implementation, shortest paths, strings	1900	x2850
773D	Perishable Roads dp, graphs, shortest paths	2700	x581
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2167
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x525
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1116
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x826
715B	Complete The Graph binary search, constructive algorithms, graphs, shortest paths	2300	x2686
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x5649
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1541
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1850
666B	World Tour graphs, shortest paths	2000	x2112
648E	Собери число graphs, shortest paths	2300	x98
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1331
601A	The Two Routes graphs, shortest paths	1600	x11602
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10708
590C	Three States dfs and similar, graphs, shortest paths	2200	x2702
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3498
575G	Run for beer dfs and similar, shortest paths	2200	x868
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1673
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3948
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4483
543B	Destroying Roads constructive algorithms, graphs, shortest paths	2100	x3914
542E	Playing on Graph graphs, shortest paths	2600	x810
525D	Arthur and Walls constructive algorithms, data structures, graphs, greedy, shortest paths	2400	x1655