제출 #1028567

#제출 시각아이디문제언어결과실행 시간메모리
1028567NichkulStove (JOI18_stove)C++14
100 / 100
16 ms2208 KiB
#include <bits/stdc++.h>
using namespace std;

int a[100050];
int b[100050];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n,k;
    cin>>n>>k;
    for(int i=0;i<n;i++) cin>>a[i];
    int x=a[n-1]-a[0]+1;
    for(int i=0;i<n-1;i++) b[i]=a[i+1]-(a[i]+1);
    sort(b,b+n-1);
    for(int i=n-2;i>=n-k;i--) x-=b[i];
    cout<<x;
    return 0;
}
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