Submission #863255

#	Time	Username	Problem	Language	Result	Execution time	Memory
863255		maks007	Stove (JOI18_stove)	C++14	20 / 100	1055 ms	360 KiB

stove

#include "bits/stdc++.h"

using namespace std;

#define int long long 

signed main () {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, k;
	cin >> n >> k;
	vector <int> a(n);
	for(int i = 0; i < n; i ++) cin >> a[i];
	sort(a.begin(), a.end());
	int ans = 1e9;
	for(int mask = 0; mask < (1 << n); mask ++) {
		if(__builtin_popcount(mask) != k) continue;
		if(mask % 2 != 1) continue;
		int prev = a[0], cnt = 0;
		for(int i = 1; i < n; i ++) {
			if(mask & (1 << i)) {
				cnt += a[i-1]+1-prev;
				prev = a[i];
			}
		}
		cnt += a[n-1]+1-prev;
		ans = min(ans, cnt);
	}
	cout << ans;
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50