Solved by meatrow

#	Title	# Solved	Avg. Tries
16694	The ABCD Murderer	57	4.32
16702	The Silence of the Lamps	80	2.01
17192	Snakes	174	1.56
17193	I Would Walk 500 Miles	154	3.01
17194	Balancing Inversions	50	2.40
17399	트리의 외심	450	2.82
18452	Free Edges	47	1.34
18453	Graph Counting	23	1.57
19125	Bipartite Graph Coloring	10	2.70
19128	Three Points	40	2.10
19132	Substring Query	15	2.87
19133	Subset Sum	57	2.04
19134	$2x + 2$	199	2.45
19432	Acperience	21	2.24
19442	Keep On Movin	15	2.07
20042	Hotspots	33	3.27

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