func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int a[n];     for (int i = 0; i < n; ++i) cin >> a[i];     vector<int> d;     for (int i = 0; i < n; ++i) {       int pos = upper_bound(d.begin(), d.end(), a[i]) - d.begin();       if (pos == d.size())         d.push_back(a[i]);       else         d[pos] = a[i];     }     cout << d.size();   }   