Problem with the complexity of the program 2011

[Vuhelper]

Code:

#include <iostream.h> int ver(int a){ while(a%2==0) a=a/2; while(a%3==0) a=a/3; while(a%5==0) a=a/5 if(a==1) return 1; else return 0;} void main(){ int n,i; i=1; cin>>n; cout<<endl; while(n!=0){ if(ver(i)==1){ cout<<i<<" "; n--;} i++;}}