Check if Tree is Isomorphic

/*Complete the function below
Node is as follows:
struct Node {
    int data;
    Node *left;
    Node *right;

    Node(int val) {
        data = val;
        left = right = NULL;
    }
};
*/

class Solution{
  public:
    // Return True if the given trees are isomotphic. Else return False.
    bool isIsomorphic(Node *root1,Node *root2)
    {
       if(!root1 || !root2) {if(!root1 && !root2) return 1; return 0;}
       if(root1->data!=root2->data) return 0;
       return (isIsomorphic(root1->left,root2->left)&&isIsomorphic(root1->right,root2->right)) || (isIsomorphic(root1->left,root2->right)&&isIsomorphic(root1->right,root2->left));
    }

};