Solved by thesky

#	Title	# Solved	Avg. Tries
17952	과제는 끝나지 않아!	2,842	2.04
19238	스타트 택시	4,941	4.67
22255	호석사우루스	212	2.42
30805	Lexicographically Largest Common Subsequence	776	3.26

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