Submission #967617

#	Time	Username	Problem	Language	Result	Execution time	Memory
967617		njoop	Stove (JOI18_stove)	C++17	100 / 100	20 ms	1504 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int n, k, arr[100010], ans;
priority_queue<int> pq;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> k; 
    k--;
    for(int i=0; i<n; i++) {
        cin >> arr[i];
    }
    sort(arr, arr+n);
    for(int i=1; i<n; i++) {
        pq.push(arr[i]-arr[i-1]-1);
    }
    ans = arr[n-1] - arr[0]+1;
    while(k--) {
        ans -= pq.top();
        pq.pop();
    }
    cout << ans;
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50