20 lines
507 B
C++

#include <bits/stdc++.h>
using namespace std;
struct TreeNode
{
int val;
TreeNode *left;
TreeNode *right;
TreeNode() : val(0), left(nullptr), right(nullptr) {}
TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
};
class Solution
{
public:
bool isIdenticalTree(TreeNode *t1, TreeNode *t2);
bool isSubtree(TreeNode *root, TreeNode *subRoot);
bool test(TreeNode *root, TreeNode *subRoot, bool answer);
};