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  1. #include <iostream>
  2. using namespace std;
  3. int main(){
  4. 	int n;
  5. 	cin>>n;
  6. 	if(n<=4){
  7. 		cout<<0;
  8. 	}
  9. 	int zong=n-4,ans=0;
  10. 	int arr[1000]={6,2,5,5,4,5,6,3,7,6};
  11. 	for(int i=0;i<=9;i++){
  12. 		for(int j=0;j<=9;j++){
  13. 			if(i==j){
  14. 				continue;
  15. 			}
  16. 			if(zong-arr[i]-arr[j]==2){
  17. 				ans++;
  18. 			}
  19. 			if(zong-arr[i]-arr[j]==3){
  20. 				ans++;
  21. 			}
  22. 			if(zong-arr[i]-arr[j]==4){
  23. 				ans++;
  24. 			}
  25. 			if(zong-arr[i]-arr[j]==5){
  26. 				ans+=3;
  27. 			}
  28. 			if(zong-arr[i]-arr[j]==6){
  29. 				ans+=3;
  30. 			}
  31. 			if(zong-arr[i]-arr[j]==7){
  32. 				ans++;
  33. 			}
  34. 		}
  35. 	}
  36. 	cout<<ans;
  37. 	return 0;
  38. }
  39.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/jjkEH1
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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