#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int Mod=1e9+7;
const ll INF = 10000000000000;
const int N = 1e6+7;
 
    void solve() {
       ll n;
       cin >> n;
       vector<ll> a;
       a.push_back(-INF);
       for(int i=0;i<n;i++){
        int x;cin >> x;
        if(x==a.back()) continue;
        a.push_back(x);
       }
       a.push_back(-INF);
       int ans = 0;
       for(int i=1;i<a.size()-1;i++){
            if(a[i]>a[i-1] && a[i]>a[i+1]) ans++;
       }
       cout << ans << '\n';
    }
int main(){ 
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    int t;
    cin >> t;
    while (t--) solve();
 
    return 0;
}

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4
5
4 3 2 1 5
3
1 1 1
6
7 8 1 5 9 2
10
1 7 9 7 1 10 2 10 10 7