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  1. /**
  2.  * code generated by JHelper
  3.  * More info: https://g...content-available-to-author-only...b.com/AlexeyDmitriev/JHelper
  4.  * @author gainullin.ildar
  5.  */
  6.  
  7. #include <iostream>
  8. #include <vector>
  9. #include <algorithm>
  10. #include <string>
  11. #include <set>
  12. #include <map>
  13. #include <list>
  14. #include <time.h>
  15. #include <math.h>
  16. #include <random>
  17. #include <deque>
  18. #include <queue>
  19. #include <cassert>
  20.  
  21. using namespace std;
  22.  
  23. typedef long long ll;
  24.  
  25. const int N = 1e5 + 7;
  26.  
  27. int n, S;
  28. int a[N];
  29. ll b[N];
  30.  
  31. ll res(int k)
  32. {
  33.     for (int i = 0; i < n; i++)
  34.     {
  35.         b[i] = a[i] + (i + 1) * (ll) k;
  36.     }
  37.     sort(b, b + n);
  38.     ll ans = 0;
  39.     for (int i = 0; i < k; i++)
  40.     {
  41.         ans += b[i];
  42.     }
  43.     return ans;
  44. }
  45.  
  46. class Main
  47. {
  48. public:
  49.     void solve(std::istream &in, std::ostream &out)
  50.     {
  51.         in >> n >> S;
  52.         for (int i = 0; i < n; i++)
  53.         {
  54.             in >> a[i];
  55.         }
  56.         int l = 0, r = n + 1;
  57.         while (l < r - 1)
  58.         {
  59.             int m = (l + r) / 2;
  60.             if (res(m) <= S)
  61.             {
  62.                 l = m;
  63.             }
  64.             else
  65.             {
  66.                 r = m;
  67.             }
  68.         }
  69.         out << l << ' ' << res(l) << '\n';
  70.     }
  71. };
  72.  
  73.  
  74. int main()
  75. {
  76.     ios::sync_with_stdio(0);
  77.     Main solver;
  78.     std::istream &in(std::cin);
  79.     std::ostream &out(std::cout);
  80.     solver.solve(in, out);
  81.     return 0;
  82. }
  83.  
Success #stdin #stdout 0s 16400KB
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https://ideone.com/IYaFQC
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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