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  1. #include <bits/stdc++.h>
  2. typedef long long ll;
  3. using namespace std;
  4. const int N = 100000 + 10;
  5. int t, n, a[N];
  6. ll ans;
  7. int main() {
  8. 	scanf("%d", &t);
  9. 	while (t--) {
  10. 		ans = 0;
  11. 		scanf("%d", &n);
  12. 		for (int i = 0; i < n; ++i)
  13. 			scanf("%d", a + i);
  14. 		for (int k = 0; k <= 20; ++k) {
  15. 			int cnt = 0;
  16. 			for (int i = 0, v; i < n; ++i) {
  17. 				v = (a[i] >> k) & 1;
  18. 				if (v) {
  19. 					++cnt;
  20. 				}
  21. 				else {
  22. 					ans += (ll)cnt * (cnt + 1) / 2 * (1 << k);
  23. 					cnt = 0;
  24. 				}
  25. 			}
  26. 			ans += (ll)cnt * (cnt + 1) / 2 * (1 << k);
  27. 		}
  28. 		printf("%lld\n", ans);
  29. 	}
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 15624KB
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stdout 
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https://ideone.com/23iukT
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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