Solved by youngjun7

#	Title	# Solved	Avg. Tries
4307	Ants	2,396	2.01
4342	Euclid's Game	428	2.80
4354	Power Strings	2,367	2.94
4386	Freckles	8,778	1.71
4673	Self Numbers	72,730	2.03
4779	Cantoring Along	7,687	2.23
4792	Red/Blue Spanning Tree	1,084	2.51
4948	Chebyshev's Theorem	35,465	2.57
4999	Aaah! STANDARD	14,477	1.60
5227	Game of Stones	28	2.57
5389	Treasure Map	122	3.22
5419	North-Western Winds	1,900	2.89
5430	Integer Lists STANDARD	26,822	4.90
5470	Linear Garden	63	1.75
5525	IOIOI	10,751	3.36
5528	달려라 IOI 열차	130	3.65
5529	저택	140	5.34
5530	JOIOI 탑	224	2.48
5551	쇼핑몰	147	2.45
5552	걷는 산타클로스	74	4.19
5561	과자의 분할	132	2.18
5572	사다리 게임	55	1.80
5573	산책	892	2.08
5597	Who have not handed in ?	65,164	1.94
5615	아파트 임대 STANDARD	1,368	5.02
5620	가장 가까운 두 점의 거리	717	2.32
5626	JEDAN	634	3.50
5636	Prime Substring	527	2.11
5639	Binary Search Tree	13,956	2.63
5719	Almost Shortest Path	3,778	5.10
5896	Cow Coupons	231	4.01
5962	Generic Cow Protests	62	2.44
5977	Mowing the Lawn	384	2.57
6086	Total Flow	2,644	3.63
6223	Cow Sorting	214	1.41
6438	Reverse Text	435	1.29
6497	Dark roads	5,574	2.87
6543	The Bottom of a Graph	632	1.87
6549	Largest Rectangle in a Histogram	10,935	3.64
6567	Let it Bead	95	1.18
6603	Lotto	25,881	1.79
6672	Electricity	103	2.90
6840	Who is in the middle?	4,509	1.33
7287	Registration STANDARD	61,573	1.92
7453	4 Values whose Sum is 0	6,611	4.39
7469	K-th Number	1,815	3.08
7561	Cramer’s Rule	145	4.32
7569	토마토 STANDARD	32,157	2.34
7576	토마토 STANDARD	52,032	2.68
7578	공장	3,782	2.55

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