Submission #260729

#	Time	Username	Problem	Language	Result	Execution time	Memory
260729		arbor	Stove (JOI18_stove)	C++14	100 / 100	26 ms	2176 KiB

stove

#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int MN = 1e5 + 5;

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int N, K; cin >> N >> K;
    vector<int> a(N), d(N - 1);
    for (int i = 0; i < N; i++) cin >> a[i];
    for (int i = 0; i < N - 1; i++) d[i] = a[i + 1] - a[i] - 1;
    int ans = a[N - 1] - a[0] + 1;
    sort(d.rbegin(), d.rend());
    for (int i = 0; i < K - 1; i++) ans -= d[i];
    cout << ans << '\n';
    return 0;
}

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