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题解 | #把数组排成最小的数贪心算法#

import java.util.*; public class Solution { public String PrintMinNumber(int [] numbers) { if(numbers.length == 0){return "";} St...

Java 贪心

2022-02-14

3 637

题解 | #扑克牌顺子#

import java.util.*; public class Solution { public boolean IsContinuous(int [] numbers) { HashSet<Integer> set = new HashSet<Inte...

Java 数学哈希表

2022-02-14

0 260

题解 | #剪绳子（进阶版）快速幂#

import java.util.*; public long cutRope (long number) { // write code here if(number <= 3){ return number - 1; } long time...

Java 数学

2022-02-13

0 354

题解 | #剪绳子（进阶版）快速幂#

import java.util.*; public long cutRope (long number) { // write code here if(number <= 3){ return number - 1; } long time...

Java 数学

2022-02-13

0 427

题解 | #字符流中第一个不重复的字符#

import java.util.*; public class Solution { //Insert one char from stringstream //HashMap判断是否重复 //队列Que给出第一个不重复的字符 static HashMap<C...

Java 哈希表单调队列

2022-02-13

0 382

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

0 336

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

1 353

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

0 296

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

0 413

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

0 298