Problemset - Codeforces

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Codeforces Round #674 (Div. 3)
11:03:32
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dsu

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Problems

#	Name
1249B1	Books Exchange (easy version) dsu, math	1000	x13271
501B	Misha and Changing Handles data structures, dsu, strings	1100	x9317
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x12038
902B	Coloring a Tree dfs and similar, dsu, greedy	1200	x6969
959B	Mahmoud and Ehab and the message dsu, greedy, implementation	1200	x6397
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x10157
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x6635
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x6023
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x4582
1055B	Alice and Hairdresser dsu, implementation	1300	x3517
277A	Learning Languages dfs and similar, dsu	1400	x10630
1292A	NEKO's Maze Game data structures, dsu, implementation	1400	x9668
1167C	News Distribution dfs and similar, dsu, graphs	1400	x8506
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x7178
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x7059
1130C	Connect brute force, dfs and similar, dsu	1400	x5709
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x4421
60B	Serial Time! dfs and similar, dsu	1400	x2931
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x10442
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x8901
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x8518
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x7298
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x7273
356A	Knight Tournament data structures, dsu	1500	x7227
103B	Cthulhu dfs and similar, dsu, graphs	1500	x5464
409H	A + B Strikes Back *special problem, brute force, constructive algorithms, dsu, implementation	1500	x5208
490B	Queue dsu, implementation	1500	x4615
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x4323
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x2284
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x1526
177C1	Party dfs and similar, dsu, graphs	1500	x1470
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x6934
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x6654
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x5255
722C	Destroying Array data structures, dsu	1600	x5178
723D	Lakes in Berland dfs and similar, dsu, graphs, greedy, implementation	1600	x5079
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x4813
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x4602
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x3965
28B	pSort dfs and similar, dsu, graphs	1600	x2319
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x8701
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x7141
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x5514
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x5168
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x5078
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x4140
1131F	Asya And Kittens constructive algorithms, dsu	1700	x4110
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x2947
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x2566
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2132
371D	Vessels data structures, dsu, implementation, trees	1800	x3315
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x3265
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x2475
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2154
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2088
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x627
547B	Mike and Feet binary search, data structures, dp, dsu	1900	x4862
25D	Roads not only in Berland dsu, graphs, trees	1900	x4502
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x3969
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x3651
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x3045
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x2999
1095F	Make It Connected dsu, graphs, greedy	1900	x2878
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x2646
437D	The Child and Zoo dsu, sortings	1900	x2356
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	1900	x2166
109C	Lucky Tree dp, dsu, trees	1900	x1933
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x1908
566D	Restructuring Company data structures, dsu	1900	x1713
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x1712
982D	Shark brute force, data structures, dsu, trees	1900	x1682
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x1629
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x1549
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x5843
1344B	Monopole Magnets constructive algorithms, dfs and similar, dsu, graphs	2000	x4464
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x2885
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x2827
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x2769
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x2229
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x2175
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2058
1209G1	Into Blocks (easy version) data structures, dsu, greedy, implementation, two pointers	2000	x1908
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x1569
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1365
187C	Weak Memory dfs and similar, dsu	2000	x958
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x928
433D	Nanami's Digital Board dsu, implementation	2000	x895
195E	Building Forest data structures, dsu, graphs	2000	x564
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x3545
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x2986
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x2765
1278D	Segment Tree data structures, dsu, graphs, trees	2100	x2437
788B	Weird journey combinatorics, constructive algorithms, dfs and similar, dsu, graphs	2100	x1744
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2100	x1504
1108F	MST Unification binary search, dsu, graphs, greedy	2100	x1480
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x1323
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1147
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x970
165D	Beard Graph data structures, dsu, trees	2100	x956
111C	Petya and Spiders bitmasks, dp, dsu	2100	x926

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