Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
2 days
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shortest paths

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Problems

#	Name
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x18423
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1607
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x3776
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x444
1387C	Viruses *special problem, dp, shortest paths, string suffix structures	2900	x126
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1253
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1375
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16276
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x24532
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x4245
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x4881
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2071
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x1858
1320E	Treeland and Viruses data structures, dfs and similar, dp, shortest paths, trees	3000	x672
1320B	Navigation System dfs and similar, graphs, shortest paths	1700	x5817
1307G	Cow and Exercise flows, graphs, shortest paths	3100	x481
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6047
1304E	1-Trees and Queries data structures, dfs and similar, shortest paths, trees	2000	x4941
1301F	Super Jaber dfs and similar, graphs, implementation, shortest paths	2600	x1092
1283D	Christmas Trees graphs, greedy, shortest paths	1800	x7474
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	1900	x5898
1253F	Cheap Robot binary search, dsu, graphs, shortest paths, trees	2500	x1589
1250I	Show Must Go On binary search, brute force, greedy, shortest paths	3100	x128
1249E	By Elevator or Stairs? dp, shortest paths	1700	x9385
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1235
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x7094
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1445
1218G	Alpha planetary system constructive algorithms, graphs, shortest paths	3000	x91
1209F	Koala and Notebook data structures, dfs and similar, graphs, shortest paths, strings, trees	2600	x1107
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6466
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x6585
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x4517
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x141
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x126
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x1605
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x2461
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x905
1184B3	The Doctor Meets Vader (Hard) flows, shortest paths	2700	x169
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x569
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x4673
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10515
1163F	Indecisive Taxi Fee data structures, graphs, shortest paths	3000	x824
1140G	Double Tree data structures, divide and conquer, shortest paths, trees	2700	x466
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x14020
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x4002
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x3905
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x4937
1070A	Find a Number dp, graphs, number theory, shortest paths	2200	x2264
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x2608
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1273
1063B	Labyrinth graphs, shortest paths	1800	x7119
1051F	The Shortest Statement graphs, shortest paths, trees	2400	x2695
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2200
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x13964
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1623
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1013
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x567
986A	Fair graphs, greedy, number theory, shortest paths	1600	x6579
983C	Elevator dp, graphs, shortest paths	2400	x802
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x6327
938D	Buy a Ticket data structures, graphs, shortest paths	2000	x5237
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3400	x183
919F	A Game With Numbers games, graphs, shortest paths	2600	x327
916C	Jamie and Interesting Graph constructive algorithms, graphs, shortest paths	1600	x5003
913E	Logical Expression bitmasks, dp, shortest paths	2400	x745
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1959
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x3966
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x956
843D	Dynamic Shortest Path graphs, shortest paths	3400	x763
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x387
821D	Okabe and City dfs and similar, graphs, shortest paths	2200	x1351
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x641
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5214
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1578
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x4349
788C	The Great Mixing dfs and similar, graphs, shortest paths	2300	x2015
786B	Legacy data structures, graphs, shortest paths	2300	x5494
780D	Innokenty and a Football League 2-sat, graphs, greedy, implementation, shortest paths, strings	1900	x2844
773D	Perishable Roads dp, graphs, shortest paths	2700	x567
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2136
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x516
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1101
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x817
715B	Complete The Graph binary search, constructive algorithms, graphs, shortest paths	2300	x2670
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x5624
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1533
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1833
666B	World Tour graphs, shortest paths	2000	x2075
648E	Собери число graphs, shortest paths	2300	x85
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1323
601A	The Two Routes graphs, shortest paths	1600	x11496
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10581
590C	Three States dfs and similar, graphs, shortest paths	2200	x2684
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3495
575G	Run for beer dfs and similar, shortest paths	2200	x868
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1659
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3939
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4411
543B	Destroying Roads constructive algorithms, graphs, shortest paths	2100	x3847
542E	Playing on Graph graphs, shortest paths	2600	x810