#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
	ios::sync_with_stdio(false);
	std::cin.tie(nullptr);
	std::cout.tie(nullptr);
	srand((unsigned)time(NULL));
	int TT;
	cin>>TT;
	auto fs = [&](vector<int> &s) -> bool {
		int n = s.size();
		vector<int> A = {};
		for(int i=0;i<n-1;i++) A.push_back((s[i] < s[i+1] ? 1 : 0));
		if(A[0] == 1 || A.back() == 0) return false;
		int c = 0;
		for(int i=0;i<A.size()-1;i++)if(A[i] != A[i+1]) c++;
		return (c == 3);
	};
	while(TT--){
		int N;
		cin>>N;
		vector<int> A(N);
		for(int i=0;i<N;i++) cin>>A[i];
		cout<<(fs(A) ? "Yes" : "No")<<endl;
	}
}