Solved by sungj8770

#	Title	# Solved	Avg. Tries
11726	2×n 타일링	54,361	2.72
11727	2×n 타일링 2	39,580	1.71
12813	이진수 연산	2,180	1.64
13904	과제	4,900	1.89
17509	And the Winner Is... Ourselves!	826	1.14

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