Submission #579841

#	Time	Username	Problem	Language	Result	Execution time	Memory
579841		karrigan	Stove (JOI18_stove)	C++14	100 / 100	32 ms	3284 KiB

stove

#include <bits/stdc++.h>
using namespace std;
long long a[100001];
int n,k;
priority_queue<long long>b;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    //freopen(".INP","r",stdin);
   // freopen(".OUT","w",stdout);
	cin>>n>>k;
	for (int i=1;i<=n;i++)cin>>a[i];
	for (int i=1;i<n;i++)b.push(a[i+1]-a[i]);
	long long ans=k+a[n]-a[1];
	k--;
	while (k>0&&b.empty()==false){
		ans-=b.top();
		b.pop();
		k--;
	}
	cout<<ans;
}

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