#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <cmath>
#define min(a,b)    (((a) < (b)) ? (a) : (b))
#define max(a,b)    (((a) > (b)) ? (a) : (b))
#define abs(x)    ((x) < 0 ? -(x) : (x))
#define INF 0x3f3f3f3f
#define delta 0.85
#define eps 1e-3
#define PI 3.14159265358979323846
#define MAX_N 40005
using namespace std;
int N;
int rt[MAX_N], dp[MAX_N];

int main(){
	int t;
	scanf("%d", &t);
	while(t--){
		memset(dp, 0x3f, sizeof(dp));
		scanf("%d", &N);
		for(int i = 0; i < N; i++) scanf("%d", rt + i);
		for(int i = 0; i < N; i++) *lower_bound(dp, dp + N, rt[i]) = rt[i];
		printf("%d\n", lower_bound(dp, dp + N, INF) - dp);
	}
	return 0;
}