제출 #757739

#제출 시각아이디문제언어결과실행 시간메모리
757739nikoebanoidzeStove (JOI18_stove)C++14
100 / 100
84 ms6812 KiB
#include <bits/stdc++.h>

#define ll long long
#define pii pair<int,int>
#define pb push_back
#define fir first
#define sec second

using namespace std;

int main() {
	int n,k;
	cin>>n>>k;
	
	int t[n+1];
	for(int i=1;i<=n;i++)
		cin>>t[i];
		
	set <pii> s;
	
	int T[n+1]={};
	
	for(int i=2;i<=n;i++)
		s.insert({t[i]-t[i-1]-1,i});
	
	int cnt=0;
	
	for(auto it=s.begin();it!=s.end() and cnt<n-k;it++){
		pii cur=*it;
		cnt++;
		T[cur.sec]=1;
	}
	
	T[1]=1;
	
	for(int i=2;i<=n;i++){
		if(T[i]==1) T[i]=T[i-1]+t[i]-t[i-1];
		if(T[i]==0) T[i]=T[i-1]+1;
	}
	
	cout<<T[n];
	
    return 0;
}
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