//******************************************************************
// Temperatures program
// This program inputs one month's temperature readings from a file,
// deletes spurious readings of 200 degrees from a faulty sensor,
// and outputs the values in sorted order
//******************************************************************
#include <fstream>    // For file I/O
#include "list.h"     // For List class
 
using namespace std;
 
int main()
{
    List temps;         // List of temperature readings
    int  oneTemp;       // One temperature reading
    ifstream inData;    // File of temperature readings
    int limit;          // The number of readings
    ofstream outData;   // Output file
 
    inData.open("temps.dat");
    if ( !inData )
    {
        outData << "Can't open file temps.dat" << endl;
        return 1;
    }
    
    outData.open("temps.ans");
 
    // Get temperature readings from file
 
    inData >> oneTemp;
    while (inData && !temps.IsFull())
    {
        temps.Insert(oneTemp);
        inData >> oneTemp;
    }
    
    // Output original list 
    
    temps.Reset();                      // Set up for an iteration
    limit = temps.Length();             // Get number of items
    outData << "No. of readings: " << limit << endl;
    outData << "Original list:" << endl;
   
    for (int count = 0; count < limit; count++)
    {
        oneTemp = temps.GetNextItem();
        outData << oneTemp << endl;
    }    
 
    // Discard spurious readings of 200 degrees 
    
    while ( !temps.IsEmpty() && temps.IsPresent(200))
        temps.Delete(200);
        
    temps.SelSort();                    // Sort list
 
    // Output sorted list
    
    temps.Reset();                      // Set up for an iteration
    limit = temps.Length();             // Get number of items
    outData << "No. of valid readings: " << limit << endl;   
    outData << "Sorted list:" << endl;

    for (int count = 0; count < limit; count++)
    {
        oneTemp = temps.GetNextItem();
        outData << oneTemp << endl;
    }    
    inData.close();
    outData.close();
    return 0;
}