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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. char voca[1000000];
  5. int count[1000000];
  6.  
  7. int main()
  8. {	
  9. 	int length = 0, max = 0;
  10. 	char result = '\0';
  11.  
  12. 	scanf("%s", voca);
  13. 	length = strlen(voca);
  14. 	for (int i = 0; i < length; i++)
  15. 	{
  16. 		if (voca[i] > 90)
  17. 		{
  18. 			voca[i] = voca[i] - 32;
  19. 		}
  20. 	}//대소문자 변환
  21. 	if (length == 1)//한글자 짜리
  22. 	{
  23. 		printf("%c", voca[0]);
  24. 	}
  25. 	for (int j = 0; j < length - 1; j++)
  26. 	{
  27. 		for (int k = j + 1; k < length; k++)
  28. 		{
  29. 			if (voca[j] == voca[k] && voca[j] != 0)
  30. 			{
  31. 				count[j]++;
  32. 				voca[k] = 0;
  33. 			}
  34. 			else if (voca[j] == 0)
  35. 			{
  36. 				break;
  37. 			}
  38. 		}
  39. 		if (count[j] > max)
  40. 		{
  41. 			max = count[j];
  42. 			result = voca[j];
  43. 		}
  44. 		else if (count[j] == max)
  45. 		{
  46. 			result = "?";
  47. 		}
  48. 	}
  49. 	printf("%c", result);
  50.  
  51. 	return 0;
  52. }
Success #stdin #stdout 0s 4400KB
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language:

						
C (gcc 8.3)

					

					

						
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3 years ago

					

					

						
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