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题解 | 牛牛的快递

#include <iostream> using namespace std; int main() { double a; int res=20; char c; cin>>a>>c; if(c =='y') res+...

2025-07-04

0 15

题解 | #明明的随机数#

#include <iostream> #include <vector> #include <algorithm> using namespace std; int main() { int n; cin >> n; vect...

2023-09-13

1 225

题解 | #返回小于 N 的质数个数#

#include <iostream> using namespace std; bool isPrime(int n){ for(int i=2;i<n;i++){//如果n被i整除，则返回false if(n%i==0){ re...

2023-07-03

1 287

题解 | #针对actor表创建视图

create view actor_name_view as select first_name as first_name_v,last_name as last_name_v from actor;

2023-05-04

1 214