제출 #1003744

#제출 시각아이디문제언어결과실행 시간메모리
1003744codexistentStove (JOI18_stove)C++14
0 / 100
0 ms348 KiB
#include <bits/stdc++.h>
using namespace std;
#define MAXN 100005
#define FOR(i, a, b) for(int i = a; i <= b; i++)
 
int n, m, arr[MAXN];
 
int main(){
    cin >> n >> m;
    FOR(i, 1, n) cin >> arr[i];
    sort(arr + 1, arr + 1 + n);
 
    multiset<int> s;
    FOR(i, 1, n - 1) s.insert(arr[i + 1] - arr[i] - 1);
 
    int res = arr[n] - arr[1] + 1;
    while(s.size() && m){
        res -= *(s.rbegin());
        s.erase(s.find(*(s.rbegin())));
        m--;
    }
 
    cout << res << endl;
}
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