package ds;

/**
 * Created by sherxon on 6/4/17.
 */
public class SkipList {


  private class SkipNode {

    SkipNode left, right, up, down;

  }
}

package ds;


/**
 * Created by sherxon on 6/4/17.
 */
public class SkipList {


  private class SkipNode {

    SkipNode left, right, up, down;
    String key;
    Integer value;
  }
}

change in readme