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题解 | #孩子们的游戏(圆圈中最后剩下的数)#

import java.util.*; public class Solution { public int LastRemaining_Solution(int n, int m) { Queue<Integer> que = new LinkedList<...

Java 数组

2022-02-13

0 331

题解 | #左旋转字符串非常简单#

public class Solution { public String LeftRotateString(String str,int n) { //特殊情况 if(str.equals("") || n == 0){ return str...

Java 字符串

2022-02-13

1 348

题解 | #和为S的连续正数序列#

import java.util.ArrayList; public class Solution { public ArrayList<ArrayList<Integer> > FindContinuousSequence(int sum) { Ar...

Java 数组双指针枚举

2022-02-13

0 292

题解 | #丑数小根堆的应用#

import java.util.*; public class Solution { public int GetUglyNumber_Solution(int index) { if(index <= 6){ return index; ...

Java 堆(优先队列)

2022-02-13

0 411

题解 | #字符串的排列#

import java.util.*; public class Solution { static ArrayList<String> list = new ArrayList<String>(); static int count = 0; public ...

Java 字符串递归

2022-02-13

0 296

题解 | #序列化二叉树#

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

Java 二叉树广度优先搜索

2022-02-13

0 321

题解 | #二叉搜索树的后序遍历序列重点在于扣边界条件#

import java.util.*; public class Solution { public boolean VerifySquenceOfBST(int [] sequence) { if(sequence.length == 0){ return false; ...

Java 二叉树递归

2022-02-12

0 400

题解 | #对称的二叉树递归#

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

Java 二叉树递归

2022-02-12

0 266

题解 | #二叉树中和为某一值的路径(二)#

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

Java 二叉树

2022-02-12

0 331

题解 | #从上往下打印二叉树#

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

Java 二叉树

2022-02-12

0 379