# hdu 1950 Bridging signals (LIS)

Posted by 111qqz on Friday, April 1, 2016

## TOC

``````/* ***********************************************
Author :111qqz
Created Time :2016年04月01日 星期五 20时43分24秒
File Name :code/hdu/1950.cpp
************************************************ */

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <string>
#include <cmath>
#include <cstdlib>
#include <ctime>
#define fst first
#define sec second
#define lson l,m,rt<<1
#define rson m+1,r,rt<<1|1
#define ms(a,x) memset(a,x,sizeof(a))
typedef long long LL;
#define pi pair < int ,int >
#define MP make_pair

using namespace std;
const double eps = 1E-8;
const int dx4[4]={1,0,0,-1};
const int dy4[4]={0,-1,1,0};
const int inf = 0x3f3f3f3f;
const int N=4E4+7;
int n;
int a[N];
int dp[N];
int g[N];

int main()
{
#ifndef  ONLINE_JUDGE
freopen("code/in.txt","r",stdin);
#endif
ios::sync_with_stdio(false);
int T;
cin>>T;
while (T--)
{
cin>>n;
for ( int i = 1 ; i <= n ; i++) cin>>a[i];
ms(g,0x3f);
int ans = 0 ;
for ( int i = 1 ; i <= n ; i++)
{
int k = lower_bound(g+1,g+n+1,a[i])-g;
dp[i] = k;
g[k] = a[i];
ans = max(ans,dp[i]);
}

cout<<ans<<endl;
}

#ifndef ONLINE_JUDGE
fclose(stdin);
#endif
return 0;
}
``````