LeetCode 617 Merge Two Binary Trees 合併二叉樹
class Solution {
public:
TreeNode* mergeTrees(TreeNode* t1, TreeNode* t2) {
if(t1 && t2)
{
TreeNode* root=new TreeNode(t1->val+t2->val);
root->left=mergeTrees(t1->left, t2->left);
root->right=mergeTrees(t1->right, t2->right);
return root;
}
else
return t1?t1:t2;
}
};
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