题目

代码

#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
int a[N], f[N];
int main()
{
    int n;
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i];
    int res = 0;
    for(int i = 1; i <= n; i++)
    {
        f[i] = 1;
        for(int j = 1; j < i; j++)
        {
            if(a[j] < a[i]) f[i] = max(f[i], f[j] + 1);
        }
        res = max(res, f[i]);
    }
    
    cout << res;
    return 0;
}