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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4.  
  5.  
  6. /* Name of the class has to be "Main" only if the class is public. */
  7. public class Main
  8. {
  9. 	static void printRLEDigits(String input) {
  10. 	    Scanner sc = new Scanner(input);
  11. 	    int freq = 0;
  12. 	    int oldNum = 0;
  13. 	    boolean first = true;
  14.  
  15. 	    out: while(sc.hasNext()) {
  16.  
  17. 	        String s = sc.next(); // getting "number" delimited with whitespaces
  18. 	        for (char c: s.toCharArray()) {
  19. 	            if (!Character.isDigit(c)) {
  20. 	                break out;
  21. 	            }
  22. 	            int i = c - '0';
  23. 	            if (i != oldNum || first) {
  24. 	                if (first)
  25. 	                    first = false;
  26. 	                else // digit changed
  27. 	                    System.out.printf("%dx%d.", freq, oldNum);
  28. 	                oldNum = i;
  29. 	                freq = 1;
  30. 	            } else {
  31. 	                freq++;
  32. 	            }
  33. 	        }
  34. 	    }
  35. 	    if (!first)    
  36. 	        System.out.printf("%dx%d.%n", freq, oldNum);
  37. 	    else 
  38. 	        System.out.println("No integer found");
  39. 	    sc.close();    
  40. 	}
  41.  
  42. 	static void printRLE(String input) {
  43. 	    Scanner sc = new Scanner(input);
  44. 	    int freq = 0;
  45. 	    int oldNum = 0;
  46. 	    boolean first = true;
  47.  
  48. 	    while(sc.hasNextInt()) {
  49.  
  50. 	        int i = sc.nextInt();
  51.  
  52. 	        if (i != oldNum || first) {
  53. 	            if (first)
  54. 	                first = false;
  55. 	            else // integer value changed
  56. 	                System.out.printf("%dx%d.", freq, oldNum);
  57. 	            oldNum = i;
  58. 	            freq = 1;
  59. 	        } else {
  60. 	            freq++;
  61. 	        }
  62. 	    }
  63. 	    if (!first)    
  64. 	        System.out.printf("%dx%d.%n", freq, oldNum);
  65. 	    else 
  66. 	        System.out.println("No integer found");
  67. 	    sc.close();    
  68. 	}
  69.  
  70.  
  71. 	public static void main (String[] args) throws java.lang.Exception
  72. 	{
  73. 		String[] tests = {
  74. 		    "",
  75. 		"abc.",
  76. 		    "11 11 11",
  77. 		    "112 223",
  78. 		    "1 1 1\n7 7 2 2 1",
  79. 		    "1 1 1\n7 7 2 2 0 ",
  80. 		    "0 0 0",
  81. 		};
  82.  
  83. 		for (String test: tests) {
  84. 		    System.out.println("test=[" + test + "]");
  85. 		    System.out.println("Numbers: ");
  86. 		    printRLE(test);
  87. 		    System.out.println("Digits: ");
  88. 		    printRLEDigits(test);
  89.  
  90. 		    System.out.println("--------");
  91. 		}
  92. 	}
  93. }
Success #stdin #stdout 0.18s 38620KB
comments (?)
stdin 
Standard input is empty
stdout 
test=[]
Numbers: 
No integer found
Digits: 
No integer found
--------
test=[abc.]
Numbers: 
No integer found
Digits: 
No integer found
--------
test=[11 11 11]
Numbers: 
3x11.
Digits: 
6x1.
--------
test=[112 223]
Numbers: 
1x112.1x223.
Digits: 
2x1.3x2.1x3.
--------
test=[1 1 1
7 7 2 2 1]
Numbers: 
3x1.2x7.2x2.1x1.
Digits: 
3x1.2x7.2x2.1x1.
--------
test=[1 1 1
7 7 2 2 0 ]
Numbers: 
3x1.2x7.2x2.1x0.
Digits: 
3x1.2x7.2x2.1x0.
--------
test=[0 0 0]
Numbers: 
3x0.
Digits: 
3x0.
--------
https://ideone.com/M4HgMf
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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