#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <set>
#include <map>
#include <atcoder/all>
using namespace std;
using namespace atcoder;

int main() {
  int n, m; cin >> n >> m;
  vector<int> z(n), c(n), cnt(n);
  for (int i = 0; i < n; i++) {
    cin >> c[i];
    c[i]--;
    z[i] = cnt[c[i]]++;
  }
  map<int, vector<pair<int, int>>> mp;
  for (int i = 0; i < m; i++) {
    int u, v; cin >> u >> v; u--, v--;
    if (c[u] == c[v]) {
      mp[c[u]].push_back({u, v});
    }
  }
  long long ans = 0;
  for (int i = 0; i < n; i++) {
    int now = 0;
    if (mp[i].size()) {
      dsu d(cnt[i]);
      for (auto [u, v] : mp[i]) {
        int nu = z[u];
        int nv = z[v];
        if (!d.same(nu, nv)) {
          d.merge(nu, nv);
          now++;
        }
      }
    }
    if (cnt[i] > 0) {
      ans += cnt[i] - 1 - now;
    }
  }
  cout << ans << endl;


}