#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

#include <atcoder/dsu>

int main() {
  int n, q;
  cin >> n >> q;
  vector<int> a(n);
  rep(i, n) cin >> a[i];
  vector<int> p2p(n);
  atcoder::dsu d(n);
  {
    vector<pair<int, int>> tmp;
    rep(i, n) tmp.push_back({ a[i], i });
    sort(tmp.begin(), tmp.end());
    rep(i, n) {
      if (i > 0 && tmp[i - 1].first == tmp[i].first) {
        p2p[tmp[i].second] = p2p[tmp[i - 1].second];
        d.merge(tmp[i].second, tmp[i - 1].second);
      }
      else {
        p2p[tmp[i].second] = i;
      }
    }
  }
  while (q--) {
    int x, y;
    cin >> x >> y;
    --x, --y;
    cout << max(0, p2p[x] - p2p[y] - d.size(y)) << endl;
  }
  return 0;
}