Submission #807002

#	Time	Username	Problem	Language	Result	Execution time	Memory
807002		wortelworm	Stove (JOI18_stove)	C++17	100 / 100	38 ms	2032 KiB

stove

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

int main() {
    int n, matches;
    cin >> n >> matches;

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

    int total_time = times.back() + 1 - times.front();
    matches--;

    vector<int> diff(n - 1);
    for (int i = 0; i < n - 1; i++) {
        diff[i] = times[i + 1] - times[i] - 1;
    }
    
    // largest first
    sort(diff.rbegin(), diff.rend());
    for (int i = 0; i < n - 1; i++) {
        if (matches == 0) {
            break;
        }

        matches--;
        total_time -= diff[i];
    }

    cout << total_time;
}

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