algorithm/leetcode-master
1
0
Fork 0
mirror of https://github.com/youngyangyang04/leetcode-master.git synced 2025-07-09 19:44:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

修改: 0617 合并二叉树

Browse Source 
修改代码细节，优化性能.

用原有的Root1 代替 创建的NewRoot.
This commit is contained in:
AronJudge
2022-07-16 15:43:50 +08:00
parent c75fdf3dae
commit 8b9b64d7d5
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
problems/0617.合并二叉树.md
View File

@ -262,10 +262,10 @@ class Solution {
if (root1 == null) return root2; if (root1 == null) return root2;
if (root2 == null) return root1; if (root2 == null) return root1;
TreeNode newRoot = new TreeNode(root1.val + root2.val); root1.val += root2.val;
newRoot.left = mergeTrees(root1.left,root2.left); root1.left = mergeTrees(root1.left,root2.left);
newRoot.right = mergeTrees(root1.right,root2.right); root1.right = mergeTrees(root1.right,root2.right);
return newRoot; return root1;
} }
} }
``` ```