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Kishy-nivas/invert_tree.cpp

Created June 20, 2018 09:08
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invert_tree.cpp
/**
* Definition for a binary tree node.
* struct TreeNode {
* int val;
* TreeNode *left;
* TreeNode *right;
* TreeNode(int x) : val(x), left(NULL), right(NULL) {}
* };
*/
class Solution {
public:
TreeNode* invertTree(TreeNode* root) {
if(root == nullptr)
return nullptr;
TreeNode* left = invertTree(root->left);
TreeNode* right = invertTree(root->right);
root->left = right;
root->right = left;
return root;
}
};
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