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  1. #include <iostream>
  2. #include<stdio.h>
  3. #include<memory.h>
  4. #include<limits.h>
  5. #include<string.h>
  6. using namespace std;
  7.  
  8. char str[100005];
  9. int hashmap[300];
  10. int main() 
  11. {
  12. 	int t,n,i,j,maxlen,prev_index,cur_len;
  13. 	scanf("%d",&t);
  14. 	while(t--)
  15. 	{
  16. 		memset(hashmap,-1,sizeof(hashmap));
  17. 		scanf("%s",str);
  18. 		maxlen=1;
  19. 		cur_len=1;
  20. 		hashmap[str[0]]=0;
  21. 		n=strlen(str);
  22. 		for(i=1;i<n;i++)
  23. 		{
  24. 			prev_index=hashmap[str[i]];
  25.  
  26. 			if(prev_index==-1||i-cur_len>prev_index)
  27. 			{
  28. 				cur_len++;
  29. 			}
  30. 			else
  31. 			{
  32. 				if(maxlen<cur_len)
  33. 				maxlen=cur_len;
  34.  
  35. 				cur_len=i-prev_index;
  36. 			}
  37. 			hashmap[str[i]]=i;
  38. 		}
  39. 		if(cur_len>maxlen)
  40. 		maxlen=cur_len;
  41.  
  42. 		printf("%d\n",maxlen);
  43. 	}
  44. 	// your code goes here
  45. 	return 0;
  46. }
Success #stdin #stdout 0.01s 5324KB
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https://ideone.com/SDOzXu
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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