제출 #898036

#제출 시각아이디문제언어결과실행 시간메모리
898036andrei_iorgulescuStove (JOI18_stove)C++14
100 / 100
16 ms2208 KiB
#include <bits/stdc++.h>

using namespace std;

int n,k,a[100005],dif[100005];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> k;
    for (int i = 1; i <= n; i++)
        cin >> a[i];
    for (int i = 1; i < n; i++)
        dif[i] = a[i + 1] - a[i] - 1;
    sort(dif + 1,dif + n);
    int sum = n;
    for (int i = 1; i <= n - k; i++)
        sum += dif[i];
    cout << sum;
    return 0;
}
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