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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Scanner sc = new Scanner(System.in);
  13. 		int t = sc.nextInt();
  14. 		for(int j=0;j<t;j++){
  15. 			int n = sc.nextInt();
  16. 			String s = sc.next();
  17. 			Queue<Character> arr = new LinkedList<>();
  18. 			for(int m=0;m<n;m++){
  19. 				arr.offer(s.charAt(m));
  20. 			}
  21. 			int num = 0;
  22. 			for(int m=0;m<n;m++){
  23. 				int num1=0;
  24. 				char prev ='#';
  25. 				for(int b=0;b<n;b++){
  26. 					char front = arr.poll();
  27. 					if(prev!=front){
  28. 						num1=num1+1;
  29. 					}
  30. 					arr.offer(front);
  31. 					prev=front;
  32. 				}
  33. 				num=Math.max(num1,num);
  34. 				arr.offer(arr.poll());
  35. 			}
  36. 			System.out.println(num);
  37. 		}
  38. 	}
  39. }
Success #stdin #stdout 0.15s 56216KB
comments (?)
stdin 
1
6
abbccc
stdout 
4
https://ideone.com/JH1j0b
language:
Java (HotSpot 12)
created:
8 days ago
visibility:
public

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