裴波那切数列求和---c++

#include <iostream>#include <vector>using namespace std;int peibo(int n){    if(n==1) return 0;    if(n==2) return 1;    else return peibo(n-1)+peibo(n-2);}int main(){    int n;    while(cin>>n)    {        int sum=0;        cout<<"每一项是"<<endl;        for(int i=1; i<=n; i++)        {            cout<<peibo(i)<<" ";            sum+=peibo(i);        }        cout<<"和是"<<sum<<endl;    }}