제출 #376457

#제출 시각아이디문제언어결과실행 시간메모리
376457astoriaStove (JOI18_stove)C++14
100 / 100
23 ms2028 KiB
#include "bits/stdc++.h"
using namespace std;

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL); cout.tie(NULL);
	int n,k;
	cin>>n>>k;
	int a[n],inb[n-1];
	for(int i=0; i<n; i++) cin>>a[i];
	for(int i=0; i<n-1; i++) inb[i] = a[i+1]-a[i]-1;
	sort(inb,inb+n-1);
	int sm=n;
	for(int i=0; i<(n-k); i++){
		sm+=inb[i];
	}
	cout<<sm;
}
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