Problema 11
#include <iostream>
using namespace std;
int main() {
float sum=0;
int n=0;
int s=1;
cout<<"N = ";
cin>>n;
for (int i=2;i<n;i++){
sum=sum+1.0/i;
}
cout <<"Sum = "<< setprecision(3) << sum << endl;
system("pause");
return 0;}
Problema 12 (scrie tu deja inceputul prog. si sfarsitul)
for(i=1, s=0; i<=n; i++) {
for(j=0, p=1; j <= i; j++)
p*=(i+j);
s+= p;
}
Problema 13
#include <iostream>
using namespace std;
int main ()
double A, S, P;
int i, N;
N=8;
S=0;
P=1;
for (i=1; i<=N; i++)
{
printf("Numar > ");
scanf("%lf", &A);
if (A>0)
S=S+A;
else if (A<0)
P=P*A;
}
printf("S=%lf P=%lf", S, P);
system("pause");
return 0;
}
