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  1. #include <bits/stdc++.h>
  2.  // codeforces.com/gym/101532/problem/A
  3. using namespace std;
  4. const int N = 1e5 + 6;
  5. int n;
  6. int arr[N];
  7. // value & (1 << bit)
  8. int main() {
  9.  
  10.     ios_base::sync_with_stdio(false);
  11.     cin.tie(nullptr);
  12.     cout.tie(nullptr);
  13.     int t;
  14.     cin >> t;
  15.     while (t--) {
  16.         cin >> n;
  17.         for (int i = 0; i < n; ++i) {
  18.             cin >> arr[i];
  19.         }
  20.         long long ans = 0;
  21.         for (int bit = 0; bit < 32; ++bit) {
  22.             long long c = 0, number_of_subs = 0;
  23.             for (int i = 0; i < n; ++i) {
  24.                 if (arr[i] & (1 << bit)) {
  25.                     c++;
  26.                 } else {
  27.                     number_of_subs += c * (c + 1) / 2;
  28.                     c = 0;
  29.                 }
  30.             }
  31.             number_of_subs += c * (c + 1) / 2;
  32.             ans += number_of_subs * (1LL << bit);
  33.         }
  34.         cout << ans << endl;
  35.     }
  36.  
  37.     return 0;
  38. }
Success #stdin #stdout 0.01s 5572KB
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https://ideone.com/7qFVl3
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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