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  1. #include<bits/stdc++.h>
  2. #define ll long long
  3. #define nl "\n"
  4. #define all(v) v.begin(),v.end()
  5. #define baraa ios_base::sync_with_stdio(false);cin.tie(NULL);
  6. using namespace std;
  7.  
  8. int main() {
  9.     baraa
  10.     ll t;
  11.     cin >> t;
  12.     while (t--) {
  13.         ll n, k;
  14.         cin >> n >> k;
  15.         vector<ll> a(n);
  16.         for (ll &i: a)cin >> i;
  17.         for (ll bit = 0; bit < 61; bit++) {
  18.             for (ll i = 0; i < n; i++) {
  19.                 if (a[i] >> bit & 1)continue;
  20.                 ll tar = a[i] | (1LL << bit);
  21.                 if (k - (tar - a[i]) >= 0)
  22.                     k -= (tar - a[i]), a[i] ^= (1LL << bit);
  23.             }
  24.         }
  25.         ll res = 0;
  26.         for (ll i: a)res += __builtin_popcountll(i);
  27.         cout << res << nl;
  28.     }
  29.     return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5268KB
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https://ideone.com/1lR2Qt
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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