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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int a, b;
  6. 	cin>>a>>b;
  7. 	int result = (b+4)/7 - (a+4)/7 + (a%7==3);
  8. 	cout<<result;
  9. 	return 0;
  10. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/cHQwU5
Milespots
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
secret

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