Submission #587333

#	Time	Username	Problem	Language	Result	Execution time	Memory
587333		Fidan	Stove (JOI18_stove)	C++17	100 / 100	35 ms	3228 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll num=(1e9)+7;
const ll N=4*(1e5)+10;
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	ll n, k, i;
	cin>>n>>k;
	vector<ll> t(n);
	
	for(i=0; i<n; i++){
		cin>>t[i];
	}
	
	sort(t.begin(), t.end());
	
	vector<ll> v;
	
	for(i=1; i<n; i++){
		v.push_back(t[i]-t[i-1]-1);
	}
	
	sort(v.begin(), v.end());
	reverse(v.begin(), v.end());
	
	ll l=t[n-1]+1-t[0];
	
	for(i=0; i<k-1; i++){
		l-=v[i];
	}
	
	cout<<l;
	
	return 0;
}

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