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  1. import java.io.BufferedReader; 
  2. import java.io.PrintWriter; 
  3. import java.io.InputStreamReader;
  4.  
  5. class DhapuandHammingDistance 
  6. { 
  7. 	public static void main(String arg[])throws Exception
  8. 	{ 
  9. 		BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); 
  10. 		PrintWriter pr=new PrintWriter(System.out,true);
  11.  
  12. 		int t,c,i,l1,l2; 
  13. 		char c1[],c2[]; 
  14. 		String s;
  15. 		t = Integer.parseInt(br.readLine()); 
  16. 		while ( t-->0 )
  17. 		{ 
  18. 			s = br.readLine(); 
  19. 			//c2 = br.readLine(); 
  20. 			c1 = s.toCharArray();
  21. 			c2 = s.toCharArray();
  22. 			l1 = c1.length;
  23. 			l2 = c2.length;
  24. 			c = 0; 
  25. 			if(l1!=l2) 
  26. 				pr.println(-1); 
  27. 			else
  28. 			{ 
  29. 				for(i=0;i<l1;i++)
  30. 				{ 
  31. 					if(c1[i]!=c2[i]) 
  32. 						c++; 
  33. 				}
  34.  
  35. 				pr.println(c);
  36. 			}
  37.  
  38. 		}
  39.  
  40. 	}
  41.  
  42. }
Success #stdin #stdout 0.11s 320320KB
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https://ideone.com/tm0TUo
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
secret

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