Question

求帮助，怎么用C++编写一个DDE服务器

Answer 1

LS是C语言的，那我来个C++版本吧
第一题：
#include<iostream>

using namespace std;

int fac(int n);

int main()
{
cout<<"Please enter n: ";
int n;
cin>>n;

int result=0;
for(int i=1;i<=n;i++)
result+=fac(i);
cout<<"The answer is "<<result<<endl;
}

int fac(int n)
{
if(n==1)
return 1;
return n*fac(n-1);
}
第二题：
#include<iostream>

using namespace std;

int main(){
cout<<"Please enter a integer: ";
int in;
cin>>in;

int p=0,sum=0;
int lp;
while(lp=in%10){
p++;
sum+=lp;
in/=10;
}
cout<<"There are "<<p<<" places in this integer"<<endl;
cout<<"And the sum of each places is "<<sum<<endl;
}