#include <bits/stdc++.h>
#define int long long
using namespace std;
using vi = vector<int>;
#define endl '\n'

void solve()
{
    int n;
    cin >> n;
    vector<int> v(n + 1);
    bool is1 = 1, is2 = 1, is3 = 1;
    for (int i = 1; i <= n; i++)
    {
        cin >> v[i];
    }
    for (int i = 1; i <= n; i++)
    {

        if (v[i] != i)
            is1 = 0;
        if (v[i] != n - i + 1)
            is2 = 0;
    }
    for (int i = 1; i <= n; i++)
    {
        if (v[i] != i)
        {
            if (i != n && v[i + 1] == i)
                swap(v[i + 1], v[i]);
            else if (i != 1 && v[i - 1] == i)
                swap(v[i - 1], v[i]);
            else
                is3 = 0;
        }
    }
    if (n == 2 || n == 3 || is1 || is2 || is3)
    {
        cout << "Yes" << endl;
    }
    else
    {
        cout << "No" << endl;
    }
}
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int T;
    cin >> T;
    while (T--)
        solve();
}