metallurgix · December 10, 2014 08:54
diff --git a/codility2-2.rb b/codility2-2.rb
 def solution(x, a)
  sum=(x*(x+1))/2
  pos=-1
  b=Array.new(x,0)
  (0..a.length-1).each do |i|
    if b[a[i]-1]==0
      b[a[i]-1]=1
      sum-=a[i]
      if sum==0
        pos=i
        break
      end
    end
  end
 pos
 end
	def solution(x, a)
	sum=(x*(x+1))/2
	pos=-1
	b=Array.new(x,0)
	(0..a.length-1).each do \|i\|
	if b[a[i]-1]==0
	b[a[i]-1]=1
	sum-=a[i]
	if sum==0
	pos=i
	break
	end
	end
	end
	pos
	end