Submission #391745

#	Time	Username	Problem	Language	Result	Execution time	Memory
391745		timmyfeng	Stove (JOI18_stove)	C++17	100 / 100	22 ms	2076 KiB

stove

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

const int N = 100000;

int t[N], gap[N];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, k;
    cin >> n >> k;

    for (int i = 0; i < n; ++i) {
        cin >> t[i];
        if (i > 0) {
            gap[i] = t[i] - t[i - 1] - 1;
        }
    }

    int ans = t[n - 1] + 1 - t[0];
    sort(gap + 1, gap + n, greater<int>());
    for (int i = 0; i < k; ++i) {
        ans -= gap[i];
    }

    cout << ans << "\n";
}

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