Submission #1331104

#	Time	Username	Problem	Language	Result	Execution time	Memory
1331104		kantaponz	Stove (JOI18_stove)	C++20	100 / 100	18 ms	2332 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int nx = 1e5+5;

int n, k;
ll ans = 0;
ll t[nx];
priority_queue<ll, vector<ll>, greater<ll>> pq;

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

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