【LeetCode】 100. Same Tree
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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.
/** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */public class Solution { public boolean isSameTree(TreeNode p, TreeNode q) { if (p == null && q == null) { return true; } if (p == null || q == null) { return false; } if (p.val == q.val) { return isSameTree(p.left, q.left) && isSameTree(p.right, q.right); } return false; }} 0 0
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