Finding common elements in two arrays of different size

Question

I have a problem to find common elements in two arrays and that\'s of different size.

Take , Array A1 of size n and Array A2 o

Answer 1

class SortedArr

    def findCommon(a,b)

      j =0
      i =0
      l1=a.length
      l2=b.length

      if(l1 > l2)
            len=l1
      else
            len=l2
      end


     while i < len
          if a[i].to_i > b[j].to_i
              j +=1
          elsif a[i].to_i < b[j].to_i
              i +=1
          else   
              puts a[i] # OR store it in other ds
              i +=1
              j +=1
          end
     end
  end
end

 t = SortedArr.new
 t.findCommon([1,2,3,4,6,9,11,15],[1,2,3,4,5,12,15])