fn new() -> Self {
        WordDictionary {
            root: Word::new(),
        }
    }
/** Initialize your data structure here. */
Initialize your data structure here.
Initialize your data structure here .
fn new() -> Self {
        WordDictionary {
            root: Word::new(),
        }
    }
fn new ( ) -> Self { WordDictionary { root : Word :: new ( ) , } }
Initialize your data structure here.
Initialize your data structure here .