#include <bits/stdc++.h>
#define N 1005
using namespace std;
int n, f[N], x[N];
int main()
{
cin >> n;
for (int i = 0; i < n; i++)
{
cin >> x[i];
}
f[0] = 1;
for (int i = 0; i < n; i++)
{
f[i] = 1;
for (int j = 0; j < i; j++)
{
if (x[j] < x[i])
{
f[i] = max(f[i], f[j] + 1);
}
}
}
cout << *max_element(f, f + n) << '\n';
return 0;
}
这是为什么?!