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- #include <bits/stdc++.h>
- using namespace std;
- typedef long long ll;
- signed main() {
- cin.tie(0)->sync_with_stdio(0);
- int n; cin >> n;
- multiset<int> s;
- for (int i = 0; i < n; i++) {
- int x; cin >> x;
- auto it = s.upper_bound(-x);
- if (it != s.end()) s.erase(it);
- s.insert(-x);
- }
- cout << s.size() << '\n';
- }
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