#분리 집합 disjoint_set

#	제목	푼 사람 수	평균 시도
6909	Trucking Troubles	10	1.30
31724	Hyper Tree Problem	33	1.30
3900	Slim Span	16	1.31
6927	Connect The Campus	16	1.31
26296	Dihotomna Dioba	16	1.31
20757	Roadside optimization	54	1.31
15076	Vin Diagrams	3	1.33
18933	최소 스패닝 트리와 쿼리	9	1.33
27492	XOR, Tree, and Queries	9	1.33
31696	Modernizacja Bajtocji	3	1.33
11638	Flipping Cards	14	1.36
30480	Elevated Profits	11	1.36
17734	Making Friends is Fun	19	1.37
21932	To be Connected, or not to be, that is the Question	37	1.38
5574	認証レベル	13	1.38
21210	Safe Distance	39	1.38
7673	Jogger	5	1.40
18202	Dance Circle	5	1.40
24961	Planning Railroad Discontinuation	5	1.40
27545	運河 (Canal)	15	1.40
30650	Labirint	10	1.40
19328	Code-Cola Plants	12	1.42
11450	Manhattan Power Failure	21	1.43
24657	Edges, Colors and MST	28	1.43
17999	Maze Connect	27	1.44
12658	Watersheds (Large)	37	1.49
12012	Closing the Farm (Gold)	252	1.49
28118	안전한 건설 계획	133	1.49
16307	Driver Disagreement	55	1.49
25172	꼼꼼한 쿠기의 졸업여행	123	1.50
5033	Money Matters	56	1.50
8584	Urzędnicy	12	1.50
9098	The Suspects	28	1.50
26985	Redundant Paths	6	1.50
30324	Finding Bridges	10	1.50
31393	Urban geography	4	1.50
12004	Closing the Farm (Silver)	208	1.54
19687	Experimental Charges	7	1.57
27603	Train Splitting	21	1.57
17197	Fence Planning	218	1.59
16912	트리와 쿼리 12	189	1.59
11085	군사 이동	760	1.59
23299	화질 - 자동 (480p)	25	1.60
15586	MooTube (Gold)	328	1.61
20031	Remote Control	44	1.61
30471	호반우가 학교에 지각한 이유 4	72	1.63
5673	Fix the Pond	11	1.64
31633	첨단 가지 농장	47	1.64
31055	A Graph Problem	25	1.64
25428	분필 도둑	99	1.65

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