Solved by concavehull

#	Title	# Solved	Avg. Tries
25061	Antennas	43	1.77
26191	Differences	37	2.76
26464	2-LIS	17	2.12
26469	$N-1$ Truths and a Lie	10	3.20
26850	XOR Pairs	36	1.47
26851	Bicycle Tour	25	1.60
26854	Concerto de Pandemic	10	6.60
26855	Not One	28	2.54
26858	Stable Planetary System	18	3.61
30392	$K$분 그래프	44	3.05
31966	이진 트리	125	1.58
31967	오름차순	48	3.21

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