mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-11-09 01:18:47 +00:00
23 lines
364 B
C++
23 lines
364 B
C++
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
int n, l, x, ans;
|
|
set<int> s;
|
|
|
|
int main() {
|
|
cin >> n;
|
|
for (int i = 1; i <= n; i++) {
|
|
cin >> x;
|
|
auto it = s.upper_bound(x);
|
|
if (it == s.end()) {
|
|
ans++;
|
|
} else {
|
|
s.erase(*it);
|
|
}
|
|
s.insert(x);
|
|
}
|
|
cout << ans << endl;
|
|
return 0;
|
|
}
|