[LC] 100. Same Tree

Posted xuanlu

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了[LC] 100. Same Tree相关的知识,希望对你有一定的参考价值。

Given two binary trees, write a function to check if they are the same or not.

Two binary trees are considered the same 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; }
 * }
 */
class Solution {
    public boolean isSameTree(TreeNode p, TreeNode q) {
        if (p == null && q == null) {
            return true;
        } else if (p == null && q != null || p != null && q == null) {
            return false;
        } else if (p.val != q.val) {
            return false;
        }
        return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);
    }
}

 

以上是关于[LC] 100. Same Tree的主要内容,如果未能解决你的问题,请参考以下文章

LeetCode(100):Same Tree

100. Same Tree

100. Same Tree(LeetCode)

100. Same Tree(Tree)

LeetCode100. Same Tree-相同树

[LeetCode] 100. Same Tree ☆(两个二叉树是否相同)