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题解 | #判断是不是完全二叉树#

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

2023-04-13

1 222

题解 | #判断是不是二叉搜索树#

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

2023-04-13

1 145

题解 | #二叉树的镜像#

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

2023-04-12

1 255

题解 | #合并二叉树#

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

2023-04-11

1 175

题解 | #对称的二叉树#

/* public class TreeNode { int val = 0; TreeNode left = null; TreeNode right = null; public TreeNode(int val) { this.val = va...

2023-04-11

1 216

题解 | #二叉树中和为某一值的路径(一)#

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

2023-04-07

1 200

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...

2023-04-07

1 185

题解 | #按之字形顺序打印二叉树#

import java.util.ArrayList; import java.util.LinkedList; import java.util.Queue; import java.util.Collections; /* public class TreeNode { int val...

2023-04-07

1 176

题解 | #求二叉树的层序遍历#

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

2023-04-07

1 222

题解 | #二叉树的后序遍历#

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

2023-04-07

1 207