stream iterator adaptor(istream_iterator, ostream_iterator) demo

#include <iostream>#include <vector>#include <string>#include <algorithm>#include <iterator>using namespace std;int main(){    vector<string> svec;    istream_iterator<string> is(cin);    istream_iterator<string> end_of_stream;    copy(is, end_of_stream, back_inserter(svec));    ostream_iterator<string> os(cout, " ");    copy(svec.begin(), svec.end(), os);    return 0;}