public BFSBinaryTree(Node node)
{
int max = maxLevel(node, 0);
nodes = new List<Node>[max];
for (int i = 0; i < max; i++)
nodes[i] = new List<Node>();
queue.Enqueue(node);
bfs(node, 0);
}
public void test()
{
Node node = new Node();
node.Value = 5;
node.Left = new Node();
node.Left.Value = 1;
node.Right = new Node();
node.Right.Value = 6;
Node res = find(node, 1, 6);
AssertHelper.assert(res != null && res.Value == 5, "True");
}
public Node find(Node node, int value, int value2)
{
while (node != null)
{
if (value > node.Value && value2 > node.Value)
node = node.Right;
else if (value < node.Value && value2 < node.Value)
node = node.Left;
else
return node;
}
return null;
}
public void bfs(Node node)
{
queue.Enqueue(node);
while (queue.Count > 0) {
Node n = queue.Dequeue();
if (n.Left != null) {
queue.Enqueue(n.Left);
}
if (n.Right != null) {
queue.Enqueue(n.Right);
}
Console.Write(n.Value + " ");
}
}
private void bfs(Node node, int level)
{
if (node == null) return;
while (queue.Count > 0)
{
Node n = queue.Dequeue();
nodes[level].Add(node);
}
if (node.Left != null)
queue.Enqueue(node.Left);
if (node.Right != null)
queue.Enqueue(node.Right);
bfs(node.Left, level + 1);
bfs(node.Right, level + 1);
}
public static void test()
{
Node node = new Node();
node.Value = 5;
node.Left = new Node();
node.Left.Value = 1;
node.Left.Left = new Node();
node.Left.Left.Value = 2;
node.Left.Right = new Node();
node.Left.Right.Value = 3;
node.Right = new Node();
node.Right.Value = 6;
node.Right.Left = new Node();
node.Right.Left.Value = 7;
node.Right.Right = new Node();
node.Right.Right.Value = 10;
BFSBinaryTree bfs = new BFSBinaryTree(node);
bfs.bfs(node);
//var v = bfs.levels();
}
private int maxLevel(Node node, int level)
{
if (node == null) return level;
int left = maxLevel(node.Left, level + 1);
int right = maxLevel(node.Right, level + 1);
return Math.Max(left, right);
}
