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  1. #include <stdio.h>
  2. #include <stdbool.h>
  3.  
  4. void printRange(int sortedArray[], int len) {
  5. 	int i, current, next, printStart, printEnd, startIndex = 0;
  6. 	bool print = false;
  7.  
  8. 	for (i = 0; i < len; i++) {
  9. 		printStart = sortedArray[startIndex];
  10. 		printEnd = sortedArray[i];
  11.  
  12. 		current = sortedArray[i];
  13. 		next = sortedArray[i + 1];
  14.  
  15. 		if (next - current != 1) {
  16. 			startIndex = i + 1;
  17. 			print = true;
  18. 		}
  19.  
  20. 		if (print) {
  21. 			if (printStart - printEnd == 0) {
  22. 				printf("%d,", printStart);
  23. 			} else {
  24. 				printf("%d-%d,", printStart, printEnd);
  25. 			}
  26. 			print = false;
  27. 		}
  28. 	}
  29. }
  30.  
  31. int main() {
  32. 	int sortedArray[] = { 1, 3, 4, 5, 7, 8, 9 };
  33. 	int len = sizeof(sortedArray) / sizeof(sortedArray[0]);
  34. 	printRange(sortedArray, len);
  35. 	return 0;
  36. }
  37.  
Success #stdin #stdout 0s 2156KB
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stdin
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Standard input is empty
stdout
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1,3-5,7-9,
https://ideone.com/8knzJm
language:
C (gcc 8.3)
created:
8 years ago
visibility:
secret

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