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[Leetcode] Same Tree
Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.
1 /** 2 * Definition for binary tree 3 * public class TreeNode { 4 * int val; 5 * TreeNode left; 6 * TreeNode right; 7 * TreeNode(int x) { val = x; } 8 * } 9 */10 public class Solution {11 public boolean isSameTree(TreeNode p, TreeNode q) {12 if(p==null&&q==null)13 return true;14 if(p==null||q==null)15 return false;16 if(p.val!=q.val)17 return false;18 return isSameTree(p.left, q.left)&&isSameTree(p.right, q.right);19 }20 }
[Leetcode] Same Tree
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