제출 #1105790

#제출 시각아이디문제언어결과실행 시간메모리
1105790YouKnowCipherStove (JOI18_stove)C++17
0 / 100
1 ms440 KiB
#include <bits/stdc++.h>
using namespace std;

#define int long long int

int32_t main () {
    int n, k;
    cin >> n >> k;
    vector<int> v(n), res(n - 1);
    for (int i = 0; i < n; i++) {
        cin >> v[i];
    }
    for (int i = 1; i < n; i++) {
        res[i - 1] = v[i] - v[i - 1] - 1;
    }
    sort(res.begin(), res.end(), greater<int>());
    int cost = 0;
    for (int i = 0; i < k - 1; i++) {
        cost += res[i];
    }
    cout << max(n, *max_element(v.begin(), v.end()) - cost) << endl;
}
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