Solved by compyh

#	Title	# Solved	Avg. Tries
2438	별 찍기 - 1 STANDARD	182,965	1.61
2439	별 찍기 - 2 STANDARD	166,966	1.79
2562	최댓값	134,948	2.20
2739	구구단 STANDARD	194,325	1.97
5597	Who have not handed in ?	65,047	1.94
9012	Parenthesis	78,283	2.16
10807	개수 세기 STANDARD	79,920	1.62
10828	스택	75,343	2.63

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