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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	int n,x;
  7. 	cin>>n>>x;
  8.  
  9. 	int a[n];
  10. 	for(int i=0;i<n;i++)
  11. 	{
  12. 		cin>>a[i];
  13. 	}
  14.  
  15. 	pair<int,int> dp[1<<n];
  16. 	dp[0] = {0,x+1};
  17.  
  18. 	for(int s=1;s<(1<<n);s++)
  19. 	{
  20. 		dp[s] = {25,0};
  21. 		for(int i=0;i<n;i++)
  22. 		{
  23. 			if((s>>i)&1)
  24. 			{
  25. 				auto [c,w] = dp[s^(1<<i)];
  26. 				if(w + a[i] > x)
  27. 				{
  28. 					c++;
  29. 					w = min(a[i],w);
  30. 				}
  31. 				else
  32. 				{
  33. 					w+=a[i];
  34. 				}
  35. 				dp[s] = min(dp[s],{c,w});
  36. 			}
  37. 		}
  38.  
  39. 	}
  40. 	cout<<dp[(1<<n)-1].first<<endl;
  41.  
  42. 	return 0;
  43. }
Success #stdin #stdout 0s 5280KB
comments (?)
stdin
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4 10
4 8 6 1
stdout
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2
https://ideone.com/wtvULz
language:
C++14 (gcc 8.3)
created:
11 days ago
visibility:
public

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