2)#include <cstdlib>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
int i,a=0,b=1,c,n;
cout<<"enter a number:";
cin>>n;
if (n>0) cout<<"\n"<<a<<" ";
if (n>1) cout<<b<<" ";
for(i=3;i<=n;i++)
{c=a+b;
cout<<c<<" ";
a=b;
b=c;}...