#include<bits/stdc++.h>

using namespace std;

void solve(){
	int n;
	cin >> n;

	vector<int> a(n), p(n);
	for(int i = 0; i < n; i++) cin >> a[i], p[a[i]] = i;

	int ans = 0;
	vector<int> vis(n);

	for(int i = n - 1; i >= 0; i--){
		if(a[i] == 1 || !vis[p[a[i] - 1]]) ans++;
		vis[p[a[i]]] = 1;
	}

	cout << ans << "\n";
}

signed main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int t; cin >> t;
	while(t--) solve();

	return 0;
}