fork(1) download
copy 
  1. #include<stdio.h>
  2.  
  3. int main()
  4. {
  5. 	int a;
  6. 	int count=0,count1=0;
  7.  
  8. 	scanf("%d",&a);
  9.  
  10. 	if(a==4||a==7)
  11. 	{
  12. 		printf("-1");
  13. 		return 0;
  14. 	}
  15. 	while(a>0)
  16. 	{
  17. 		if(a%5==0)
  18. 		{
  19. 			a-=5;
  20. 			count++;
  21. 		}
  22. 		else
  23. 		{
  24. 			a-=3;
  25. 			count1++;
  26. 		}
  27.  
  28. 	}
  29. 	printf("%d",count+count1);
  30. }
Success #stdin #stdout 0s 4336KB
comments (?)
stdin
copy 
4
stdout
copy 
-1
https://ideone.com/P3YfcW
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!