Problemset - Codeforces

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dsu

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Problems

#	Name
217E	Alien DNA data structures, dsu, trees	2800	x290
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20368
212D	Cutting a Fence binary search, data structures, dsu	2500	x451
209C	Trails and Glades constructive algorithms, dsu, graphs, greedy	2400	x690
196E	Opening Portals dsu, graphs, shortest paths	2600	x829
195E	Building Forest data structures, dsu, graphs	2000	x687
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1432
187C	Weak Memory dfs and similar, dsu	2000	x1297
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2437
177C1	Party dfs and similar, dsu, graphs	1500	x2445
165D	Beard Graph data structures, dsu, trees	2100	x1584
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2354
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x808
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1270
109C	Lucky Tree dp, dsu, trees	1900	x3186
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x135
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8520
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x370
95E	Lucky Country dp, dsu, graphs	2500	x1386
91C	Ski Base combinatorics, dsu, graphs	2300	x862
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x845
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x910
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x326
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x977
76A	Gift dsu, graphs, sortings, trees	2200	x1444
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x949
60D	Savior brute force, dsu, math	2500	x394
60B	Serial Time! dfs and similar, dsu	1400	x4439
46F	Hercule Poirot Problem dsu, graphs	2300	x307
45B	School dp, dsu	2200	x266
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x495
28B	pSort dfs and similar, dsu, graphs	1600	x4399
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2359
25D	Roads not only in Berland dsu, graphs, trees	1900	x10341
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1609
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4469
13E	Holes data structures, dsu	2700	x5354
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x987
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x2999

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