Submission #681848

#	Time	Username	Problem	Language	Result	Execution time	Memory
681848		ethening	Stove (JOI18_stove)	C++17	100 / 100	24 ms	2264 KiB

stove

#include "bits/stdc++.h"
using namespace std;
using ll = long long;
using pii = pair<int, int>;

int main() {
	cin.tie(0)->sync_with_stdio(0);
	int n, k;
	cin >> n >> k;
	vector<int> a(n + 5);
	priority_queue<int> Q;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
		if (i > 1) {
			Q.push(a[i] - a[i - 1] - 1);
		}
	}
	int ans = a[n] - a[1] + 1;
	for (int i = 1; i <= k - 1; i++) {
		ans -= Q.top();
		Q.pop();
	}
	cout << ans << endl;
}

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