Submission #678029

#	Time	Username	Problem	Language	Result	Execution time	Memory
678029		vjudge1	Stove (JOI18_stove)	C++17	0 / 100	0 ms	212 KiB

stove

#include <bits/stdc++.h>
#define len(x) (int)x.size()
#define ll long long
#define pb push_back
#define F first
#define S second
using namespace std;
const int N = 1e5 + 5;
vector <int> v;
int n,k,a[N];
ll cnt;
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin >> n >> k;
	for (int i=1;i<=n;i++){
		cin >> a[i];
	}
	k--;
	for (int i=2;i<=n;i++){
		v.pb(a[i] - (a[i-1] + 1));
	}
	sort(v.begin(), v.end(), greater<int>());
	for (int i=0;i<k;i++){
		cnt+=v[i];
	}
	cout << a[n] - cnt;
}

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