首页 > 代码库 > [leetcode]Same Tree
[leetcode]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.
算法思路:
思路1:判断两棵树是否一样,可以根据中序遍历+前(后)序遍历序列得到。
实现略。
思路2:dfs判断
1 public class Solution {2 public boolean isSameTree(TreeNode p, TreeNode q) {3 if(p == null && q == null) return true;4 if((q == null && p != null ) || (p == null && q != null ) || p.val != q.val) return false;5 return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);6 7 }8 }
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。