#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic pop
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

struct S { ll a, b; };
S op(S x, S y) { return S{x.a + y.a, x.b + y.b}; }
S e() { return S{0, 0}; }

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, q;
  cin >> n >> q;
  VI a(n);
  rep(i, n) cin >> a[i];
  VI qs(q);
  rep(i, q) cin >> qs[i];
  auto convex_check = [](P p1, P p2, P p3) {
    int dx1 = p2.first - p1.first;
    int dy1 = p2.second - p1.second;
    int dx2 = p3.first - p2.first;
    int dy2 = p3.second - p2.second;
    return ll(dx2) * dy1 >= ll(dx1) * dy2;
  };
  vector<P> st;
  rep(i, n) {
    P p(i, a[i]);
    while(st.size() >= 2 && !convex_check(st.end()[-2], st.end()[-1], p)) {
      st.pop_back();
    }
    st.emplace_back(p);
  }
  VI b(n - 1);
  rep(i, n - 1) b[i] = a[i + 1] - a[i];
  // d, i, type
  vector<tuple<int, int, bool>> evs;
  rep(i, n - 1) {
    int b = a[i+1] - a[i];
    evs.emplace_back(b, i, 0);
  }
  rep(i, q) evs.emplace_back(qs[i], i, 1);
  sort(all(evs));
  vector<S> init_vec(n - 1);
  rep(i, n - 1) init_vec[i] = S{-1, b[i]};
  segtree<S, op, e> seg_pos(init_vec), seg_neg(n - 1);
  VL ans(q);
  int ptr = int(st.size()) - 1;
  for(auto [d, i, type]: evs) {
    if (type) {
      while(ptr) {
        int dx = st[ptr].first - st[ptr - 1].first;
        int dy = st[ptr].second - st[ptr - 1].second;
        // dy/dx >= d
        if (dy >= ll(d) * dx) break;
        ptr--;
      }
      int p = st[ptr].first;
      auto [a1, b1] = seg_pos.prod(0, p);
      auto [a2, b2] = seg_neg.prod(p, n - 1);
      ans[i] = (a1 - a2) * d + b1 - b2;
    } else {
      seg_pos.set(i, S{0, 0});
      seg_neg.set(i, S{-1, b[i]});
    }
  }
  rep(i, q) cout << ans[i] << '\n';
}