Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
2 days
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Difficulty: —

dsu

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Problems

#	Name
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1317
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2361
217E	Alien DNA data structures, dsu, trees	2800	x293
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20500
212D	Cutting a Fence binary search, data structures, dsu	2500	x454
209C	Trails and Glades constructive algorithms, dsu, graphs, greedy	2400	x703
196E	Opening Portals dsu, graphs, shortest paths	2600	x835
195E	Building Forest data structures, dsu, graphs	2000	x690
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1445
187C	Weak Memory dfs and similar, dsu	2000	x1301
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2458
177C1	Party dfs and similar, dsu, graphs	1500	x2462
165D	Beard Graph data structures, dsu, trees	2100	x1594
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2377
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x867
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1279
109C	Lucky Tree dp, dsu, trees	1900	x3202
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x136
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8556
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x371
95E	Lucky Country dp, dsu, graphs	2500	x1395
91C	Ski Base combinatorics, dsu, graphs	2300	x864
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x853
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x921
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x329
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x978
76A	Gift dsu, graphs, sortings, trees	2200	x1456
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x951
60D	Savior brute force, dsu, math	2500	x397
60B	Serial Time! dfs and similar, dsu	1400	x4463
46F	Hercule Poirot Problem dsu, graphs	2300	x311
45B	School dp, dsu	2200	x269
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x499
28B	pSort dfs and similar, dsu, graphs	1600	x4432
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2380
25D	Roads not only in Berland dsu, graphs, trees	1900	x10476
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1635
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4513
13E	Holes data structures, dsu	2700	x5415
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x996
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x3015

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