/// @file
/// @brief task C: function templates

#pragma once

#include <vector>

namespace two {

/// @todo: implement ONE function template covering the function overloads 'one::add'
/// @todo: implement ONE function template covering the function overloads 'one::sum'

template <typename T>
T add(const T& a, const T& b) {
  return a + b;
}

template <typename T>
T sum(const std::vector<T>& vec) {
  T res = 0;
  for (T x : vec) {
    res += x;
  }
  return res;


} // namespace two