// Program: ex1b_template.cpp
// Author: ...

#include <iostream>
#include <vector>
#include <cassert>

typedef std::vector<int>::iterator Vit;
typedef std::vector<int>::const_iterator Cvit;

// PRE: [begin, end) is a valid non-empty range
// POST: returns the value of the largest element in [begin, end)
int find_max (Cvit begin, Cvit end)
{
  // [Your code ...]
}

int main ()
{
  // Input
  std::cout << "Length =? ";
  unsigned int len;
  std::cin >> len;
  
  std::cout << "Input numbers: ";
  std::vector<int> numbers (len);
  for (Vit i = numbers.begin(); i < numbers.end(); ++i)
    std::cin >> *i;
  
  // Output max
  std::cout << "Maximum = " << find_max(numbers.begin(), numbers.end()) << "\n";
  
  return 0;
}