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- /**
- * Definition for a binary tree node.
- * public class TreeNode {
- * int val;
- * TreeNode left;
- * TreeNode right;
- * TreeNode(int x) { val = x; }
- * }
- */
- class Solution {
- public boolean isSameTree(TreeNode p, TreeNode q) {
- if (p == null && q == null) return true;
- if (p == null || q == null) return false;
- return ((p.val == q.val) && (isSameTree(p.left, q.left)) && (isSameTree(p.right, q.right)));
- }
- }
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