Stut.net

A friend of mine is doing a programming course at the moment and he had this problem to solve today.
He was doing it in Pascal as specified by the requirements but I was working in C# at the time and came up with this solutions.
It was a nice distraction for a few minutes.

Specification

An amateur athletics club wishes to analyse its members’ performances in various events.
A particular requirement is for a program that will calculate the race performances of individual runners and has the following specification:

• The user will enter an unspecified number of finish times;
• The program must accommodate long and short races, so times will be entered in hours, minutes, seconds and hundredths of seconds;
• Entering a zero time will signal the end of data entry and the program will then calculate and display the:
  • Fastest (i.e. smallest) time;
  • Average of all of the times;
  • Slowest time.
• On completion of the above, the user will be offered the choice of processing further times or quitting the program.

My solution

using System;

namespace DefaultNamespace
{
class MainClass
{
public static void Main(string[] args)
{
MainClass m = new MainClass();
while(m.Run());
}

public bool Run()
{
Int32 current = -1;
Int32 fastest = Int32.MaxValue;
Int32 slowest = 0;
Int32 total = 0;
Int32 resultcount = 0;

Console.WriteLine(“\nAthletics Club Calculator\n\nEnter all zeros to end\n”);

while (current != 0)
{
try
{
current = ToMilliseconds(GetInput(“Hours”), GetInput(“Minutes”), GetInput(“Seconds”), GetInput(“Hundreths”));
if (current > 0)
{
if (current > slowest)
slowest = current;
if (fastest > current)
fastest = current;
total = total + current;
resultcount++;
}
Console.WriteLine(“”);
}
catch
{
Console.WriteLine(“Please enter whole numbers only. Starting again…”);
current = -1;
}
}
if (resultcount > 0)
{
Console.WriteLine(“Fastest: ” + Display(fastest));
Console.WriteLine(“Slowest: ” + Display(slowest));
Console.WriteLine(“Average: ” + Display(total / resultcount));
}
else
Console.WriteLine(“No results were entered”);

// Run again?
Console.Write(“\nEnter another set of results? (y/n) “);
if (Console.ReadLine().Trim().CompareTo(“y”) == 0)
return true;
return false;
}

private Int32 GetInput(string strPrompt)
{
Console.Write(strPrompt + “: “);
return Convert.ToInt32(Console.ReadLine().Trim());
}

private Int32 ToMilliseconds(Int32 hours, Int32 minutes, Int32 seconds, Int32 hundreths)
{
return ((hours * 60 * 60 * 1000) + (minutes * 60 * 1000) + (seconds * 1000) + (hundreths * 10));
}

private string Display(Int32 ms)
{
Int32 hours, minutes, seconds, hundreths;

minutes = ms % (60 * 60 * 1000);
hours = ms / (60 * 60 * 1000);

seconds = minutes % (60 * 1000);
minutes = minutes / (60 * 1000);

hundreths = seconds % 1000;
seconds = seconds / 1000;

hundreths = hundreths / 10;

return hours.ToString(“00″) + “:” + minutes.ToString(“00″) + “:” + seconds.ToString(“00″) + “.” + hundreths.ToString(“000″);
}
}
}