下面是java代码: 递归的: 1/**2* Definition for a binary tree node.3* public class TreeNode {4* int val;5* TreeNode left;6* TreeNode right;7* TreeNode(int x) { val = x; }8* }9*/10publicclassSolution {11publicbooleanisSameTree(TreeNode p, TreeNode q) {12if(p ==null&& q ...
3- 如果两个点都不是null, 并且它们的值不相等,return false; 剩下的情况就是它们两个点的值是相等的,把它们left 和 right children继续代入isSameTree function, 利用 && 来控制,一个点的left 和 right 返回的都是true,这个点返回的才是true。 Java Solution: Runtime beats 23.17% 完成日期:07/01/2017 ...
* Definition for binary tree * 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...
100. 相同的树 - 给你两棵二叉树的根节点 p 和 q ,编写一个函数来检验这两棵树是否相同。 如果两个树在结构上相同,并且节点具有相同的值,则认为它们是相同的。 示例 1: [https://assets.leetcode.com/uploads/2020/12/20/ex1.jpg] 输入:p = [1,2,3], q = [1,2,
* TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */classSolution{public:boolisSameTree(TreeNode*p,TreeNode*q){if(p==NULL&&q==NULL)returntrue;if(p==NULL&&q!=NULL||p!=NULL&&q==NULL)returnfalse;if(p->val!=q->val)returnfalse;returnisSameTree(p->left,q->left...
# Definition for a binary tree node. # class TreeNode: # def __init__(self, val=0, left=None, right=None): # self.val = val # self.left = left # self.right = right class Solution: def isSameTree(self, p: Optional[TreeNode], q: Optional[TreeNode]) -> bool: # 都是空结点...
* public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */ public class Solution { //比较俩二叉树相等,只需根节点,左子树和右子树三者都相等.否则,就是不相等 public boolean isSameTree(TreeNode p, TreeNode q) { //1,边界...
classSolution{public:boolisSameTree(TreeNode*p,TreeNode*q){if(p==NULL||q==NULL)return(p==q);return(p->val==q->val&&isSameTree(p->left,q->left)&&isSameTree(p->right,q->right));}}; Java,思路同上 publicbooleanisSameTree(TreeNode p,TreeNode q){if(p==null&&q==null)returntrue...
Start traversing the tree and each node should return a vector to its parent node. 提示2 The vector should be of length 26 and have the count of all the labels in the sub-tree of this node. 评论(133) 预览评论 💡 讨论区规则
代码: class Solution { public boolean isSameTree(TreeNode p, TreeNode q) { if (p==null&&q==null){ return true; } if ((p==null&&q!=null)||(p!=null&&q==null)){ return fal 名字是乱打的 2022/05/13 3620 LeetCode 100 及 101题 二叉树java编程算法 输入: 1 1 / \ 2 2 [1,...