제출 #1290558

#제출 시각아이디문제언어결과실행 시간메모리
1290558ifzehraStove (JOI18_stove)C++20
100 / 100
37 ms1984 KiB
#include <bits/stdc++.h>
#define int long long
using namespace std;

int32_t main(){
    int n,k;
    cin>>n>>k;
    vector<int> a(n);
    vector<int> gap(n-1);
    
    for(int i=0;i<n;i++) {
        cin>>a[i];
        if(i>0) gap[i-1]=a[i]-a[i-1]-1;
    }
    
    sort(gap.begin(), gap.end());
    
    int gapsum=0;
    
    for(int i=0; i<k-1 ; i++) gapsum+=gap[n-2-i];
    
    int cevap= (a[n-1]-a[0]+1) -gapsum;
    
    cout<<cevap;
}
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