Problemset - Codeforces

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dsu

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Problems

#	Name
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x6905
195E	Building Forest data structures, dsu, graphs	2000	x686
433D	Nanami's Digital Board dsu, implementation	2000	x1036
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x1270
187C	Weak Memory dfs and similar, dsu	2000	x1296
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1748
1619G	Unusual Minesweeper binary search, dfs and similar, dsu, greedy, sortings	2000	x2258
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x2730
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2792
1209G1	Into Blocks (easy version) data structures, dsu, greedy, implementation, two pointers	2000	x2856
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2901
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x3021
1923E	Count Paths data structures, dfs and similar, dp, dsu, graphs, trees	2000	x3098
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x3260
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3533
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x3642
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3653
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x3776
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4050
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x4775
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5016
1344B	Monopole Magnets constructive algorithms, dfs and similar, dsu, graphs	2000	x5772
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x6191
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9108
982D	Shark brute force, data structures, dsu, trees	1900	x2241
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2303
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2324
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x2884
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x2982
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3076
566D	Restructuring Company data structures, dsu	1900	x3087
437D	The Child and Zoo dsu, sortings	1900	x3132
109C	Lucky Tree dp, dsu, trees	1900	x3182
1787D	Game on Axis combinatorics, dfs and similar, dsu, graphs, implementation	1900	x3253
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3312
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3587
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3645
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x3683
1482D	Playlist data structures, dsu, implementation, shortest paths	1900	x3724
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	1900	x4382
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x4663
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x4987
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5047
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5132
1624G	MinOr Tree bitmasks, dfs and similar, dsu, graphs, greedy	1900	x5515
1095F	Make It Connected dsu, graphs, greedy	1900	x5825
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x6862
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x6953
1620E	Replace the Numbers constructive algorithms, data structures, dsu, implementation	1900	x7725
547B	Mike and Feet binary search, data structures, dp, dsu	1900	x8185
25D	Roads not only in Berland dsu, graphs, trees	1900	x10275
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1134
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2533
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2578
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x3875
1468J	Road Reform dsu, graphs, greedy	1800	x3879
1442B	Identify the Operations combinatorics, data structures, dsu, greedy, implementation	1800	x4295
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4901
371D	Vessels data structures, dsu, implementation, trees	1800	x5300
1872F	Selling a Menagerie dfs and similar, dsu, graphs, implementation, math	1800	x5748
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x6497
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	1800	x6584
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7277
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2436
670E	Correct Bracket Sequence Editor data structures, dsu, strings	1700	x3139
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5279
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x5601
1131F	Asya And Kittens constructive algorithms, dsu	1700	x6198
1873H	Mad City dfs and similar, dsu, games, graphs, shortest paths, trees	1700	x6508
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7069
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x7446
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7451
1411C	Peaceful Rooks dfs and similar, dsu, graphs	1700	x7753
1476D	Journey dfs and similar, dp, dsu, implementation	1700	x8375
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x8789
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x8819
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10223
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x10404
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16086
28B	pSort dfs and similar, dsu, graphs	1600	x4390
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1600	x5136
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x6766
723D	Lakes in Berland dfs and similar, dsu, graphs, greedy, implementation	1600	x6801
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x6898
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x7091
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7292
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8682
722C	Destroying Array data structures, dsu	1600	x8791
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10077
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x10182
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12252
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2424
177C1	Party dfs and similar, dsu, graphs	1500	x2438
1575J	Jeopardy of Dropped Balls binary search, brute force, dsu, implementation	1500	x3636
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4456
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x5113
490B	Queue dsu, implementation	1500	x5896
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8505
409H	A + B Strikes Back *special problem, brute force, constructive algorithms, dsu, implementation	1500	x8651
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10058