//
// Example of using STL accumulate:  compute product of a sequence
//   of numbers.
//
#include <iostream.h>
#include <stdlib.h>             // has EXIT_SUCCESS
#include <vector>
#include <numeric>		// has accumulate()
#include <functional>		// has multiplies<int>()

int main(void) {

  cout << "Enter some numbers, ctrl-D to end:\n";
  vector<int> v;
  int temp;

  while (cin >> temp)
    v.push_back(temp);

  // Notice use of STL "multiplies" template function.
  // What we do here is compute the product of the numbers,
  // so the initial value of the "running total" (product) 
  // should be 1, not 0.
  cout << "product is "
       << accumulate(v.begin(), v.end(), 1, multiplies<int>())
       << endl;

  return EXIT_SUCCESS;
}