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  1. #!ruby
  2.  
  3. def tree_sub( data, cd, nst )
  4. 	cds = []
  5. 	data.each_with_index{|n,idx|
  6. 		cds << idx	if n == cd
  7. 	}
  8. 	cds.each_with_index{|x,idx|
  9. 		print "│ " * nst, (cds.size - 1 <= idx)? "└" : "├", "─ #{x}\n"
  10. 		tree_sub( data, x, nst + 1 )
  11. 	}
  12. end
  13.  
  14. def tree( data )
  15. 	cd = data.index( -1 )
  16. 	puts cd
  17. 	tree_sub( data, cd, 0 )
  18. end
  19.  
  20.  
  21. 	tree( [1, 2, -1, 0, 0, 1, 1, 2] )
  22.  
Success #stdin #stdout 0.01s 5736KB
comments (?)
stdin 
Standard input is empty
stdout 
2
├─ 1
│ ├─ 0
│ │ ├─ 3
│ │ └─ 4
│ ├─ 5
│ └─ 6
└─ 7
https://ideone.com/u2CqvF
language:
Ruby (ruby 2.5.5)
created:
8 years ago
visibility:
public

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