제출 #1249053

#제출 시각아이디문제언어결과실행 시간메모리
1249053bethanceStove (JOI18_stove)C++20
100 / 100
28 ms1096 KiB
#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,k;
	cin>>n>>k;
	int a[n],b[n-1];
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	for(int i=1;i<n;i++){
		b[i-1]=a[i]-a[i-1]-1;
	}
	sort(b,b+n-1);
	//for(int i=0;i<n;i++){
		//cout<<b[i]<<" ";
	//}
	//cout<<endl;
	int sum=0;
	for(int i=0;i<n-k;i++){
		sum+=b[i];
	}
	cout<<sum+n;
}
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