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题解 | #左旋转字符串#

import java.lang.*; public class Solution { public String LeftRotateString(String str,int n) { if(str==null||str.length()==0) return "...

Java

2021-09-26

0 327

题解 | #扑克牌顺子#

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

Java

2021-09-20

0 362

题解 | #和为S的两个数字#

import java.util.ArrayList; public class Solution { public ArrayList<Integer> FindNumbersWithSum(int [] array,int sum) { ArrayList&l...

Java

2021-09-20

0 523

题解 | #把字符串转换成整数#

import java.util.*; import java.lang.*; public class Solution { public int StrToInt(String str) { if(str==""||str.length()==0) r...

Java

2021-09-20

0 416

题解 | #求1+2+3+...+n#

public class Solution { public int Sum_Solution(int n) { int res =n; boolean flag=(n>0)&&(res+=Sum_Solution(n-1))>0; ...

Java

2021-09-20

0 423

题解 | #反转链表#

/* public class ListNode { int val; ListNode next = null; ListNode(int val) { this.val = val; } }*/ public class Solution { ...

Java

2021-09-19

0 388

题解 | #从上往下打印二叉树#

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

Java

2021-09-18

0 344

题解 | #把数组排成最小的数#

import java.util.ArrayList; import java.lang.*; import java.util.*; public class Solution { public String PrintMinNumber(int [] numbers) { ...

Java

2021-09-18

0 423

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) { ArrayL...

Java

2021-09-16

0 425

题解 | #栈的压入、弹出序列#

import java.util.ArrayList; import java.util.*; public class Solution { public boolean IsPopOrder(int [] pushA,int [] popA) { if(pushA.lengt...

Java

2021-09-16

0 321