cpp24 wap to print fibonacci sequence using functions

#include <iostream>
#include<math.h>
using namespace std;

void fib(int n){
    int n1=0;
    int n2=1;
    int nextterm;
    for(int i=1;i<=n;i++){
        cout<<n1<<endl;
        nextterm=n1+n2;
        n1=n2;
        n2=nextterm;
        
    }
    return;
}



int main()
{
    int n;
    cin>>n;
    
    fib(n);

    return 0;
}