#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
void err(istream_iterator<string> it) {}
template <typename T, typename... Args>
void err(istream_iterator<string> it, T a, Args... args) {
  cerr << *it << " = " << a << endl;
  err(++it, args...);
}
template <class T, class U>
inline void checkmin(T &x, U y) {
  if (y < x) x = y;
}
template <class T, class U>
inline void checkmax(T &x, U y) {
  if (y > x) x = y;
}
template <class T, class U>
inline bool ifmax(T &x, U y) {
  if (y > x) return x = y, true;
  return false;
}
template <class T, class U>
inline bool ifmin(T &x, U y) {
  if (y < x) return x = y, true;
  return false;
}
long long fstpow(long long a, long long b) {
  long long res = 1;
  while (b) {
    if (b & 1) res = (res * a);
    a = (a * a);
    b >>= 1;
  }
  return res;
}
long long powm(long long a, long long b, long long mod) {
  long long res = 1;
  while (b) {
    if (b & 1) res = (res * a) % mod;
    a = (a * a) % mod;
    b >>= 1;
  }
  return res;
}
bool sortinrev(const pair<int, int> &a, const pair<int, int> &b) {
  return (a.first > b.first);
}
void fukof() {}
void problem() {}
const long long mod = 1e9 + 7;
const long long N = 1000005;
const long long inf = 1e9;
void solve() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (long long i = 0; i < (n); i++) {
    cin >> a[i];
  };
  vector<int> b = a;
  sort(b.begin(), b.end());
  int fl = 1, st = 0, ed = n;
  for (long long i = 0; i < (n); i++) {
    if (a[i] != i + 1) {
      st = i;
      break;
    }
  }
  for (long long i = (n)-1; i >= 0; i--) {
    if (a[i] != i + 1) {
      ed = i + 1;
      break;
    }
  }
  for (long long i = (st); i < (ed); i++) {
    if (a[i] == i + 1) fl = 0;
  }
  if (b == a) {
    cout << "0\n";
  } else {
    if (!fl)
      cout << 2 << endl;
    else
      cout << 1 << endl;
  }
}
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0), cout.tie(0);
  cout << fixed << setprecision(15);
  int tc = 1;
  cin >> tc;
  while (tc--) {
    problem();
    fukof();
    solve();
  }
  return 0;
}
