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  1. def print_arr(arr)
  2.   arr.each do |inner|
  3.     puts inner.join
  4.   end
  5. end
  6.  
  7. def print_cross(n)
  8. 	arr = Array.new(n) { Array.new(n) { ' ' } }
  9. 	0.upto(n-1) {|i| arr[i][i] = 'X'; arr[n-1-i][i] = 'X'}
  10. 	print_arr arr
  11. end
  12.  
  13. print_cross 9
Success #stdin #stdout 0.05s 9704KB
comments (?)
stdin
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Standard input is empty
stdout
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X       X
 X     X 
  X   X  
   X X   
    X    
   X X   
  X   X  
 X     X 
X       X
https://ideone.com/anbIms
language:
Ruby (ruby 2.5.5)
created:
8 years ago
visibility:
public

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