| [200. Number of Islands](https://leetcode.com/problems/number-of-islands/?show=1) | [200. 岛屿数量](https://leetcode.cn/problems/number-of-islands/?show=1) |
| [2049. Count Nodes With the Highest Score](https://leetcode.com/problems/count-nodes-with-the-highest-score/?show=1) | [2049. 统计最高分的节点数目](https://leetcode.cn/problems/count-nodes-with-the-highest-score/?show=1) |
@@ -414,6 +414,7 @@ while (!q1.isEmpty() && !q2.isEmpty()) {
| [102. Binary Tree Level Order Traversal](https://leetcode.com/problems/binary-tree-level-order-traversal/?show=1) | [102. 二叉树的层序遍历](https://leetcode.cn/problems/binary-tree-level-order-traversal/?show=1) |
| [117. Populating Next Right Pointers in Each Node II](https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii/?show=1) | [117. 填充每个节点的下一个右侧节点指针 II](https://leetcode.cn/problems/populating-next-right-pointers-in-each-node-ii/?show=1) |
| [431. Encode N-ary Tree to Binary Tree](https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree/?show=1)🔒 | [431. 将 N 叉树编码为二叉树](https://leetcode.cn/problems/encode-n-ary-tree-to-binary-tree/?show=1)🔒 |
| [863. All Nodes Distance K in Binary Tree](https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/?show=1) | [863. 二叉树中所有距离为 K 的结点](https://leetcode.cn/problems/all-nodes-distance-k-in-binary-tree/?show=1) |