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全部文章 / 题解（共155篇）

题解 | #操作符混合运用#

select device_id,gender,age,university,gpa from user_profile where gpa>3.5 and university="山东大学" OR gpa>3.8 and university="复旦大学";

Mysql

2021-11-01

0 258

题解 | #Where in 和Not in#

SELECT device_id,gender,age,university,gpa from user_profile where university in (SELECT university from user_profile where university="北京大学" or univ...

Mysql

2021-11-01

1 731

题解 | #高级操作符练习(2）#

select device_id,gender,age,university,gpa from user_profile where university="北京大学" or gpa>3.7;

Mysql

2021-11-01

0 391

题解 | #高级操作符练习(1)#

SELECT device_id,gender,age,university,gpa from user_profile where gender="male" and gpa>3.5;

Mysql

2021-11-01

0 482

题解 | #判断链表中是否有环#

/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} ...

C++

2021-10-31

0 244

题解 | #回文数字#

class Solution { public: /** * * @param x int整型 * @return bool布尔型 */ bool isPalindrome(int x) { long result; ...

C++

2021-10-29

0 299

题解 | #反转数字#

class Solution { public: /** * * @param x int整型 * @return int整型 */ int reverse(int x) { int shu[33]; lon...

C++

2021-10-29

0 338

题解 | #旋转数组的最小数字#

class Solution { public: int minNumberInRotateArray(vector<int> rotateArray) { int i; int min=rotateArray[0]; for(i=...

C++

2021-10-25

0 325

题解 | #用两个栈实现队列#

class Solution { public: void push(int node) { stack1.push(node); } int pop() { int result; while(stack1...

C++

2021-10-24

0 324

题解 | #包含min函数的栈#

//使用两个栈实现min函数 class Solution { public: stack<int> S; stack<int> S2; void push(int value) { S.push(value); } v...

C++

2021-10-22

0 414