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题解 | #出现三次以上相同积分的情况#

SELECT e.number FROM ( SELECT number, count(number) as cnt FROM grade GROUP BY number ) e WHERE e.cnt >...

Mysql

2021-09-22

0 448

题解 | #获得积分最多的人(一)#

SELECT t1.name name, t1.grade_sum grade_sum FROM ( SELECT t.name as name, sum(t.gnum) as grade_sum FRO...

Mysql

2021-09-21

0 511

题解 | #牛客的课程订单分析(三)#

select t.id, t.user_id, t.product_name, t.status, t.client_id, t.date from ( select *, count(*) over(partition by user_id) as...

Sqlite

2021-09-21

0 499

题解 | #计数器#

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

Java

2021-09-19

0 556

题解 | #拓扑结构相同子树#

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

Java

2021-09-19

0 477

题解 | #拓扑结构相同子树#

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

Java

2021-09-19

0 625

题解 | #香槟塔#

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

Java

2021-09-18

0 647

题解 | #买房#

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

Java

2021-09-18

0 627

题解 | #买房#

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

Java

2021-09-18

0 641

题解 | #翻转翻转#

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

Java

2021-09-18

0 516