#include <bits/stdc++.h>
template <typename Arg1>
void __f(const char* name, Arg1&& arg1) {
  std::cout << name << " : " << arg1 << '\n';
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args) {
  const char* comma = strchr(names + 1, ',');
  std::cout.write(names, comma - names) << " : " << arg1 << " | ";
  __f(comma + 1, args...);
}
using namespace std;
long long par[200005], size[200005];
long long root(long long i) {
  if (par[i] == i) return i;
  return par[i] = root(par[i]);
}
void merge(long long a, long long b) {
  long long p = root(a);
  long long q = root(b);
  if (size[p] > size[q]) swap(p, q);
  par[p] = q;
  size[q] += size[p];
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  long long i, j, n, m, k, cnt = 0, ans = 0, t = 1;
  cin >> n >> m;
  vector<pair<long long, pair<long long, long long> > > e;
  for (i = 0; i < n - 1; i++) {
    long long w;
    cin >> j >> k >> w;
    e.push_back(make_pair(w, make_pair(j, k)));
  }
  sort(e.begin(), e.end());
  vector<pair<long long, long long> > q;
  for (i = 0; i < m; i++) {
    cin >> j;
    q.push_back(make_pair(j, i));
  }
  sort(q.begin(), q.end());
  for (i = 0; i < 200005; i++) par[i] = i, size[i] = 1;
  set<long long> s;
  for (i = 1; i < n + 1; i++) {
    if (root(i) == i) s.insert(i);
  }
  ans = 0;
  j = 0;
  long long out[m + 1];
  for (i = 0; i < m; i++) {
    while (j < e.size() && e[j].first <= q[i].first) {
      long long v1 = e[j].second.first, v2 = e[j].second.second;
      if (root(v1) != root(v2)) {
        long long a = root(v1);
        long long b = root(v2);
        if (size[a] > size[b]) {
          s.erase(b);
        } else
          s.erase(a);
        ans -= (size[a] * (size[a] - 1)) / 2;
        ans -= (size[b] * (size[b] - 1)) / 2;
        ans += ((size[a] + size[b]) * (size[a] + size[b] - 1)) / 2;
        merge(v1, v2);
      }
      j++;
    }
    out[q[i].second] = ans;
  }
  for (long long it = 0; it < m; it++) cout << out[it] << " ";
  cout << '\n';
  return 0;
}
