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更新0116.填充每个节点的下一个右侧节点指针java注释及代码规范

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ironartisan
2021-08-11 20:13:02 +08:00
parent 44af8bd066
commit b02e144d7a
1 changed files with 13 additions and 13 deletions
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26
problems/0116.填充每个节点的下一个右侧节点指针.md
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@ -133,14 +133,14 @@ public:
// 递归法
class Solution {
public void traversal(Node cur) {
if(cur == null) return;
if(cur.left != null) cur.left.next = cur.right;
if(cur.right != null){
if(cur.next != null) cur.right.next = cur.next.left;
if (cur == null) return;
if (cur.left != null) cur.left.next = cur.right; // 操作1
if (cur.right != null) {
if(cur.next != null) cur.right.next = cur.next.left; //操作2
else cur.right.next = null;
}
traversal(cur.left);
traversal(cur.right);
traversal(cur.left); // 左
traversal(cur.right); //右
}
public Node connect(Node root) {
traversal(root);
@ -152,26 +152,26 @@ class Solution {
// 迭代法
class Solution {
public Node connect(Node root) {
if(root == null) return root;
if (root == null) return root;
Queue<Node> que = new LinkedList<Node>();
que.offer(root);
Node nodePre = null;
Node node = null;
while(!que.isEmpty()){
while (!que.isEmpty()) {
int size = que.size();
for(int i=0; i<size; i++){ // 开始每一层的遍历
if(i == 0){
for (int i=0; i<size; i++) { // 开始每一层的遍历
if (i == 0) {
nodePre = que.peek(); // 记录一层的头结点
que.poll();
node = nodePre;
}else{
} else {
node = que.peek();
que.poll();
nodePre.next = node; // 本层前一个节点next指向本节点
nodePre = nodePre.next;
}
if(node.left != null) que.offer(node.left);
if(node.right != null) que.offer(node.right);
if (node.left != null) que.offer(node.left);
if (node.right != null) que.offer(node.right);
}
nodePre.next = null; // 本层最后一个节点指向null
}