제출 #1334408

#제출 시각아이디문제언어결과실행 시간메모리
1334408iderzolboo5Stove (JOI18_stove)C++20
100 / 100
35 ms1964 KiB
#include <bits/stdc++.h>
#define ll long long 
using namespace std;

int main() {
    ll n,i,x;
    cin>>n>>x;
    ll a[n+5],b[n+5];
    for(i=1;i<=n;i++){
        cin>>a[i];
    }
    for(i=1;i<n;i++){
        b[i]=a[i+1]-a[i]-1;
    }
    sort(b+1,b+n);
    ll ans=0;
    for(i=1;i<=n-x;i++){
        ans+=b[i];
    }
    cout<<ans+n;
}
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