Solved by nruivv4859

#	Title	# Solved	Avg. Tries
10871	X보다 작은 수 STANDARD	145,033	1.84
10807	개수 세기 STANDARD	72,031	1.61
9086	문자열 STANDARD	46,169	1.55
5597	Who have not handed in ?	58,891	1.93
2562	최댓값	127,840	2.20

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