题解 | #阶乘计算#
阶乘计算
https://ac.nowcoder.com/acm/problem/22205
#include <iostream>
``` js
int main() { std::cout << "Hello World!"; return 0; }
``` java []
class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
print('Hello world!')
using namespace std;
int main()
{
int sum=1;
int sum2=0;
int n;cin>>n;
for(int i=1;i<=n;i++)
{
sum=sum*i;
sum2=sum2+sum;
}
cout<<sum2;
} []
#include <iostream>
``` c++ []
#include <iostream>
int main() {
std::cout << "Hello World!";
return 0;
}
class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
print('Hello world!')
int main() { std::cout << "Hello World!"; return 0; }
``` java []
class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
print('Hello world!')
