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 ...
publicbooleanisSameTree(TreeNode p, TreeNode q) {if(p ==null|| q ==null) {returnp == q; }booleanf = p.val== q.val;booleanf2 =isSameTree(p.left, q.left);booleanf3 =isSameTree(p.right, q.right);returnf && f2 && f3; } 03 小结...
using namespace std; struct TreeNode { int val; TreeNode *left; TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) {} }; class Solution { public: bool isSameTree(TreeNode *p, TreeNode *q) { if (p == NULL && q == NULL) return true; // p和q不同一时候...
* int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ #include <queue> class Solution { public: bool isSameTree(TreeNode* p, TreeNode* q) { queue<TreeNode*> Q1,Q2; TreeNode *pCurr,*qCurr; int flag = true;...
1519. 子树中标签相同的节点数 - 给你一棵树(即,一个连通的无环无向图),这棵树由编号从 0 到 n - 1 的 n 个节点组成,且恰好有 n - 1 条 edges 。树的根节点为节点 0 ,树上的每一个节点都有一个标签,也就是字符串 labels 中的一个小写字符(编号为 i 的 节点的标签就
Given the roots of two binary treespandq, 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. Example 1: Input:p = [1,2,3], q = [1,2,3]Output:true ...
/** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution { public: bool isSameTree(TreeNode* p, TreeNode* q) { if(!p && !q) { ...
500+ LeetCode Problems Solved in C++ - A repository with concise C++ solutions to over 500 LeetCode problems, perfect for preparing for coding interviews. - DSA-LeetCode/100-same-tree/NOTES.md at 31baa7cee7e6b0c8d68e06df7fca6238bef4274e · AKD-01/DSA-Lee
通过的Java代码如下: /*** Definition for a binary tree node.* public class TreeNode {* int val;* TreeNode left;* TreeNode right;* TreeNode(int x) { val = x; }* }*/classSolution{publicbooleanisSameTree(TreeNodep,TreeNodeq){if(p==null&&q==null){returntrue;}elseif(p==null&&q...
技术标签: LeetCode Dynamic Programming LeetCode JavaYou have a pointer at index 0 in an array of size arrLen. At each step, you can move 1 position to the left, 1 position to the right in the array or stay in the same place (The pointer should not be placed outside the array at...