Submission #1195369

#	Time	Username	Problem	Language	Result	Execution time	Memory
1195369		marcus06	Global Warming (CEOI18_glo)	C++20	28 / 100	2095 ms	1092 KiB

glo

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

#ifdef LOCAL
#include </home/marcus06/mycp/Library/debug.h>
#else
#define debug(...) 
#endif

int lis(vector <int> &a) {
    vector <int> L;
    for (auto &x: a) {
        auto it = lower_bound(L.begin(), L.end(), x);
        if (it == L.end()) {
            L.push_back(x);
        } else {
            *it = x;
        }
    }
    return int(L.size());
}

void solve() {
    int n, x;
    cin >> n >> x;

    vector <int> a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }

    int ans = lis(a);
    for (int i = 0; i < n; ++i) {
        a[i] -= x;
        ans = max(ans, lis(a));
    }
    cout << ans << '\n';
}

int main() {
    std::cin.tie(0)->sync_with_stdio(0);
#ifdef LOCAL
    auto begin = std::chrono::high_resolution_clock::now();
#endif

    int tt = 1;
    while (tt--) {
        solve();
    }

#ifdef LOCAL
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    std::cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
#endif
    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