Submission #347275

#	Time	Username	Problem	Language	Result	Execution time	Memory
347275		nicholask	Stove (JOI18_stove)	C++14	100 / 100	58 ms	3084 KiB

stove

#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
	int n,k;
	cin>>n>>k;
	int a[n];
	for (int i=0; i<n; i++) cin>>a[i];
	int d[n-1];
	for (int i=0; i<n; i++) d[i]=a[i+1]-a[i]-1;
	sort(d,d+n-1);
	int ans=n;
	for (int i=0; i<n-k; i++) ans+=d[i];
	cout<<ans<<endl;
}

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