제출 #1033724

#제출 시각아이디문제언어결과실행 시간메모리
1033724vjudge1Stove (JOI18_stove)C++14
100 / 100
18 ms3416 KiB
#include <bits/stdc++.h>
#define int long long
using namespace std;

signed main(){
    cin.tie(nullptr) -> sync_with_stdio(0);
    int n, k;
    cin >> n >> k;
    priority_queue<int> pq;
    vector<int> t(n+5);
    for (int i = 1; i <= n; i++){
        cin >> t[i];
    }
    for (int i = 2; i <= n; i++){
        pq.push(t[i] - t[i-1] - 1);
    }
    k--;
    int ans = t[n] - t[1] + 1;
    while(!pq.empty() && k){
        ans -= pq.top();
        pq.pop();
        k--;
    }
    cout << ans;
}
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