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  1. #include<iostream>
  2. using namespace std;
  3. long long n,k,cnt;
  4. int main() {
  5. 	cin>>n>>k;
  6. 	for(long long i=2;i<=n-1;i++){
  7. 		for(long long j=2;j<=6;j++){
  8. 			long long F=i*7+j-7;
  9. 			if((F*9)%11==k)cnt++;
  10. 		}
  11. 	}
  12. 	cout<<cnt<<endl;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/b6HTd3
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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