// Code derived from Stroustrup's PPP2 book
// § 5.7 Logic errors
//  -and beginning on p 156

#include <iostream>

using std::cin;
using std::cout;

int main()
{
  cout << "Please enter temperatures: (enter '|' to stop):\n";

  double sum         = 0;
  double high_temp   = -1000;  // initialize to impossibly low
  double low_temp    = 1000;   // initialize to “impossibly high”
  int    no_of_temps = 0;

  for (double temp; cin >> temp;) {  // read a temp
    ++no_of_temps;                   // count temperatures
    sum += temp;                     // compute sum

    if (temp > high_temp)  // record high
      high_temp = temp;    //
                           //
    if (temp < low_temp)   // record low
      low_temp = temp;     //
  }

  cout << "High temperature: " << high_temp << '\n';
  cout << "Low temperature: " << low_temp << '\n';
  cout << "Average temperature: " << sum / no_of_temps << '\n';
}