text: /**
   * Same Tree
   *
   * cpselvis(cpselvis@gmail.com)
   * September 1sth, 2016
   */
  
  #include<iostream>
  
  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 == NULL && q == NULL)
      {
        return true;
      }
      if (p == NULL || q == NULL)
      {
        return false;
      }
      if (p -> val == q -> val)
      {
        return isSameTree(p -> left, q -> left) && isSameTree(p -> right, q -> right);
      }
      return false;
    }
  };
  
  int main(int argc, char **argv)
  {
    return 0;
  }
  