Program to compute fibonacci series

#include<iostream>

using namespace std;

int main()
{   int first=0,second=1,i,third,n;
    cout<<"Upto which number u want to find out fibonacci series ?""\n";
    cin>>n;
    cout<<"The fibonacci series of "<<n<<" is"<<"\n"<<first<<"\n"<<second<<"\n";
    for(i=1;i<n;i++)
    {
                third=first+second;
                cout<<third<<"\n";
                first=second;
                second=third;
               
                }
                system("pause");
                return 0;
}
               
 

Program to compute fibonacci series