Solved by raikoin

#	Title	# Solved	Avg. Tries
5557	1학년	8,049	2.10
5565	영수증	13,597	1.14
5575	타임 카드	6,765	1.31
5582	공통 부분 문자열	6,838	2.35
5596	Score	12,519	1.22
5597	Who have not handed in ?	67,559	1.94
5615	아파트 임대 STANDARD	1,405	4.99
5622	BAKA	77,071	1.71
5635	Birthdates	8,633	1.47
5639	Binary Search Tree	14,354	2.62
5670	Cellphone Typing	2,722	2.84
5717	Og	12,081	1.29
5719	Almost Shortest Path	3,860	5.09
5735	Emoticons :-)	148	3.55
5928	Contest Timing	2,572	1.80
5977	Mowing the Lawn	395	2.56
6064	Cain Calendar	15,704	3.68
6087	Laserphones	3,088	4.33
6199	Big Square	38	2.53
6497	Dark roads	5,774	2.84
6549	Largest Rectangle in a Histogram	11,181	3.63
6588	Goldbach's Conjecture	12,542	4.57
6603	Lotto	26,240	1.80
6749	Next in line STANDARD	7,929	1.14
6763	Speed fines are not fine!	2,612	1.57
6764	Sounds fishy!	2,360	2.42
6778	Which Alien?	3,603	1.45
6810	ISBN	2,959	1.47
6825	Body Mass Index	1,505	1.41
6840	Who is in the middle?	4,749	1.33
6887	Squares	1,520	1.45
6888	Terms of Office	1,232	1.40
7107	Journey of A Knight	59	1.92
7287	Registration STANDARD	62,534	1.92
7420	Wall	1,012	2.38
7469	K-th Number	1,848	3.07
7501	Key	275	3.74
7562	Knight Moves STANDARD	27,425	1.90
7568	덩치	52,333	1.78
7569	토마토 STANDARD	32,832	2.33
7576	토마토 STANDARD	52,984	2.67
7578	공장	3,846	2.55
7579	앱 STANDARD	9,489	2.99
7595	Triangles	2,196	1.21
7626	Rectangles	665	4.07
7662	Dual Priority Queue	13,253	4.51
7682	Tic-Tac-Toe	2,228	3.53
7785	Easy work	21,687	2.44
7869	Circular Area	1,374	3.24
7891	Can you add this?	6,305	1.22

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