제출 #162216

#제출 시각아이디문제언어결과실행 시간메모리
162216joylintpStove (JOI18_stove)C++17
100 / 100
26 ms2420 KiB
#include<bits/stdc++.h>
#define int long long

using namespace std;

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n, k, t, tt;
    vector<int> v;
    cin >> n >> k >> t;
    for (int i = 1; i < n; i++)
        tt = t, cin >> t, v.push_back(t - tt - 1);
    sort(v.begin(), v.end());

    int ans = 0;
    for (int i = 0; i < n - k; i++)
        ans += v[i];
    cout << ans + n << '\n';

    return 0;
}
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