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  1. #include<bits/stdc++.h>
  2. #define lli long long int
  3. using namespace std;
  4. int main(){
  5. 	lli l,r,i,j;
  6. 	cin>>l>>r;
  7. 	int count=0;
  8. 	for(i=0;i<14;i++){
  9. 		for(j=0;j<10;j++){
  10. 			lli x=pow(3,i)*pow(5,j);
  11. 			if(x>=l&&x<=r)
  12. 				count++;
  13. 		}
  14. 	}
  15. 	cout<<count<<endl;
  16. }
Success #stdin #stdout 0s 4504KB
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https://ideone.com/FFS0pt
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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