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  1. #include <stdio.h>
  2. #include <limits.h>
  3.  
  4. int allin(const char* s1, const char* s2) {
  5. 	char seen[UCHAR_MAX] = {0};
  6. 	int count = 0;
  7. 	while (*s1++) {
  8. 		if (!seen[*s1])
  9. 			count++;
  10. 		seen[*s1] = 1;
  11. 	}
  12. 	while (*s2++) {
  13. 		if (seen[*s2]) {
  14. 			seen[*s2] = 0;
  15. 			if (!--count)
  16. 				break;
  17. 		}
  18. 	}
  19. 	return count == 0;
  20. }
  21.  
  22. int main(void) {
  23. 	printf("%d", allin("abcc", "abcd"));
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0s 2296KB
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https://ideone.com/pHEEiA
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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