set01.cs

// =========== Edit Student Detail Here ============
// Program: set01.cs
// RankId: 09
// Author: Komkanit Sujautra
// Id: 5810500412
// Group: 1/11
// Date: 17/9/2015
//===================================================
using System;
class set{
	public static void Main()
	{
		char cut = ' ';
		string a,b;
		int [] sa = new int[100];
		int [] sb = new int[100];
		int [] uni = new int[100];
		int [] inter = new int[100]; 
		int [] minus = new int[100];
		int i,j,len,len2,lenu,leni = 0,lenm = 0,c = 0,d = 0;
		Console.Write("Input set A: ");
		a = Console.ReadLine();
		Console.Write("Input set B: ");
		b = Console.ReadLine();
		
		string [] str = a.Split(cut);
		len = str.Length;
		for(i=0 ; i<len ; i++)
		{
			sa[i] = int.Parse(str[i]);
			if(sa[i] > 99 || sa[i] <0)
			c = 1;
		}

		string [] str2 = b.Split(cut);
		len2 = str2.Length;
		for(i=0 ; i<len2 ; i++)
		{
			sb[i] = int.Parse(str2[i]);
			if(sb[i] > 99 || sb[i] <0)
			d = 1;
		}
		if(c == 1)
		{
			Console.Write("Input Error: ");
			for(i=0 ; i<len ; i++)
			{
				if(sa[i] > 99 || sa[i] <0)
					Console.Write("<{0}> ",sa[i]);
				else
					Console.Write("{0} ",sa[i]);
			}
			Console.WriteLine("");
		}

		if(d == 1)
		{
			Console.Write("Input Error: ");
			for(i=0 ; i<len2 ; i++)
			{
				if(sb[i] > 99 || sb[i] <0)
					Console.Write("<{0}> ",sb[i]);
				else
					Console.Write("{0} ",sb[i]);
			}
			Console.WriteLine("");
		}
		if(c==0 && d==0)
		{
			for(i = 0 ; i < len ; i++)
			{
				uni[i] = sa[i];
				for(j = 0 ; j <len2 ; j++)
				{
					if(sa[i] == sb[j])
						break;
				}
				if(j == len2)
				{
					minus[lenm] = sa[i];
					lenm++;
				}
			}
			lenu = len;
			for(i = 0 ; i < len2 ; i++)
			{
				for(j = 0 ; j < len ; j++)
				{
					if(sb[i] == sa[j])
					{
						inter[leni] = sb[i];
						leni++;
						break;
					}
				}
				if(j == len)
				{
					uni[lenu] = sb[i];
					lenu++;
				}
			}
			Console.Write("A union B: ");
			if(lenu != 0)
			for(i=0 ; i<lenu ; i++)
				Console.Write(uni[i]+ " ");
			else
				Console.Write("Empty Set");
			Console.WriteLine("");

			Console.Write("A intersect B: ");
			if(leni !=0)
				for(i=0 ; i<leni ; i++)
					Console.Write(inter[i]+ " ");
			else
				Console.Write("Empty Set");
			Console.WriteLine("");

			Console.Write("A minus B: ");
			if(lenm != 0)
				for(i=0 ; i<lenm ; i++)
					Console.Write(minus[i]+ " ");
			else
				Console.Write("Empty Set");
			Console.WriteLine("");
		}
		

	}
}