Solved by qquuiet

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	322,308	2.59
1260	DFS와 BFS STANDARD	73,761	2.61
1991	트리 순회	33,027	1.49
2557	Hello World STANDARD	356,155	2.54
10171	Cats STANDARD	184,564	2.80
10172	Dogs STANDARD	180,315	2.33
10718	We love kriii STANDARD	182,558	1.53

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