Submission #880073

#	Time	Username	Problem	Language	Result	Execution time	Memory
880073		iskhakkutbilim	Stove (JOI18_stove)	C++17	100 / 100	19 ms	3292 KiB

stove

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

#define int long long
#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int mod = 1e9 + 7;
const int N = 1e5;



signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, k; cin >> n >> k;
	vector <int> a(n + 1);
	for(int i = 1; i <= n; i ++) cin >> a[i];
	priority_queue <int> q;
	for(int i = 2; i <= n; i ++) q.push(a[i]-a[i-1]-1);
	int dist = a[n]-a[1]+1;
	k --;
	while(q.size() && k --) {
		int v = q.top();
		q.pop();
		dist -= v;
	}
	cout << dist;
	return 0;
}

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