Submission #1264218

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264218		Elephant52	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1096 KiB

stove

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
const int INF = 1000000000;

int N, K;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> N >> K;
    vector<int> t(N);
    for (int &i : t) {
        cin >> i;
    }

    vector<int> diffs(N - 1);
    for (int i = 0; i+1 < N; ++i) {
        diffs[i] = t[i+1] - (t[i]+1);
    }

    sort(diffs.begin(), diffs.end(), greater<int>());

    int ans = t.back() + 1 - t.front();
    for (int i = 0; i < K-1; ++i) {
        ans -= diffs[i];
    }

    cout << ans << '\n';

    return 0;
}

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