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  1. #include <bits/stdc++.h>
  2. typedef long long ll;
  3. using namespace std;
  4.  
  5. void solve() {
  6.     ll n , k;
  7.     cin >> n >> k;
  8.     vector<ll> v(n + 1);
  9.     for (int i = 1 ; i <= n ; i++)
  10.         cin >> v[i];
  11.     vector<vector<ll>> dp(n + 1, vector<ll> (45));
  12.  
  13.     for (int i = 1 ; i <= n ; i++) {
  14.         dp[i][0] = dp[i-1][0] - k + v[i];
  15.         for (int j = 1 ; j < 40 ; j++) {
  16.             dp[i][j] = max(dp[i-1][j] - k + (v[i] / (1ll << j)) , 
  17.                            dp[i-1][j-1] + (v[i] / (1ll << j)));
  18.         }
  19.     }
  20.  
  21.     cout << *max_element(dp[n].begin(), dp[n].end()) << endl;
  22. }
  23.  
  24. int32_t main() {
  25.     int t = 1;
  26.     cin >> t;
  27.     while(t--) {
  28.         solve();
  29.     }
  30. }
Runtime error #stdin #stdout #stderr 0.01s 5460KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
https://ideone.com/FptY9R
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
secret

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