private static void PrintLeftview(BTNode root) { Queue<BTNode> nodes = new Queue<BTNode>(); BTNode current = root; while (current != null) { if (current.LeftNode != null) { nodes.Enqueue(current.LeftNode); } if (current.RightNode != null) { nodes.Enqueue(root.RightNode); } WriteLine(current.Data); current = current.LeftNode ?? current.RightNode; } // }
private static BTNode ConstructTree() { BTNode root = new BTNode(1); BTNode two = new BTNode(2); BTNode three = new BTNode(3); BTNode four = new BTNode(4); BTNode five = new BTNode(5); BTNode six = new BTNode(6); BTNode seven = new BTNode(7); root.LeftNode = two; root.RightNode = three; two.LeftNode = four; two.RightNode = five; three.LeftNode = six; three.RightNode = seven; return root; }