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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5. 	int k,ans;
  6. 	cin>>k;
  7. 	int m=4-k%4,num;
  8. 	switch(m)
  9. 	{
  10. 		case 1:
  11. 		num=7;
  12. 		break;
  13. 		case 2:
  14. 		num=14;
  15. 		break;
  16. 		case 3:
  17. 		num=21;
  18. 		break;
  19. 		default:
  20. 		num=28;
  21. 	}
  22. 	int val=k-k%28;
  23. 	if(val+num<=k)
  24. 	ans=val+num;
  25. 	else
  26. 	ans=val-(28-num);
  27. 	cout<<"number of fours= "<<ans<<endl;
  28. 	cout<<"number of sevens= "<<k-ans<<endl;
  29. }
Success #stdin #stdout 0s 2688KB
comments ()
stdin
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100
stdout
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number of fours= 84
number of sevens= 16
https://ideone.com/rwW4Rw
language:
C++ 4.3.2 (gcc-4.3.2)
created:
9 years ago
visibility:
secret

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