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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. long long DP[1000001];
  5. int main()
  6. {
  7. 	ios::sync_with_stdio(false);
  8. 	cin.tie(NULL);
  9. 	cout.tie(NULL);
  10.     DP[0]=DP[2]=DP[3]=1;
  11.     DP[1]=0;
  12.     int mod=1e9+7;
  13.     for (int i=3;i<=1000000;i++){
  14.         DP[i]=(DP[i-2]%mod+DP[i-3]%mod)%mod;
  15.     }
  16. 	int t;
  17. 	cin>>t;
  18. 	while(t--)
  19. 	{
  20. 		int n;
  21. 		cin>>n;
  22. 		cout<<DP[n];
  23. 		cout<<"\n";
  24. 	}
  25. 	return 0;
  26. }
  27.  
Success #stdin #stdout 0.01s 11340KB
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https://ideone.com/dLVxbr
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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