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Mar 22nd, 2019
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  1. func contains (word: String) -> Bool {
  2. var node = root
  3. for char in word {
  4. if node.children[char] == nil {
  5. return false
  6. }
  7. node = node.children[char]!
  8.  
  9. }
  10. return node.isFinal
  11. }
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