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  1. import java.io.IOException;
  2. import java.util.HashMap;
  3. import java.io.OutputStreamWriter;
  4. import java.io.InputStreamReader;
  5. import java.io.BufferedReader;
  6. import java.io.PrintWriter;
  7.  
  8. class Recode{
  9. 	String pass;
  10. 	boolean hear;
  11. 	public Recode(String pass, boolean hear){
  12. 		this.pass = pass;
  13. 		this.hear = hear;
  14. 	}
  15. }
  16.  
  17. class Comments {
  18. 	public static String errNewAdd = "fail: user already exists\n";
  19. 	public static String errLogin = "fail: no such user\n";
  20. 	public static String errInPass = "fail: incorrect password\n";
  21. 	public static String errAlIn = "fail: already logged in\n";
  22. 	public static String errLogout = "fail: already logged out\n";
  23. 	public static String sucNewAdd = "success: new user added\n";
  24. 	public static String sucLogin = "success: user logged in\n";
  25. 	public static String sucLogout = "success: user logged out\n";
  26. }
  27.  
  28. public class Main{
  29. 	private static HashMap<String, Recode> DataBase = new HashMap<String, Recode>();
  30.  
  31. 	private static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  32. 	private static PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
  33.  
  34. 	public static void main(String[] args) throws java.lang.Exception{
  35. 		int n = nextInt();
  36. 		for (int i = 0; i < n; i++){
  37. 			try{
  38. 				Query(getRequest());
  39. 			}
  40. 			catch(Exception e){
  41. 				err(e);
  42. 			}
  43. 		}
  44. 		out.flush();
  45. 	}
  46.  
  47. 	public static String[] getRequest() throws IOException{
  48. 		return in.readLine().split(" ");
  49. 	}
  50.  
  51. 	public static void Query(String[] req){
  52. 		if(req[0].equals("register")){ // if register - we member the password and name
  53. 			Registration(req[1], req[2]);
  54. 		}
  55. 		else if(req[0].equals("login")){
  56. 			Login(req[1],req[2]);
  57. 		}
  58. 		else if(req[0].equals("logout")){
  59. 			Logout(req[1]);
  60. 		}
  61. 	}
  62.  
  63. 	public static void Registration(String user, String pass){
  64. 		if(!DataBase.containsKey(user)){
  65. 			DataBase.put(user, new Recode(pass, false));
  66. 			out.print(Comments.sucNewAdd);
  67. 		}
  68. 		else{
  69. 			out.print(Comments.errNewAdd);
  70. 		}
  71. 	}
  72.  
  73.  
  74. 	public static void Login(String user, String pass){
  75. 		if(DataBase.containsKey(user)){
  76. 			if(DataBase.get(user).pass.equals(pass)){
  77. 				if(!DataBase.get(user).hear){
  78. 					DataBase.put(user, new Recode(pass, true));
  79. 					out.print(Comments.sucLogin);
  80. 				} 
  81. 				else out.print(Comments.errAlIn);
  82. 			}
  83. 			else out.print(Comments.errInPass);
  84. 		}
  85. 		else out.print(Comments.errLogin);
  86. 	}
  87.  
  88. 	public static void Logout(String user){
  89. 		if(DataBase.containsKey(user)){
  90. 			if(DataBase.get(user).hear){
  91. 				DataBase.put(user, new Recode(DataBase.get(user).pass, false));
  92. 				out.print(Comments.sucLogout);
  93. 			}
  94. 			else out.print(Comments.errLogout);
  95. 		}
  96. 		else out.print(Comments.errLogin);
  97. 	}
  98.  
  99. 	public static int nextInt() throws IOException{
  100. 		return Integer.parseInt(in.readLine());
  101. 	}
  102.  
  103. 	private static void err(Object a){
  104. 		out.println(a);
  105. 	}
  106. }
Success #stdin #stdout 0.12s 320576KB
comments (?)
stdin
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6
register vasya 12345
login vasya 1234
login vasya 12345
login anakin C-3PO
logout vasya
logout vasya
stdout
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success: new user added
fail: incorrect password
success: user logged in
fail: no such user
success: user logged out
fail: already logged out
https://ideone.com/LUUYr9
Timus 2002 : Testing Task
language:
Java (12.0.1)
created:
8 years ago
visibility:
secret

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