제출 #718156

#제출 시각아이디문제언어결과실행 시간메모리
718156Yell0Stove (JOI18_stove)C++17
100 / 100
21 ms2088 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; const int MN=1e5+2; int N,K,a[MN],in[MN]; int main() { ios::sync_with_stdio(0);cin.tie(0); cin>>N>>K; for(int i=0;i<N;++i) cin>>a[i]; sort(a,a+N); for(int i=1;i<N;++i) in[i]=a[i]-a[i-1]; sort(in+1,in+N); ll ans=N; for(int i=1;i<=N-K;++i) ans+=in[i]-1; cout<<ans<<'\n'; return 0; }
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