Răspuns:
1.
#include <iostream>
using namespace std;
int main()
{
int n,i,s=0,p=1;
cout<<"n=";
cin>>n;
for(i=1;i<=n;i=i+2)
{s=s+i;
p=p*i;}
cout<<s<<" "<<p;
}
2.
#include <iostream>
using namespace std;
int main()
{
int n,i,s=0,p=1;
cout<<"n=";
cin>>n;
for(i=2;i<=n;i=i+2)
{s=s+i;
p=p*i;}
cout<<"suma:"<<s<<" "<<"produsul:"<<p;
}
Explicație:
