Submission #366262

#	Time	Username	Problem	Language	Result	Execution time	Memory
366262		inluminas	Stove (JOI18_stove)	C++14	100 / 100	27 ms	2316 KiB

stove

#include"bits/stdc++.h"
using namespace std;
 
#define ll long long
#define fastio ios_base::sync_with_stdio(false)
#define endl "\n"

int main(){
	fastio;

	ll n,k;
	cin>>n>>k;
	ll a[n+1];
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	ll ans=(a[n]-a[1]+1);
	vector<ll>b;
	for(int i=2;i<=n;i++){
		b.push_back(a[i]-a[i-1]-1);
	}
	sort(b.begin(),b.end());
	reverse(b.begin(),b.end());
	for(int i=0;i<k-1;i++){
		ans-=b[i];
	}
	cout<<ans<<endl;
	return 0;
}

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