Constructed binary tree is 1 / \ 2 3 / \ / 4 5 8
root = new Node ( 1 ) ; root . left = new Node ( 2 ) ; root . right = new Node ( 3 ) ; root . left . left = new Node ( 4 ) ; root . left . right = new Node ( 5 ) ; root . right . left = new Node ( 8 ) ; printKDistant ( root , 2 ) ;