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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. long long MAXN=1000000;
  5. long long dp[1000000+1];
  6.  
  7. int main() {
  8. 	// your code goes here
  9. 	ios::sync_with_stdio(false);
  10.     cin. tie(NULL);
  11.     cout. tie(NULL);
  12.     long long k=1000000007;
  13.     dp[0]=dp[1]=0;
  14. 	dp[2]=dp[3]=1;
  15. 	for(int i=4;i<=MAXN;i++)
  16. 	{
  17. 		dp[i]=(dp[i-2]%k+dp[i-3]%k)% k;
  18. 	}
  19. 	int t; cin>>t;
  20. 	while(t--){
  21. 		long long  N; cin>>N;
  22. 		cout<<dp[N]<<"\n";
  23. 	}
  24. 	return 0;
  25. }
Success #stdin #stdout 0.01s 11340KB
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https://ideone.com/qiFZqc
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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