Submission #1290526

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290526		ayran	Stove (JOI18_stove)	C++20	100 / 100	16 ms	2252 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fori for(int i=0;i<n;i++)

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, k;
    cin >> n >> k;
    vector<int> t(n);
    fori cin >> t[i];
    sort(t.begin(), t.end());

    if (k >= n) {
        cout << n;
        return 0;
    }

    vector<int> gap;
    for (int i = 0; i < n - 1; i++)
        gap.push_back(t[i + 1] - t[i] - 1);

    sort(gap.rbegin(), gap.rend());

    int total = (t.back() + 1) - t[0];
    for (int i = 0; i < k - 1; i++)
        total -= gap[i];

    cout << total;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50