/**
 * TreeAnswers class for binary tree exercises.
 */
public class TreeAnswers {

  public int BTsumall(BinNode root) {
    return -1;
  }

  public int BTleaf(BinNode root) {
    return -1;
  }

  public BinNode BTsetdepth(BinNode root, int depth) {
    return null;
  }

  public int BTheight(BinNode root) {
    return -1;
  }

  public boolean MBTstructure(BinNode root1, BinNode root2) {
    return false;
  }

  public boolean MBTmirror(BinNode root1, BinNode root2) {
    return false;
  }

}