Solved by arnold518

#	Title	# Solved	Avg. Tries
31283	평균 최대화	6	5.17
31285	경찰과 도둑	9	2.44
31286	철도 2	45	4.02
31570	섬	18	2.72
31571	점프 게임	11	2.45
31572	팰린드롬 판별하기	43	3.74
31573	바이러스	13	1.00
31623	Room Temperature	19	1.26
31624	Construction Project 2	23	1.74
31626	Gift Exchange	9	3.00
31767	Grass Segments	6	1.67
31813	RUN Number	148	2.19
31814	Sequence and Queries	61	1.41
31815	Construct a Graph	46	3.04
31816	Closet	25	2.36
31817	Two Histograms	10	3.10

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