Solved by personazz2

#	Title	# Solved	Avg. Tries
2042	구간 합 구하기 STANDARD	14,730	3.87
2357	최솟값과 최댓값 STANDARD	10,338	1.91
6549	Largest Rectangle in a Histogram	11,347	3.62
11437	LCA	6,351	2.44
11438	LCA 2	7,451	3.04

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