제출 #1115699

#제출 시각아이디문제언어결과실행 시간메모리
1115699staszic_ojuzStove (JOI18_stove)C++17
100 / 100
17 ms1660 KiB
#include<bits/stdc++.h>

using namespace std; 

#define ll long long

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

    int n, k; cin >> n >> k;

    vector<int> guests(n); 
    for (int i = 0; i < n; i++) cin >> guests[i]; 
    sort(guests.begin(), guests.end()); 

    vector<int> dis; 
    for (int i = 1; i < n; i++) dis.push_back(guests[i] - guests[i-1] - 1); // odleglosc

    sort(dis.begin(), dis.end());
    
    int res = n; 
    
    int ile = n - k; 
    for (int i = 0; i < ile; i++){
        res += dis[i]; 
    }
    
    cout << res << '\n'; 
}
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