#include <iostream>
using namespace std;
int main()
{
const int SIZE = 100;
int height[SIZE], num[SIZE], n, ans;
cin>>n;
for (int i = 0; i < n; i++)
{ cin>>height[i];
num[i] = 1;
for (int j = 0; j < i; j++) {
if ((height[j] < height[i]) && (num[j] >= num[i]))
num[i] = num[j]+1;
}
}
ans = 0;
for (int i = 0; i < n; i++) {
if (num[i] > ans) ans = num[i];
}
cout<<ans<<endl;
}输入：
6
2 5 3 11 12 4
输出：_________