negative tests
const arguments
[1,2]	[1,2,3,4]	0.5
[1,1.1,2.2]	[2.2,3.3,444]	0.2
[1]	[1]	1
['a']	['a','aa','aaa']	0.33
[[1,2],[3,4]]	[[1,2],[3,5]]	0.33
non-const arguments
[1]	[1,2]	0.5
[1,2]	[1,2]	1
[1,2,3]	[1,2]	0.67
[1]	[]	0
[1,2]	[]	0
[1,2,3]	[]	0
[1,2]	[1]	0.5
[1,2]	[1,2]	1
[1,2]	[1,2,3]	0.67
[]	[1]	0
[]	[1,2]	0
[]	[1,2,3]	0
[1]	[1]	1
[1,2]	[1,2]	1
[1,2,3]	[1,2,3]	1