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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	long long n,x;
  7. 	cin>>n>>x;
  8.  
  9. 	long long a[n];
  10. 	for(long long i=0;i<n;i++)
  11. 	{
  12. 		cin>>a[i];
  13. 	}
  14.  
  15. 	long long DP[x+1]={0};
  16.  
  17. 	DP[0]=1;
  18.  
  19. 	for(long long j=1;j<=x;j++)
  20. 	{
  21. 		for(long long i=0;i<n;i++)
  22. 		{
  23. 			if(j-a[i] >= 0)
  24. 			{
  25. 				DP[j]=(DP[j]+DP[j-a[i]])%1000000007;
  26. 			}
  27. 		}
  28. 	}
  29.  
  30. 	cout<<DP[x]%1000000007<<endl;
  31.  
  32. 	return 0;
  33. }
Success #stdin #stdout 0.01s 5292KB
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3 9
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https://ideone.com/o7lBuu
3 9
2 3 5
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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