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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...

Java

2022-04-21

0 246

题解 | #字符串通配符#

import java.util.*; public class Main{ public static void main(String[] args){ Scanner scan = new Scanner(System.in); String sour...

Java

2022-04-18

0 313

题解 | #按之字形顺序打印二叉树#

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

Java

2022-04-12

0 253

题解 | #求二叉树的层序遍历#

BFS public ArrayList<ArrayList<Integer>> levelOrder (TreeNode root) { ArrayList<ArrayList<Integer>> list = new Ar...

Java

2022-04-12

0 308

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...

Java

2022-04-12

0 282

题解 | #二叉树的中序遍历#

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

Java

2022-04-12

0 302

题解 | #二叉树的前序遍历#

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

Java

2022-04-12

0 385

题解 | #比较版本号#

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 * * 比较版本号 * @param version1 strin...

Java

2022-04-11

0 326

题解 | #旋转数组的最小数字#

import java.util.ArrayList; public class Solution { public int minNumberInRotateArray(int [] nums) { int l = 0, r = nums.length - 1; ...

Java

2022-04-11

0 286

题解 | #数组中的逆序对#

public class Solution { public final long mod = 1000000007; private int ans = 0; // 在进行归并的时查看是否存在逆序! public int InversePairs(int [] ar...

Java

2022-04-11

0 294