Solved by qquuiet

#	Title	# Solved	Avg. Tries
10718	We love kriii STANDARD	180,724	1.53
10172	Dogs STANDARD	169,038	2.35
10171	Cats STANDARD	172,739	2.83
2557	Hello World STANDARD	335,113	2.54
1991	트리 순회	29,943	1.49
1260	DFS와 BFS STANDARD	67,849	2.64
1000	A+B STANDARD	302,545	2.57

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