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  1. #include <stdio.h>
  2. #include <ctype.h>
  3. #include <string.h>
  4.  
  5. void output_w(FILE* _out, const char* s, const char* pfx){
  6. 	const char*  p = s;
  7. 	const size_t n = strlen(pfx);
  8.  
  9. 	while((p = strstr(p, pfx)) != NULL){
  10. 		if((p == s) || ! isalpha(*(p - 1))){
  11. 			if(! strncmp(p, pfx, n)){
  12.  
  13. 				while(isalpha(*p))
  14. 					fputc(*p++, _out);
  15.  
  16. 				fputc('\n', _out);
  17. 				continue;
  18. 			}
  19. 		}
  20. 		p += n;
  21. 	}
  22. }
  23.  
  24. int main(void){
  25. 	char buf[64] = "hello, apply, apple, application, ap";
  26. 	char pfx[16] = "app";
  27. /*
  28. 	printf("Enter str: ");
  29. 	fgets(buf, sizeof(buf), stdin);
  30. 	printf("Enter prefix: ");
  31. 	scanf("%s", pfx);
  32. 	fflush(stdin);
  33. */
  34. 	output_w(stdout, buf, pfx);
  35. 	return 0;
  36. }
  37.  
  38.  
  39.  
Success #stdin #stdout 0s 2156KB
comments (?)
stdin
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Standard input is empty
stdout
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apply
apple
application
https://ideone.com/54bNxb
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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