Submission #1101216

#	Time	Username	Problem	Language	Result	Execution time	Memory
1101216		Agageldi	Stove (JOI18_stove)	C++17	100 / 100	20 ms	5436 KiB

stove

/*
ID: agageld1
LANG: C++17
TASK:
*/
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define N 400005
#define ff first
#define ss second
#define pb push_back
#define sz(s) (int)s.size()

ll n, t, ans, a[N], s;
map <int,int> vis;
vector<pair<int,pair<int,int>>> v;

int main () {
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> n >> t;
	s = n;
	ans = n;
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	sort(a+1,a+n+1);
	for(int i = 1; i < n; i++) {
		v.pb({a[i+1] - a[i],{i,i+1}});
	}
	sort(v.begin(),v.end());
	for(auto i:v) {
		if(s == t) break;
		s--;
		ans += i.ff+1;
		ans -= 2;
	}
	cout << ans << '\n';
}

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