Solved by jerry0806

#	Title	# Solved	Avg. Tries
4217	Ancient Messages	196	4.12
5597	Who have not handed in ?	68,832	1.94
10818	최소, 최대	146,242	2.25
10869	사칙연산 STANDARD	231,150	2.24
10926	??! STANDARD	137,200	1.99

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