Submission #990101

#	Time	Username	Problem	Language	Result	Execution time	Memory
990101		Newtonabc	Stove (JOI18_stove)	C++14	100 / 100	35 ms	2408 KiB

stove

#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int arr[N];
priority_queue<int> q;
int main(){
	int n,m,ans,prev;
	cin>>n >>m;
	for(int i=1;i<=n;i++) cin>>arr[i];
	prev=arr[1];
	for(int i=2;i<=n;i++){
		q.push(arr[i]-prev-1);
		prev=arr[i];
	}
	ans=arr[n]-arr[1]+1;
	int cnt=1;
	while(cnt<m){
		ans-=q.top();
		q.pop();
		cnt++;
	}
	cout<<ans;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50