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same_tree.cpp
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41 lines (38 loc) · 687 Bytes
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#include <iostream>
using namespace std;
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;
}
if ((!p && q) || (p && !q) || p->val != q->val)
{
return false;
}
if (!isSameTree(p->left, q->left))
{
return false;
}
if (!isSameTree(p->right, q->right))
{
return false;
}
return true;
}
};
int main()
{
TreeNode *left = new TreeNode(0);
TreeNode *right = new TreeNode(0);
Solution solution;
cout << solution.isSameTree(left, right) << endl;
return 0;
}