Solved by 4hn6

#	Title	# Solved	Avg. Tries
7869	Circular Area	1,349	3.25
7785	Easy work	21,378	2.44
7662	Dual Priority Queue	13,106	4.52
7616	Disjoint paths	213	6.33
7595	Triangles	2,164	1.21
7579	앱 STANDARD	9,366	2.99
7576	토마토 STANDARD	52,586	2.67
7575	바이러스	741	2.48
7569	토마토 STANDARD	32,541	2.33
7568	덩치	51,950	1.78
7562	Knight Moves STANDARD	27,187	1.90
7535	A Bug’s Life	203	2.06
7523	Gauß in Elementary School	1,165	1.93
7510	Higher Math	3,392	2.03
7453	4 Values whose Sum is 0	6,756	4.38
7420	Wall	1,003	2.39
7287	Registration STANDARD	62,066	1.92
6916	0123456789 STANDARD	465	3.38
6888	Terms of Office	1,212	1.40
6887	Squares	1,486	1.45
6871	The Cell Sell STANDARD	77	2.51
6850	Cows	654	2.48
6841	I Speak TXTMSG	1,201	2.40
6840	Who is in the middle?	4,652	1.33
6825	Body Mass Index	1,481	1.41
6810	ISBN	2,933	1.48
6778	Which Alien?	3,576	1.45
6764	Sounds fishy!	2,348	2.42
6763	Speed fines are not fine!	2,601	1.57
6749	Next in line STANDARD	7,876	1.14
6672	Electricity	108	2.88
6603	Lotto	26,105	1.80
6593	Dungeon Master	7,668	2.56
6588	Goldbach's Conjecture	12,455	4.57
6549	Largest Rectangle in a Histogram	11,087	3.63
6543	The Bottom of a Graph	639	1.87
6497	Dark roads	5,725	2.85
6378	Digital Roots	2,815	2.12
6322	Geometry made simple	1,923	2.81
6321	IBM minus one STANDARD	2,748	2.02
6300	Word Puzzles	60	2.60
6264	Sub-dictionary	79	4.54
6241	Dining	230	2.20
6236	Monthly Expense	4,625	3.44
6198	Bad Hair Day	6,507	2.82
6131	Perfect Squares	2,794	1.36
6086	Total Flow	2,672	3.62
6064	Cain Calendar	15,585	3.68
5988	Even? Odd?	6,303	2.03
5928	Contest Timing	2,553	1.81

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