My C solution

  • 0
    bool isSameTree(struct TreeNode* p, struct TreeNode* q) {
        if (p == NULL && q == NULL)
            return true;
        else if (p != NULL && q != NULL) {
            if (p->val != q->val)
                return false;
            return isSameTree(p->left, q->left) && isSameTree(p->right, q->right); 
            return false;

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