神游星宇

题解

/ 注册

全部文章 / 题解（共26篇）

题解 | #平衡二叉树#

public class Solution { public int F(TreeNode root){ if(root==null) return 0; int left=0,right=0,re = 1; if(root.left...

Java

2021-10-17

0 329

题解 | #判断二叉树是否对称#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Sol...

Java

2021-10-17

0 429

题解 | #二叉树中的最大路径和#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Sol...

Java

2021-10-17

0 354

题解 | #二叉树根节点到叶子节点的所有路径和#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Sol...

Java

2021-10-16

0 432

题解 | #二叉树的最大深度#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Sol...

Java

2021-10-15

0 280

题解 | #将升序数组转化为平衡二叉搜索树#

import java.util.*; /* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * } */ public class Solu...

Java

2021-10-15

0 319

题解 | #主持人调度#

import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * 计算成功举办活动需要多少名主持人 * @param n int整型有n个活动 ...

Java

2021-10-14

0 420

题解 | #数组中相加和为0的三元组#

import java.util.*; public class Solution { public ArrayList<ArrayList<Integer>> threeSum(int[] num) { ArrayList<ArrayList&...

Java

2021-10-13

0 377

题解 | #回文数字#

import java.util.*; public class Solution { /** * * @param x int整型 * @return bool布尔型 */ public boolean isPalindrome (i...

Java

2021-10-12

0 304

题解 | #字符串的排列#

import java.util.ArrayList; import java.util.Set; import java.util.HashSet; public class Solution { public void F(int depth,char[] fina,int[] used...

Java

2021-10-12

0 384