Submission #1318029

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318029		kawhiet	Global Warming (CEOI18_glo)	C++20	28 / 100	2095 ms	1208 KiB

glo

#include <bits/stdc++.h>
using namespace std;

int get(vector<int> &a) {
    set<int> s;
    for (auto x : a) {
        auto it = s.lower_bound(x);
        if (it != s.end()) {
            s.erase(it);
        }
        s.insert(x);
    }
    return (int)s.size();
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, x;
    cin >> n >> x;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    int ans = get(a);
    for (int i = 0; i < n; i++) {
        a[i] -= x;
        ans = max(ans, get(a));
    }
    cout << ans << '\n';
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 13 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25