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Same Tree
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(null == p && null == q)13 return true;14 if(null == p || null == q)15 return false;16 else{17 return p.val == q.val && isSameTree(p.left, q.left) && isSameTree(p.right, q.right);18 }19 }20 }
Same Tree
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