c++ STL istream_iterator<> demo

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main()
{
istream_iterator<int> is(cin);
istream_iterator<int> eof;
vector<int> ivec;
copy(is, eof, back_inserter(ivec));
sort(ivec.begin(), ivec.end());

ostream_iterator<int> os(cout, " ");
copy(ivec.begin(), ivec.end(), os);

getchar();
return 0;
}