Solved by qquuiet

#	Title	# Solved	Avg. Tries
10718	We love kriii STANDARD	182,726	1.53
10172	Dogs STANDARD	181,732	2.33
10171	Cats STANDARD	186,034	2.79
2557	Hello World STANDARD	358,620	2.54
1991	트리 순회	33,409	1.49
1260	DFS와 BFS STANDARD	74,437	2.61
1000	A+B STANDARD	324,622	2.59

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