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题解 | #十进制整数转十六进制字符串#

#include <string> using namespace std; #include<algorithm> string toHexString(int n); //该函数可以将10进制转换为任意的radix进制数，n是要转换的十进制数 string intToA(...

2022-06-18

0 434

题解 | #个人所得税计算程序#

// write your code here...... #include<algorithm> #include<vector> #include<iomanip> using namespace std; class Employee { pri...

2022-06-16

0 353

题解 | #判断元素是否出现#

#include<bits/stdc++.h> #include<map> using namespace std; int main(){ //write your code here...... map<int,string>ma; int n,m...

2022-04-18

0 305

题解 | #查找# 来自专栏

#include<bits/stdc++.h> using namespace std; int main(){ set<int>s; //write your code here...... int n,m,x,a; cin>>n>>m...

2022-04-18

6 364

题解 | #去除字符串中重复的字符#

#include <iostream> // write your code here...... #include<set> using namespace std; int main() { char str[100] = { 0 }; cin.get...

2022-04-18

0 287

题解 | #返回每个顾客不同订单的总金额#

使用右连接，以Orders表为基准 select cust_id,sum(item_price*quantity)as total_ordered from OrderItems a right join Orders b on a.order_num=b.order_num group by c...

2022-04-17

0 248

题解 | #最后k个元素#

#include<bits/stdc++.h> using namespace std; int main(){ int n,k; vector<int>a; // write your code here...... cin>>n>>k...

2022-04-17

0 323

题解 | #智能排队系统#

#include <iostream> #include <deque> using namespace std; class Guest { public: string name; bool vip; Guest(string name, bo...

2022-04-17

0 296

题解 | #多态实现求面积体积#

#include<bits/stdc++.h> using namespace std; class rectangle{ private: int length,width; public: rectangle(int x,int y){ length=x; w...

2022-04-17

0 270

题解 | #返回购买 prod_id 为 BR01 的产品的所有顾客的电子邮件（一）#

嵌套查询多结果in select cust_email from Customers where cust_id in( select cust_id from Orders where order_num in( select order_num ...

2022-04-16

0 329