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  1. #include <iostream>
  2. #include <cctype>
  3. #define is_delim(c) (ispunct((c)) || isspace((c)))
  4.  
  5. char* poli_end(char* s){
  6. 	char* a, *b, *p = NULL;
  7. 	int   k = 0,  n = 0;
  8. 	do {
  9. 		if(*s && !is_delim(*s))
  10. 			++k;
  11. 		else if(k > 0){
  12. 			a = s - k;
  13. 			b = s - 1;
  14. 			while((a < b) && (*a == *b)){
  15. 				++a;
  16. 				--b;
  17. 			}
  18. 			if(a >= b){
  19. 				p = s - k;
  20. 				n = k;
  21. 			}
  22. 			k = 0;
  23. 		}
  24. 	} while(*s++ != '\0');
  25.  
  26. 	if(p != NULL)
  27. 		*(p + n) = '\0';
  28. 	return p;
  29. }
  30.  
  31. int main(void){
  32. 	char s[] = "ada, wow, bla, kazak, end.";
  33. 	char* p  = poli_end(s);
  34. 	if(p != NULL)
  35. 		std::cout << p << std::endl;
  36. 	return 0;
  37. }
  38.  
Success #stdin #stdout 0s 3412KB
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kazak
https://ideone.com/CdHEQO
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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