Submission #1033607

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033607		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2024 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int N=1e5;
int n,i,a[N+5],k,dif[N+5],ans;

void Sol(){
	cin>>n>>k;
	for(i=1;i<=n;i++) cin>>a[i];
	for(i=1;i<n;i++)
	{
		dif[i]=a[i+1]-a[i]-1;
	}
	sort(dif+1,dif+n);
	k=n-k;
	ans=n;
	for(i=1;i<=k;i++) ans+=dif[i];
	cout<<ans;
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	Sol();
	return 0;
}

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