Submission #1091263

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091263		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	17 ms	1512 KiB

stove

#include <bits/stdc++.h>

#define ll long long
#define pb push_back

using namespace std;

int main (){
	ios_base::sync_with_stdio(0);
	int n, k;
	cin >> n >> k;
	vector <int> v, a(n);
	for (int &i : a) cin >> i;
	for (int i = 1; i < n; i++) v.pb(a[i] - a[i - 1] - 1);
	sort(v.begin(), v.end());
	ll ans = n;
	for (int i = 0; i < n - k; i++) ans += v[i];
	cout << ans;
}

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