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  1. #include <stdio.h>
  2.  
  3. int main() 
  4. {
  5. 	int n,count=0;
  6. 	scanf("%d",&n);
  7. 	if(n>0)
  8. 	{
  9. 		for(;n>0;)
  10. 		{
  11. 			n=n/10;
  12. 			count++;
  13. 		}
  14. 	}
  15. 	else
  16. 	count=-1;
  17. 	printf("%d",count);
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 2172KB
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9
https://ideone.com/Yn7eFq
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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