Submission #870982

#	Time	Username	Problem	Language	Result	Execution time	Memory
870982		marcid	Stove (JOI18_stove)	C++17	20 / 100	1 ms	508 KiB

stove

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

signed main() {
	int n, k; cin >> n >> k;
	vector<int> a(n+1, 0);
	vector<pair<int,int>> b(n+1, {0,0});
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	for (int i = 1; i <= n; i++) {
		b[i].first = abs(a[i-1]-a[i])-1;
		b[i].second = i;
	} sort(b.rbegin(), b.rend());
	int sum = a[n]-a[1]+1;
	for (int i = 0; i < k-1; i++) {
		sum -= b[i].first; 
	} cout << sum;
}

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