#깊이 우선 탐색 dfs

#	제목	푼 사람 수	평균 시도
4068	Caterpillar	11	1.18
17748	Spy	22	1.18
23723	Hundred-Cell Calculation Puzzles	11	1.18
15092	Sheba’s Amoebas	192	1.19
9918	Cube	56	1.20
6759	LHC	5	1.20
10970	Calvinball championship, again 10	20	1.20
17325	Road Construction	5	1.20
19203	Four Colors	5	1.20
27732	숲 속의 과학자	5	1.20
31753	Clever Cell Choices	5	1.20
26999	Satellite Photographs	60	1.22
12427	박테리아 (Small)	18	1.22
12051	Dynamic Grid (Large)	64	1.23
16390	Sheba’s Amoebas	117	1.25
3264	ONE	48	1.25
4983	Curling 2.0	12	1.25
6369	Plato’s Blocks	4	1.25
10346	The Maze Makers	12	1.25
10642	Tree Reconstruction	12	1.25
10659	Dictionary	20	1.25
17710	Dungeon 2	8	1.25
8121	Step Traversing a Tree	27	1.26
17532	Denouncing Mafia	27	1.26
10613	MRAVI	23	1.26
12191	Minesweeper (Large)	38	1.26
30998	최고의 크리스마스트리	15	1.27
30610	A-maze-ing Lakes	26	1.27
13031	쉽게 행복한 나무	37	1.27
26359	A Prickly Problem – Black Edition	11	1.27
14145	Žetva	43	1.28
4852	Winter Festival	28	1.29
5886	Unlocking Blocks	7	1.29
18199	Commemorative Race	7	1.29
10702	NIKO	24	1.29
16817	Ninja Map	17	1.29
13237	Binary tree	175	1.30
7352	Sorting It All Out	10	1.30
25087	Hamiltonian Tour	10	1.30
6753	Chances of winning	13	1.31
9700	RAINFOREST CANOPY	52	1.31
21168	Agamemnon's Odyssey	13	1.31
24136	冊子の配布 (Distribution)	13	1.31
30429	Reavers	22	1.32
10204	Neighborhoods in Graphs	53	1.32
12083	Bad Horse (Small2)	86	1.33
12524	Twibet (Large)	27	1.33
14311	Evaluation (Large)	18	1.33
14361	Freeform Factory (Small)	12	1.33
21590	Investigating Imposters	27	1.33

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