Solved by gs25

#	Title	# Solved	Avg. Tries
4803	Trees	4,980	3.06
4948	Chebyshev's Theorem	35,377	2.57
4949	The Balance of the World	40,227	3.05
5086	Factors And Multiples	38,000	1.60
5250	Shortest paths	202	4.46
5419	North-Western Winds	1,883	2.90
5430	Integer Lists STANDARD	26,694	4.90
5466	Salesman	209	3.78
5470	Linear Garden	63	1.75
5525	IOIOI	10,672	3.36
5530	JOIOI 탑	224	2.48
5542	JOI 국가의 행사	354	2.08
5615	아파트 임대 STANDARD	1,357	5.04
5622	BAKA	75,323	1.71
5639	Binary Search Tree	13,897	2.63
5646	Paths in a Tree	35	3.83
5670	Cellphone Typing	2,593	2.89
5719	Almost Shortest Path	3,766	5.10
5820	경주	594	4.74
5821	쌀 창고	207	2.88
5977	Mowing the Lawn	384	2.57
6064	Cain Calendar	15,317	3.69
6116	Tower of Hay	66	2.55
6171	Land Acquisition	591	3.16
6181	Cow Neighborhoods	83	2.96
6549	Largest Rectangle in a Histogram	10,888	3.65
6989	채점	257	3.65
7420	Wall	978	2.39
7453	4 Values whose Sum is 0	6,573	4.39
7562	Knight Moves STANDARD	26,714	1.91
7568	덩치	51,311	1.78
7569	토마토 STANDARD	31,955	2.34
7576	토마토 STANDARD	51,764	2.68
7578	공장	3,769	2.56
7579	앱 STANDARD	9,135	2.99
7626	Rectangles	640	4.10
7662	Dual Priority Queue	12,822	4.54
7687	Box walking	70	4.39
7785	Easy work	20,620	2.46
7869	Circular Area	1,247	3.34
8008	Sums	32	1.94
8131	Ploughing	137	4.32
8155	Postering	73	1.45
8177	Ice Skates	120	1.73
8202	Conspiracy	79	6.15
8203	Lollipop	86	2.47
8217	Meteors	431	4.31
8230	Squarks	44	2.70
8243	Triumphal arch	66	3.48
8293	Prime prime power	34	8.97

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