Submission #1218612

#	Time	Username	Problem	Language	Result	Execution time	Memory
1218612		395333em	Cake 3 (JOI19_cake3)	C++20	0 / 100	0 ms	320 KiB

cake3

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

const int N = 2e5 + 5;

int n, m;
pair <int, int> a[N];

int32_t main(){
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        cin >> a[i].second >> a[i].first;
    }
    sort(a + 1, a + 1 + n);
    int ans = 0, sum = 0;
    multiset <int> ms;
    for (int i = 1; i <= n; i++) {
        ms.emplace(a[i].first);
        sum += a[i].second;
        if (i >= m) {
            sum -= a[i - m].second;
            ans = max(ans, sum - 2 * (*ms.rbegin() - *ms.begin()));
        }
        if (i > m) ms.erase(ms.find(a[i - m].first));
    }
    cout << ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 19
• Subtask 3: 0 / 76