제출 #666830

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
666830		Koful123	Stove (JOI18_stove)	C++17	100 / 100	21 ms	3228 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

void solve(){

	int n,k;
	cin >> n >> k;

	vector<int> v(n);
	for(int i = 0; i < n; i++){
		cin >> v[i];
	}

	vector<int> diff; int ans = v[n-1] - v[0] + 1;
	for(int i = 1; i < n; i++){
		diff.pb(v[i] - v[i-1] - 1);
	}

	sort(rall(diff));
	for(int i = 0; i + 1 < k; i++){
		ans -= diff[i];
	}

	cout << ans << endl;
}
 
signed main(){	
 		
	ios::sync_with_stdio(0);
	cin.tie(0);
 
	int t = 1;
//	cin >> t;
 
	while(t--)
		solve();
 
	return 0;
}

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