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LeetCode-Solutions/C++/same-tree.cpp at master · pythonpeixun/LeetCode-Solutions · GitHub
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same-tree.cpp
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same-tree.cpp
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//
Time: O(n)
//
Space: O(h), h is height of binary tree
/*
*
* 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:
bool
isSameTree
(TreeNode* p, TreeNode* q) {
if
(!p && !q) {
return
true
;
}
return
p && q && p->
val
== q->
val
&&
isSameTree
(p->
left
, q->
left
) &&
isSameTree
(p->
right
, q->
right
);
}
};
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