/*Assumptions:
* This system is based on the following assumptions.
* 1. The numbers in the input file are all valid. Program doesnt check for validity
* Validity means - if a number is of a valid base(base < the base of the system),
* then it is expressed using symbols of that base only.
*
* 2.If any number is having a base greater than the base of the system, the system just shuts down.
* 3.If any number is expressed using symbols which the system doesnt understand, the system just shuts down.
* 4.If any of the file is not found in the given path, the system shuts down.
* 5.This uses in-place partition method.
* 6.The QuickSelect method has been exposed in two different ways. One is as per the problem statment and another is
* just as QuickSelect(int k) as the instance of the numbersystem would have all other information like numbers[], size *
*/
//Sample execution commands
/*
* // Valid passes
* mono NumberSystem.exe ./files/File1.txt ./files/File2.txt 3 ./files/File3.txt
* O/P:Press enter to exit
* mono NumberSystem.exe ./files/File1.txt ./files/File2.txt 1 ./files/File3.txt
* mono NumberSystem.exe ./files/File1.txt ./files/File2.txt 2 ./files/File3.txt
* // k > size/base of the number system
* mono NumberSystem.exe ./files/File1.txt ./files/File2.txt 15 ./files/File3.txt
*
* //Invalid base detected
* mono NumberSystem.exe ./files/File1.txt ./files/Fie2_Invalid_base.txt 3 ./files/File3.txt
O/P : Base of input cant be greater than base of the system
Press enter to exit
* //Invalid characters detected
* mono NumberSystem.exe ./files/File1.txt ./files/Fie2_Invalid_characters.txt 3 ./files/File3.txt
O/P:Input sequence has some unrecognizable numbers
Press enter to exit
*/
static void Main(string[] args)
{
string baseFilePath, numberFilePath, resultFilePath;
int k;
try
{
baseFilePath = args[0];
numberFilePath = args[1];
resultFilePath = args[3];
k = Int32.Parse(args[2]);
NumberSystem numberSystem = new NumberSystem();
numberSystem.InitializeBase(baseFilePath);
numberSystem.CreateNumbers(numberFilePath);
if (k > numberSystem.numbers.Count)
k = numberSystem.numbers.Count / 2;
numberSystem.PrintNumber(resultFilePath, numberSystem.QuickSelect(k));
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine("Press enter to exit");
Console.ReadKey();
}
public void Init(string numberFilePath = @"..\..\..\files\File2.txt")
{
numberSystem = new NumberSystem();
numberSystem.InitializeBase(@"..\..\..\files\File1.txt");
numberSystem.CreateNumbers(numberFilePath);
}