Submission #364481

#	Time	Username	Problem	Language	Result	Execution time	Memory
364481		NachoLibre	Stove (JOI18_stove)	C++17	100 / 100	22 ms	1772 KiB

stove

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

const int N = 100005;
int n, k, a[N];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> k;
	if(n == 1) return cout << 1 << endl, 0;
	for(int i = 0; i < n; ++i) {
		cin >> a[i];
		if(i) a[i - 1] = a[i] - a[i - 1] - 1;
	}
	sort(a, a + n - 1);
	long long fp = n;
	for(int i = 0; i < n - k; ++i) {
		fp += a[i];
	}
	cout << fp << endl;
	return 0;
}

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