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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		Scanner in = new Scanner(System.in);
  10. 		int n = Integer.parseInt(in.next());
  11. 		char[] tape = new char[n];
  12. 		for (int i = 0; i < n; i++)
  13. 			tape[i] = 0;
  14. 		int pointer = 0;
  15. 		String program = in.next();
  16. 		for (int i = 0; i < program.length(); i++) {
  17. 			if (program.charAt(i) == '>')
  18. 				pointer++;
  19. 			if (program.charAt(i) == '<')
  20. 				pointer--;
  21. 			if (program.charAt(i) == '+')
  22. 				tape[pointer]++;
  23. 			if (program.charAt(i) == '-')
  24. 				tape[pointer]--;
  25. 			if (program.charAt(i) == '.')
  26. 				System.out.print(tape[pointer]);
  27. 			if (program.charAt(i) == ',')
  28. 				tape[pointer] = (char) System.in.read();
  29.  
  30. 			if (program.charAt(i) == '[') {
  31. 				if (tape[pointer] == 0) {
  32. 					int counter = 1;
  33. 					while (counter > 0) {
  34. 						i++;
  35. 						if (program.charAt(i) == '[')
  36. 							counter++;
  37. 						if (program.charAt(i) == ']')
  38. 							counter--;
  39. 					}
  40. 				}
  41. 	        }
  42. 	        else if (program.charAt(i) == ']') {
  43. 				if (tape[pointer] != 0) {
  44. 					int counter = 1;
  45. 					while (counter > 0) {
  46. 						i--;
  47. 						if (program.charAt(i) == '[')
  48. 							counter--;
  49. 						if (program.charAt(i) == ']')
  50. 							counter++;
  51. 					}
  52. 				}
  53. 	        }
  54. 		}
  55. 	}
  56. }
Success #stdin #stdout 0.14s 321344KB
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stdin
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100
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.
stdout
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Hello World!
https://ideone.com/DqgSYR
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
secret

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