Solved by personazz2

#	Title	# Solved	Avg. Tries
11438	LCA 2	7,403	3.04
11437	LCA	6,298	2.44
6549	Largest Rectangle in a Histogram	11,252	3.62
2357	최솟값과 최댓값 STANDARD	10,268	1.91
2042	구간 합 구하기 STANDARD	14,532	3.88

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