Submission #862877

#	Time	Username	Problem	Language	Result	Execution time	Memory
862877		20163070	Stove (JOI18_stove)	C++14	100 / 100	40 ms	2140 KiB

stove

#include <bits/stdc++.h>
using namespace std;

const int N=1e5+10;

int n,k;
int a[N];
int f[N];
int c[N];

int main()
{
	cin>>n>>k;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
	}
	for(int i=1;i<n;i++)
	{
		c[i]=a[i+1]-a[i]-1;
	}
	sort(c+1,c+n);
	int ans=a[n]-a[1]+1;
	for(int i=n-1;i>=n-k+1;i--) ans-=c[i];
	cout<<ans<<endl;
	return 0;
}

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