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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. 	dp[0]=1;
  17. 	int mod = 1e9+7;
  18. 	for(long long i=1;i<=n;i++)
  19. 	{
  20. 		for(long long j=0;j<=x;j++)
  21. 		{
  22. 			if(j-a[i-1] >= 0)
  23. 			{
  24. 				dp[j] =(dp[j] + dp[j-a[i-1]])%mod;
  25. 			}
  26. 		}
  27. 	}
  28.  
  29. 	cout<<dp[x]%mod<<endl;
  30.  
  31. 	return 0;
  32. }
Success #stdin #stdout 0.01s 5292KB
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stdin
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3 9
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stdout
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3
https://ideone.com/jgVhJq
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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