Problemset - Codeforces

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Educational Codeforces Round 97 (Rated for Div. 2)
46:27:27
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shortest paths

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Problems

#	Name
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x50789
3A	Shortest path of the king greedy, shortest paths	1000	x11492
370A	Rook, Bishop and King graphs, math, shortest paths	1100	x5302
1360E	Polygon dp, graphs, implementation, shortest paths	1300	x14965
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x23717
198B	Jumping on Walls shortest paths	1400	x2537
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x8356
1106D	Lunar New Year and a Wander data structures, dfs and similar, graphs, greedy, shortest paths	1500	x8315
329B	Biridian Forest dfs and similar, shortest paths	1500	x4019
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x3323
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x2317
601A	The Two Routes graphs, shortest paths	1600	x7563
986A	Fair graphs, greedy, number theory, shortest paths	1600	x4465
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x4065
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x3893
916C	Jamie and Interesting Graph constructive algorithms, graphs, shortest paths	1600	x3719
793B	Igor and his way to work dfs and similar, graphs, implementation, shortest paths	1600	x3094
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x1768
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x8881
1037D	Valid BFS? dfs and similar, graphs, shortest paths, trees	1700	x7539
295B	Greg and Graph dp, graphs, shortest paths	1700	x6484
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x6021
339C	Xenia and Weights constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	1700	x5987
1249E	By Elevator or Stairs? dp, shortest paths	1700	x5459
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x5278
1204C	Anna, Svyatoslav and Maps dp, graphs, greedy, shortest paths	1700	x4973
1320B	Navigation System dfs and similar, graphs, shortest paths	1700	x4313
1202B	You Are Given a Decimal String... brute force, dp, shortest paths	1700	x3365
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x2911
229B	Planets binary search, data structures, graphs, shortest paths	1700	x2872
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x1302
1283D	Christmas Trees graphs, greedy, shortest paths	1800	x4604
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x4186
1063B	Labyrinth graphs, shortest paths	1800	x4137
61D	Eternal Victory dfs and similar, graphs, greedy, shortest paths, trees	1800	x3407
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x3007
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x2497
33B	String Problem shortest paths	1800	x1943
1067B	Multihedgehog dfs and similar, graphs, shortest paths	1800	x1813
173B	Chamber of Secrets dfs and similar, shortest paths	1800	x1498
187B	AlgoRace dp, shortest paths	1800	x1283
20C	Dijkstra? graphs, shortest paths	1900	x12709
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x4425
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x4019
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x3688
1272E	Nearest Opposite Parity dfs and similar, graphs, shortest paths	1900	x3276
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3248
25C	Roads in Berland graphs, shortest paths	1900	x3199
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x3070
1105D	Kilani and the Game dfs and similar, graphs, implementation, shortest paths	1900	x2958
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x2642
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x2611
780D	Innokenty and a Football League 2-sat, graphs, greedy, implementation, shortest paths, strings	1900	x2464
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x2393
95C	Volleyball shortest paths	1900	x1826
208C	Police Station dp, graphs, shortest paths	1900	x1306
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x4056
1349C	Orac and Game of Life dfs and similar, graphs, implementation, shortest paths	2000	x3117
1304E	1-Trees and Queries data structures, dfs and similar, shortest paths, trees	2000	x3062
1183E	Subsequences (easy version) dp, graphs, implementation, shortest paths	2000	x2965
938D	Buy a Ticket data structures, graphs, shortest paths	2000	x2856
545E	Paths and Trees graphs, greedy, shortest paths	2000	x2732
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2082
676D	Theseus and labyrinth graphs, implementation, shortest paths	2000	x1531
666B	World Tour graphs, shortest paths	2000	x1526
59E	Shortest Path graphs, shortest paths	2000	x1263
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x932
33D	Knights geometry, graphs, shortest paths, sortings	2000	x799
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x3428
543B	Destroying Roads constructive algorithms, graphs, shortest paths	2100	x2792
1393D	Rarity and New Dress dfs and similar, dp, implementation, shortest paths	2100	x2768
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x2570
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x2428
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x1942
1433G	Reducing Delivery Cost brute force, graphs, shortest paths	2100	x1813
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x1728
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1398
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1307
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1099
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x884
1184E2	Daleks' Invasion (medium) dfs and similar, graphs, shortest paths, trees	2100	x623
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x563
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x270
590C	Three States dfs and similar, graphs, shortest paths	2200	x1828
1070A	Find a Number dp, graphs, number theory, shortest paths	2200	x1538
1196F	K-th Path brute force, constructive algorithms, shortest paths, sortings	2200	x1452
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1102
1227E	Arson In Berland Forest binary search, graphs, shortest paths	2200	x1053
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x961
821D	Okabe and City dfs and similar, graphs, shortest paths	2200	x906
369D	Valera and Fools dfs and similar, dp, graphs, shortest paths	2200	x844
575G	Run for beer dfs and similar, shortest paths	2200	x619
1184B2	The Doctor Meets Vader (Medium) flows, graph matchings, graphs, shortest paths, sortings	2200	x413
182A	Battlefield geometry, graphs, implementation, shortest paths	2200	x229
786B	Legacy data structures, graphs, shortest paths	2300	x2037
715B	Complete The Graph binary search, constructive algorithms, graphs, shortest paths	2300	x1721
1422D	Returning Home graphs, shortest paths, sortings	2300	x1535
788C	The Great Mixing dfs and similar, graphs, shortest paths	2300	x1534
677D	Vanya and Treasure data structures, dp, graphs, shortest paths	2300	x1128
1197E	Culture Code binary search, combinatorics, data structures, dp, shortest paths, sortings	2300	x989

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