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题解 | #二叉树的最大宽度#

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

2024-04-12

0 195

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...

2024-04-12

0 198

题解 | #矩阵最长递增路径#

import java.util.*; /** * NC138 矩阵最长递增路径 * @author d3y1 */ public class Solution { private int ROW; private int COL; private int[] dx ...

2024-04-11

0 156

题解 | #岛屿数量#

import java.util.*; /** * NC109 岛屿数量 * @author d3y1 */ public class Solution { private boolean[][] isVisited; private int ROW; private...

2024-04-11

0 166

题解 | #二叉搜索树的第k个节点#

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

2024-04-11

0 152

题解 | #判断一棵二叉树是否为搜索二叉树和完全二叉树#

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

2024-04-10

0 150

题解 | #找到搜索二叉树中两个错误的节点#

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

2024-04-10

0 224

题解 | #重建二叉树#

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

2024-04-10

0 177

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 TreeNode(int v...

2024-04-09

0 190

题解 | #二叉搜索树最小差值#

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

2024-04-09

0 145