#include <bits/stdc++.h>
using namespace std;
const long long inf = (long long)(2e18);
const long double eps = 1e-6;
const unsigned long long infu = (unsigned long long)(1e36);
long long power(long long a, long long k) {
  if (k == 0) return 1;
  if (k % 2) return power(a, k - 1) * a;
  long long x = power(a, k / 2);
  return x * x;
}
vector<long long> pFunc(string s) {
  long long n = s.length();
  vector<long long> p(n, 0);
  for (long long i = 1; i < n; i++) {
    long long j = p[i - 1];
    while (j && (s[i] != s[j])) j = p[j - 1];
    if (s[i] == s[j]) j++;
    p[i] = j;
  }
  return p;
}
vector<long long> pFunc(string s1, string s2) { return pFunc(s2 + '$' + s1); }
signed main() {
  long long n, m;
  cin >> n >> m;
  vector<long long> a(n);
  for (auto &i : a) cin >> i;
  set<long long> p;
  vector<long long> ans(n);
  for (long long i = n - 1; i >= 0; i--) {
    p.insert(a[i]);
    ans[i] = p.size();
  }
  while (m--) {
    long long x;
    cin >> x;
    cout << ans[x - 1] << endl;
  }
  return 0;
}
