/* Problem URL: https://codeforces.com/problemset/problem/2035/D */ #include #include #include using namespace std; using namespace __gnu_pbds; template > using ordered_set = tree; #define V vector #define rmin(a, b) a = min(a, b) #define rmax(a, b) a = max(a, b) #define rep(i, lim) for (int i = 0; i < (lim); i++) #define nrep(i, s, lim) for (int i = s; i < (lim); i++) #define repv(i, v) for (auto &i : (v)) #define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; } #define sortv(v) sort(v.begin(), v.end()) #define all(v) (v).begin(), (v).end() using vi = vector; using vvi = vector; using vvvi = vector; using vvvvi = vector; using ll = long long; using vl = vector; using vvl = vector; using vvvl = vector; using vvvvl = vector; template auto operator<<(ostream &os, const vector &vec)->ostream& { os << vec[0]; for (size_t i = 1; i < vec.size(); i++) { os << ' ' << vec[i]; } os << '\n'; return os; } template auto operator>>(istream &is, vector &vec)->istream& { for (auto &i : vec) { is >> i; } return is; } template auto operator<<(ostream &os, const vector> &vec)->ostream& { for (auto &i : vec) { os << i[0]; for (size_t j = 1; j < i.size(); j++) { os << ' ' << i[j]; } os << '\n'; } return os; } template auto operator>>(istream &is, vector> &vec)->istream& { for (auto &i : vec) { for (auto &j : i) { is >> j; } } return is; } const int oo = INT32_MAX >> 1; const ll OO = INT64_MAX >> 1; void pre() { } #define TEST 1 void solve() { int n; cin >> n; vl a(n); cin >> a; ll mod = 1e9 + 7; vvi rem(n); vl count(n); while (~a[n - 1] & 1) { count[n - 1]++; a[n - 1] >>= 1; } stack> s; s.emplace(a[n - 1], count[n - 1], n - 1); auto comp = [&](tuple al, tuple bl) { auto [a, pa, _] = al; auto [b, pb, __] = bl; if (pb >= 30) { return false; } if (pa == 0) { return a > (b << pb); } return (a << pa) + (b << pb) > a + (b << (pb + pa)); }; for (int i = n - 2; i >= 0; i--) { while (~a[i] & 1) { count[i]++; a[i] >>= 1; } tuple tup = {a[i], count[i], i}; auto [a, pa, _] = tup; while (!s.empty() && comp(tup, s.top())) { auto [b, pb, _] = s.top(); s.pop(); if (!s.empty()) { auto &[tb, tpb, __] = s.top(); tpb += pb; } } if (s.empty()) { s.emplace(tup); continue; } auto &[b, pb, j] = s.top(); rem[j].push_back(i); s.emplace(tup); } auto fpow = [&](ll a, ll p) { ll ans = 1; rep(i, 60) { if ((p >> i) & 1) { ans = (ans * a) % mod; } a = (a * a) % mod; } return ans; }; ll total = 0; rep(i, n) { repv(j, rem[i]) { total = ((total - a[j] * fpow(2, count[j])) % mod + mod) % mod; total = (total + a[j]) % mod; count[i] += count[j]; } total = (total + a[i] * fpow(2, count[i])) % mod; cout << total << " \n"[i == n - 1]; } } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); pre(); int t; (TEST && cin >> t) || (t = 1); while (t--) { solve(); } }