Data commit

Task/Egyptian-division/C-sharp/egyptian-division.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections;
+
+namespace Egyptian_division
+{
+	class Program
+	{
+		public static void Main(string[] args)
+		{
+			Console.Clear();
+			Console.WriteLine();
+			Console.WriteLine(" Egyptian division ");
+			Console.WriteLine();
+			Console.Write(" Enter value of dividend : ");
+			int dividend = int.Parse(Console.ReadLine());
+			
+			Console.Write(" Enter value of divisor : ");
+			int divisor = int.Parse(Console.ReadLine());
+			
+			Divide(dividend, divisor);
+			
+			Console.WriteLine();
+			Console.Write("Press any key to continue . . . ");
+			Console.ReadKey(true);
+			
+			
+			
+		}
+		
+		static void Divide(int dividend, int divisor)
+		{
+			//
+			// Local variable declaration and initialization
+			//
+			int result   = 0;
+			int reminder = 0;
+			
+			int powers_of_two = 0;
+			int doublings 	  = 0;
+			
+			int answer 	= 0;
+			int accumulator = 0;
+			
+			int two = 2;
+			int pow = 0;
+			int row = 0;
+			
+			//
+			// Tables declaration
+			//
+			ArrayList table_powers_of_two = new ArrayList();
+			ArrayList table_doublings     = new ArrayList();
+			
+			//
+			// Fill and Show table values
+			//
+			Console.WriteLine("                           ");
+			Console.WriteLine(" powers_of_2     doublings ");
+			Console.WriteLine("                           ");
+			
+			// Set initial values
+			powers_of_two = 1;
+			doublings = divisor;
+			while( doublings <= dividend )
+			{
+				// Set table value
+				table_powers_of_two.Add( powers_of_two );
+				table_doublings.Add( doublings );
+				
+				// Show new table row
+				Console.WriteLine("{0,8}{1,16}",powers_of_two, doublings);
+				
+				
+				pow++;
+				
+				powers_of_two = (int)Math.Pow( two, pow );
+				doublings = powers_of_two * divisor;
+			}
+			Console.WriteLine("                           ");
+			
+			//
+			// Calculate division and Show table values
+			//
+			row = pow - 1;
+			Console.WriteLine("                                                 ");
+			Console.WriteLine(" powers_of_2     doublings   answer   accumulator");
+			Console.WriteLine("                                                 ");
+			Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop + row);
+			
+			pow--;
+			while( pow >= 0 && accumulator < dividend )
+			{
+				// Get values from tables
+				doublings = int.Parse(table_doublings[pow].ToString());
+				powers_of_two = int.Parse(table_powers_of_two[pow].ToString());
+				
+				if(accumulator + int.Parse(table_doublings[pow].ToString()) <= dividend )
+				{
+					// Set new values
+					accumulator += doublings;
+					answer += powers_of_two;
+					
+					// Show accumulated row values in different collor
+					Console.ForegroundColor = ConsoleColor.Green;
+					Console.Write("{0,8}{1,16}",powers_of_two, doublings);
+					Console.ForegroundColor = ConsoleColor.Green;
+					Console.WriteLine("{0,10}{1,12}", answer, accumulator);
+					Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop - 2);
+				}
+				else
+				{
+					// Show not accumulated row walues
+					Console.ForegroundColor = ConsoleColor.DarkGray;
+					Console.Write("{0,8}{1,16}",powers_of_two, doublings);
+					Console.ForegroundColor = ConsoleColor.Gray;
+					Console.WriteLine("{0,10}{1,12}", answer, accumulator);
+					Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop - 2);
+				}
+				
+				
+				pow--;
+			}
+			
+			Console.WriteLine();
+			Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop + row + 2);
+			Console.ResetColor();
+			
+			// Set result and reminder
+			result = answer;
+			if( accumulator < dividend )
+			{
+				reminder = dividend - accumulator;
+				
+				Console.WriteLine(" So " + dividend +
+				                  " divided by " + divisor +
+				                  " using the Egyptian method is \n " + result +
+				                  " remainder (" + dividend + " - " + accumulator +
+				                  ") or " + reminder);
+				Console.WriteLine();
+			}
+			else
+			{
+				reminder = 0;
+				
+				Console.WriteLine(" So " + dividend +
+				                  " divided by " + divisor +
+				                  " using the Egyptian method is \n " + result +
+				                  " remainder " + reminder);
+				Console.WriteLine();
+			}
+		}
+	}
+}