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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5. 	int n,x;
  6. 	cin>>n>>x;
  7.  
  8. 	int arr[n+1],cost[n+1];
  9. 	pair <float, int > harga[n+1]; //cost number
  10.  
  11. 	harga[0]= make_pair(-9,-9);
  12.  
  13. 	for(int i=1;i<=n;i++)
  14. 	{
  15. 		cin>>arr[i];
  16. 	}
  17.  
  18. 	for(int i=1;i<=n;i++)
  19. 	{
  20. 		cin>>cost[i];
  21. 		double yo=cost[i];
  22. 		harga[i] = make_pair (yo/arr[i],i);
  23. 	}
  24.  
  25. 	sort(harga,harga+n+1);
  26.  
  27. 	int now=n;
  28. 	double pantek=0;
  29. 	while(true)
  30. 	{
  31.  
  32. 		if ( (now==0) or (x==0) )
  33. 		{
  34. 			break;
  35. 		}
  36.  
  37. 		if(x>=arr[harga[now].second])
  38. 		{
  39. 			pantek+= cost[harga[now].second];
  40. 			x-= arr[harga[now].second];
  41. 		}
  42. 		else
  43. 		{
  44. 			double tambah;
  45. 			tambah = x*harga[now].first;
  46. 			pantek+= tambah;
  47. 			x = 0;
  48. 		}
  49.  
  50. 		now--;
  51. 	}
  52.  
  53. 	cout<< fixed << setprecision(5)<< pantek<<"\n";
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 4452KB
comments (?)
stdin
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3 5
1 1 1
3 3 1
stdout
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7.00000
https://ideone.com/RObiwj
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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