#include<bits/stdc++.h>
using namespace std;

void solve(){
  int n;
  cin>>n;
  vector<int> h(n);
  for (int i=0;i<n;i++) cin>>h[i];
  int cnt=0;
  for (int i=0;i<n-2;i++) cnt+=h[i]<h[i+1]!=h[i+1]<h[i+2];
  if (cnt==3&&h[0]>h[1]) cout<<"Yes\n";
  else cout<<"No\n";
}

int main(){
  int t;
  cin>>t;
  while (t--) solve();
}