标签:new problem point bin connect tree .com root ati
与116. 填充同一层的兄弟节点完全一样,二叉树的层次遍历。。这是这次不是完美二叉树了
class Solution {
public void connect(TreeLinkNode root) {
if (root == null) return;
LinkedList<TreeLinkNode> queue = new LinkedList<>();
queue.offer(root);
TreeLinkNode flag = root;
TreeLinkNode last = null;
while (!queue.isEmpty()) {
TreeLinkNode nowNode = queue.poll();
if (last != null) {
last.next = nowNode;
}
if (nowNode.left != null) queue.add(nowNode.left);
if (nowNode.right != null) queue.add(nowNode.right);
last = nowNode;
if (flag == nowNode) {
nowNode.next = null;
flag = queue.peekLast();
last = null;
}
}
}
}
标签:new problem point bin connect tree .com root ati
原文地址:https://www.cnblogs.com/acbingo/p/9919434.html