Driver code
public static void Main ( String [ ] args ) { Node root = newNode ( 5 ) ; root . left = newNode ( 10 ) ; root . right = newNode ( 15 ) ; root . left . left = newNode ( 20 ) ; root . left . right = newNode ( 25 ) ; root . left . right . right = newNode ( 45 ) ; root . right . left = newNode ( 30 ) ; root . right . right = newNode ( 35 ) ; Console . WriteLine ( findDistance ( root , 45 ) ) ; } }