dna

dna.rb

def maybe_match(s1, s2)
 
  s1pointer = 0
  s2pointer = 0
 
  until s1pointer == s1.size
    if s1[s1pointer] == s2[s2pointer] || s1[s1pointer] == 'N'
      s1pointer+=1
      s2pointer+=1
    else
      s2pointer = 0
      s1pointer +=1 if s1[s1pointer] != s2[s2pointer]
    end
    return true if s2pointer == s2.size
  end
  false
end


puts maybe_match("ACNTAGNC","ACGT")
puts maybe_match("ACNTAGNC", "TAG")
puts maybe_match("ACNTAGNC", "GGGG")