Problemset - Codeforces

→ Pay attention

Contest is running
Codeforces Round 942 (Div. 1)
01:00:20

Contest is running
Codeforces Round 942 (Div. 2)
01:00:20

→ Filter Problems

Difficulty: —

dsu

Add tag

Problems

#	Name
217E	Alien DNA data structures, dsu, trees	2800	x290
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x20347
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	x686
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1430
187C	Weak Memory dfs and similar, dsu	2000	x1297
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2429
177C1	Party dfs and similar, dsu, graphs	1500	x2442
165D	Beard Graph data structures, dsu, trees	2100	x1583
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2350
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x806
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1265
109C	Lucky Tree dp, dsu, trees	1900	x3185
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x135
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8513
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x370
95E	Lucky Country dp, dsu, graphs	2500	x1383
91C	Ski Base combinatorics, dsu, graphs	2300	x861
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x845
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x908
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x325
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x977
76A	Gift dsu, graphs, sortings, trees	2200	x1442
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	x4434
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	x4395
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2357
25D	Roads not only in Berland dsu, graphs, trees	1900	x10317
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1608
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4463
13E	Holes data structures, dsu	2700	x5341
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x986
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x2993

→