Solved by yt7good

#	Title	# Solved	Avg. Tries
4803	Trees	5,386	3.02
4948	Chebyshev's Theorem	36,346	2.55
4963	How Many Islands? STANDARD	28,394	2.00
5014	Elevator Trouble	15,934	2.93
5021	Succession	479	2.62
5052	Phone List	10,581	3.18
5419	North-Western Winds	1,957	2.88
5427	Fire	9,304	3.91
5446	The Great Cleanup	468	2.82
5576	콘테스트	6,063	1.26
5585	거스름돈	27,844	1.52
5597	Who have not handed in ?	69,618	1.94
5620	가장 가까운 두 점의 거리	733	2.30
5622	BAKA	78,494	1.71
5639	Binary Search Tree	14,641	2.61
5670	Cellphone Typing	2,787	2.84
5719	Almost Shortest Path	3,962	5.08
5916	Grass Planting	434	1.96
5971	Meeting Place	79	1.11
5972	Package Delivery	5,061	1.71
6073	Secret Message	73	3.00
6236	Monthly Expense	4,877	3.43
6416	Is It A Tree? STANDARD	1,146	4.92
6497	Dark roads	5,887	2.84
6543	The Bottom of a Graph	650	1.86
6549	Largest Rectangle in a Histogram	11,402	3.62
6591	Binomial Showdown	1,628	3.71
6615	Collatz Conjecture	244	3.13
6800	Huffman Encoding	110	1.47
7432	Disk Tree	823	1.72
7453	4 Values whose Sum is 0	7,137	4.40
7562	Knight Moves STANDARD	27,945	1.89
7573	고기잡이	1,092	3.88
7575	바이러스	761	2.48
7576	토마토 STANDARD	54,010	2.66
7578	공장	3,902	2.55
7579	앱 STANDARD	9,808	2.99
7626	Rectangles	689	4.05
7662	Dual Priority Queue	13,639	4.51
7742	Railway	88	2.48
7785	Easy work	22,466	2.44
7795	Eat or Be Eaten	7,359	1.98
8012	Byteasar the Travelling Salesman	849	1.76
8393	Sum STANDARD	170,646	1.56
8462	배열의 힘	969	2.41
8892	Palindrome	1,891	2.14
8983	사냥꾼	3,640	2.91
9007	Canoe Racer	796	3.80
9015	Square	530	5.22
9019	DSLR	15,213	4.76

124567891011