// Filename: STL-IO-iterators.cc// Use of istream_iterator and ostream_iterator.#include <iterator>#include <iostream>#include <vector>using namespace std;int main() {    cout << "enter 5 numbers" << endl;    vector<int> d(5);    int  i, sum ;    istream_iterator<int> in(cin);    ostream_iterator<int> out(cout, "\t");    sum = d[0] = *in;                               //input first value    for(i = 1; i < 5; ++i) {        d[i] = *++in;                                 //input consecutive values        sum += d[i];    }    for(i = 0; i < 5; ++i)        *out = d[i] ;                                 //output consecutive values    cout << "\nsum = " << sum << endl;}/*outOOP> gpp STL-IO-iterators.ccOOP> a.outenter 5 numbers1 3 5 7 91       3       5       7       9sum = 25OOP>*/