#include <bits/stdc++.h>
using namespace std;
long long ans = 0;
long long p[200001], c[200001], sz[200001];
void pre() {
  for (int i = 0; i < 200001; i++) {
    p[i] = i;
    c[i] = 1;
    sz[i] = 1;
  }
}
int root(int val) {
  while (p[val] != val) {
    p[val] = p[p[val]];
    val = p[val];
  }
  return val;
}
void connect(int x, int y) {
  x = root(x);
  y = root(y);
  if (x != y) {
    if (sz[x] < sz[y]) {
      p[y] = x;
      sz[x] = sz[y];
    } else {
      p[x] = y;
      sz[y] = sz[x];
    }
    if (sz[x] == sz[y]) sz[y]++;
    ans += c[x] * c[y];
    long long co = c[x];
    c[x] += c[y];
    c[y] += co;
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  pre();
  int n, m;
  cin >> n >> m;
  vector<pair<int, pair<int, int> > > s;
  for (int x, y, w, i = 1; i < n; i++) {
    cin >> x >> y >> w;
    s.push_back({w, {x, y}});
  }
  sort(s.begin(), s.end());
  vector<pair<int, int> > v;
  for (int x, i = 0; i < m; i++) {
    cin >> x;
    v.push_back({x, i});
  }
  int cur = 0;
  sort(v.begin(), v.end());
  long long a[m + 1];
  for (int i = 0; i < m; i++) {
    for (; cur < n - 1;) {
      if (s[cur].first <= v[i].first) {
        int x = s[cur].second.first;
        int y = s[cur].second.second;
        connect(x, y);
        cur++;
      } else
        break;
    }
    a[v[i].second] = ans;
  }
  for (int i = 0; i < m; i++) {
    cout << a[i] << " ";
  }
}
