Solved by thesky

#	Title	# Solved	Avg. Tries
17952	과제는 끝나지 않아!	3,018	2.05
19238	스타트 택시	5,118	4.64
22255	호석사우루스	240	2.38
30805	Lexicographically Largest Common Subsequence	1,142	3.19

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