// Program: ex1d_template.cpp
// Author: ...

#include <iostream>

// PRE: [begin, end) is a valid range
// POST: returns the length of the longest non-decreasing subrange
//       in [begin, end)
unsigned int longest_nondecr_subrange (const int* begin, const int* end)
{
  // [Your code ...]
}

int main ()
{
  // Input
  const unsigned int len = 20;
  int nbrs[len];
  std::cout << "Input " << len << " numbers: ";
  for (int* i = nbrs; i < nbrs + len; ++i)
    std::cin >> *i;
  
  // Output
  std::cout << "Length of longest non-decreasing subrange: "
            << longest_nondecr_subrange(nbrs, nbrs + len) << "\n";
  
  return 0;
}