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C#-Sharp Daily (November 24, 2017)

 

Date 2011/4/10
Name BullsAndCows
Description A number guessing game written in C-Sharp
Filename BullsAndCowsCS.cs
Content
  1. Print the following message:
    Bulls and Cows
    ==============
    This is an ancient game with guessing numbers.
  2. Draw 4-digit random number.
  3. Print the following message:
    A secret number of 4-digit has been draw!
  4. Obtain a 4-digit number or "quit" from user by prompting following message repeatly:
    Please enter a 4-digit number (or type 'quit' to exit):
  5. If the input is "quit" show the following message (replace 0000 with the actual number being drawed
    The secret number is: 0000
  6. Show the number of digit(s) that have correct position as bull and the number of digit(s) that appeared without exact position as cow. For instance: The random number is 1234 and the user input 1355. Exact position: "1", appeared without exact position: "3". The system should display the following message:
    1 bull 1 cow
  7. If no digit found n the random number, the following should be shown instead:
    Neither a bull nor a cow!
  8. On the other hand, if the user guess the 4 digits correctly, the system should show the following message instead:
    4 bulls! You are a genius!
  9. Ask the user to play again if 4 digits have been guessed correctly by showing the following message:
    Do you want to play a new game (Y/N)?
  10. Show the following message if user has chosen to quit the program:
    Thank you for playing Bulls and Cows!
Sample Input:  
Sample Output:  
Expected Test Command: csc BullsAndCowsCS.cs
BullsAndCowsCS.exe

using System;
using System.Text.RegularExpressions;
class BullAndCowsCS{
	public static void Main(){
		int i,j,bull=0,cow=0;
		int[] secretDigit,arr;
		string msg, ans, playNextGame;
		
		secretDigit=new int[4];
		arr=new int[4];
		Console.WriteLine("Bulls and Cows");
		Console.WriteLine("==============");
		Console.WriteLine("This is an ancient game with guessing numbers.");
		Random rand=new Random();
		Regex regex=new Regex("^\\d{4}$|^quit$");
		do{
			string secret="";
			playNextGame="";
			for(i=0;i<4;i++){
				secretDigit[i]=rand.Next(0,9);
				secret+=secretDigit[i].ToString();
			}
			Console.WriteLine("A secret number of 4-digit has been draw!");
			do{
				do{
					Console.Write("Please enter a 4-digit number (or type 'quit' to exit):");
					ans=Console.ReadLine().Trim();
				}while(!regex.IsMatch(ans));
				if(ans=="quit"){
					Console.WriteLine("The secret number is: " + secret);
				}else{
					cow=0;
					bull=0;
					for(i=0;i<4;i++)
						if(Int32.TryParse(ans.Substring(i,1),out arr[i]))
							if(arr[i]==secretDigit[i]) bull++;
					for(i=0;i<4;i++)
						for(j=0;j<4;j++)
							if(arr[j]==secretDigit[i]){
								cow++;
								arr[j]=-1;
								break;
							}
					cow-=bull;
					msg="";
					if(cow==0 && bull==0){
						msg="Neither a bull nor a cow!";
					}else{
						if(bull==4)
							msg="4 bulls! You are a genius!";
						else{
							if(cow==0){
								if(bull==1)
									msg="1 bull only.";
								else
									msg=bull + " bulls only.";
							}else if(bull==0){
								if(cow==1)
									msg="1 cow only.";
								else
									msg=cow + " cows only.";
							}else{
								if(bull==1)
									msg="1 bull and ";
								else
									msg=bull + " bulls and ";
								if(cow==1)
									msg+="1 cow.";
								else
									msg+=cow + " cows.";
							}
						}
					}
					Console.WriteLine(msg);
				}
			}while(bull!=4 && ans!="quit");
			if(ans!="quit"){
				do{
					Console.Write("Do you want to play a new game (Y/N)?");
					playNextGame=Console.ReadLine();
				}while(playNextGame!="Y" && playNextGame!="N" && playNextGame!="y" && playNextGame!="n");
			}
		} while ((playNextGame=="Y" || playNextGame=="y") && ans!="quit");
		Console.WriteLine("Thank you for playing Bulls and Cows!");
	}
}


Date 2011/4/9
Name Add Two Numbers
Description Add Two Numbers using C#-Sharp
Filename AddTwoNumCS.cs
Content
  1. Using the Standard input stream to enter different numbers or text
  2. Find two integers each time and,
  3. Display output the sum to the standard output stream.
  4. Repeat the all the steps until an EOF (End of File) signal received
Sample Input: 123 3.5 dsfasd 4 fdsafds 6
Sample Output: 126 0
Expected Test Command: csc AddTwoNumCS.cs
AddTwoNumCS.exe < testdata.txt

class AddTwoNumCS{
	public static void Main(){
		string temp;
		int nCount=0,nTotal=0;
		do{
			temp=System.Console.ReadLine();
			if(temp!=null){
				string[] arr=System.Text.RegularExpressions.Regex.Split(temp,@"\s+");
				foreach(string value in arr){
					int number;
					if(System.Int32.TryParse(value,out number)){
						if(nCount%2==0){
							nTotal=number;
						}else{
							nTotal+=number;
							System.Console.Write(nTotal+" ");
						}
						nCount++;
					}
				}
			}
		}while(temp!=null);
	}
}


Date 2011/4/8
Name Hello Friend
Description Ask user's name and echo greeting message to user using C#-Sharp
Filename HelloFriendCS.cs
Content
  1. Using the Standard output stream to prompt your:"Your name?"
  2. Then use the input stream to receive input from user.
  3. Display the greeting message "Hello, [user name]!" using standard output stream.
  4. Repeat all the steps until users press CTRL-Z (MS windows) or CTRL-D (Mac) or receive the EOF signal.
Sample Input: Peter Pan
Sample Output: Hello, Peter Pan!
Expected Test Command: csc HelloFriendCS.cs
HelloFriendCS.exe < testdata.txt

class HelloFriendCS{
	public static void Main(){
		string temp;
		do {
			System.Console.Write("Your name?");
			temp=System.Console.ReadLine();
			if(temp!=null) System.Console.WriteLine("Hello, "+temp);
		}while(temp!=null);
	}
}


Date 2011/4/7
Name Hello World
Description Display greeting message to user using C#-Sharp
Filename HelloWorldCS.cs
Content
  1. Display the greeting message "Hello, World!" using standard output stream by Windows Scripting File using JScript
Sample Input:  
Sample Output: Hello, World!
Expected Test Command: csc HelloWorldCS.cs
HelloWorldJava.exe

class HelloWorldCS{
	public static void Main(){
		System.Console.WriteLine("Hello, World!");
	}
}

6502 MPU and assembly


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