#include #include using namespace std; using ll = long long; #define rep(i, s, t) for (ll i = s; i < (ll)(t); i++) #define all(x) begin(x), end(x) template bool chmin(T& x, T y) { return x > y ? (x = y, true) : false; } template bool chmax(T& x, T y) { return x < y ? (x = y, true) : false; } struct io_setup { io_setup() { ios::sync_with_stdio(false); std::cin.tie(nullptr); cout << fixed << setprecision(15); } } io_setup; void solve() { int n, q; cin >> n >> q; using ft = atcoder::fenwick_tree; vector vf(26, ft{n}); rep(i, 0, n) { int a; cin >> a; rep(j, 0, 26) if ((a >> j) & 1) vf[j].add(i, 1); } rep(Qi, 0, q) { int l, r; cin >> l >> r; l--; ll ans = 0; rep(i, 0, 26) { int sm = vf[i].sum(l, r); ans += (1ll << i) * sm * (r - l - sm); } cout << ans << "\n"; } } int main() { int t = 1; // cin >> t; while (t--) solve(); }