epidemian/count-unique-triangles.rb

Created March 31, 2014 04:05

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A Ruby answer for http://codegolf.stackexchange.com/questions/19925/counting-triangles

Raw

count-unique-triangles.rb

	a=$<.map{\|l\|l.split.sort}
	p a.count{\|s\|1==a.count(s)}-1

Raw

sample

	5
	7 6 5
	5 7 6
	8 2 9
	2 3 4
	2 4 3
	2 3 3

epidemian commented Mar 31, 2014

Author

Sample run:

$ ruby count-unique-triangles.rb <sample
2

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