Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:38:33
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shortest paths

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Problems

#	Name
1422D	Returning Home graphs, shortest paths, sortings	2300	x2772
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4151
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x19738
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1686
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x3995
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x486
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x129
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1470
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1589
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x17186
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x25233
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x4519
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x5160
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2239
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x2055
1320E	Treeland and Viruses data structures, dfs and similar, dp, shortest paths, trees	3000	x812
1320B	Navigation System dfs and similar, graphs, shortest paths	1700	x6039
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x500
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6354
1304E	1-Trees and Queries data structures, dfs and similar, shortest paths, trees	2000	x5221
1301F	Super Jaber dfs and similar, graphs, implementation, shortest paths	2600	x1276
1283D	Christmas Trees graphs, greedy, shortest paths	1800	x7769
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	1900	x6294
1253F	Cheap Robot binary search, dsu, graphs, shortest paths, trees	2500	x1770
1250I	Show Must Go On binary search, brute force, greedy, shortest paths	3100	x132
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9651
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1266
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x7516
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1483
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x99
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x1140
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6642
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6670
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x4557
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x145
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x130
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1643
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2623
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x942
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x173
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x572
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x4807
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10992
1163F	Indecisive Taxi Fee data structures, graphs, shortest paths	3000	x873
1140G	Double Tree data structures, divide and conquer, shortest paths, trees	2700	x493
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14630
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4079
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4036
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x5153
1070A	Find a Number dp, graphs, number theory, shortest paths	2200	x2332
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2657
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1302
1063B	Labyrinth graphs, shortest paths	1800	x7387
1051F	The Shortest Statement graphs, shortest paths, trees	2400	x2855
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2348
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x14670
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1681
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1053
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x608
986A	Fair graphs, greedy, number theory, shortest paths	1600	x6856
983C	Elevator dp, graphs, shortest paths	2400	x826
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x6578
938D	Buy a Ticket data structures, graphs, shortest paths	2000	x5616
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x188
919F	A Game With Numbers games, graphs, shortest paths	2600	x335
916C	Jamie and Interesting Graph constructive algorithms, graphs, shortest paths	1600	x5085
913E	Logical Expression bitmasks, dp, shortest paths	2400	x770
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x2005
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x4314
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x986
843D	Dynamic Shortest Path graphs, shortest paths	3400	x833
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x400
821D	Okabe and City dfs and similar, graphs, shortest paths	2200	x1394
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x651
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5626
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1591
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4425
788C	The Great Mixing dfs and similar, graphs, shortest paths	2300	x2243
786B	Legacy data structures, graphs, shortest paths	2300	x5999
780D	Innokenty and a Football League 2-sat, graphs, greedy, implementation, shortest paths, strings	1900	x2894
773D	Perishable Roads dp, graphs, shortest paths	2700	x654
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2254
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x551
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1153
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x841
715B	Complete The Graph binary search, constructive algorithms, graphs, shortest paths	2300	x2768
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x5685
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1577
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1858
666B	World Tour graphs, shortest paths	2000	x2159
648E	Собери число graphs, shortest paths	2300	x127
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1378
601A	The Two Routes graphs, shortest paths	1600	x11864
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10944
590C	Three States dfs and similar, graphs, shortest paths	2200	x2758
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3519
575G	Run for beer dfs and similar, shortest paths	2200	x883
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1734
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3977
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4606