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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int group(char ch)
  5. {
  6. 	return isalpha(ch) ? 0 : isspace(ch) ? 1 : 2;
  7. }
  8.  
  9. void word(char **r, char *s, int g)
  10. {
  11. 	for (; *s && group(*s) == g; ++s)
  12. 		*((*r)++) = *s;
  13. }
  14.  
  15. int main(void)
  16. {
  17. 	char str[256], res[256], *s, *r;
  18. 	int next;
  19.  
  20. 	while (gets(str))
  21. 	{
  22. 		r = res;
  23.  
  24. 		for (next=group(s=str+strlen(str)-1); ; --s)
  25. 			if (s == str)
  26. 			{
  27. 				word(&r, s, group(*s));
  28. 				break;
  29. 			}
  30. 			else if (group(*s) != next)
  31. 			{
  32. 				word(&r, s+1, next);
  33. 				next = group(*s);
  34. 			}
  35.  
  36. 		*r = 0;
  37.  
  38. 		puts(res);
  39. 	}
  40.  
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0s 2172KB
comments (?)
stdin
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My name is qwe.
isalpha can return 1024 :(
multyspace  goes   here as 2-3-1-1
stdout
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.qwe is name My
:( 1024 return can isalpha
2-3-1-1 as here   goes  multyspace
https://ideone.com/Yz5KwH
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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