Submission #700056

#	Time	Username	Problem	Language	Result	Execution time	Memory
700056		dsyz	Stove (JOI18_stove)	C++17	100 / 100	20 ms	3216 KiB

stove

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (1000005)
int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);
	ll N,K;
	cin>>N>>K;
	ll arr[N];
	for(ll i = 0;i < N;i++){
		cin>>arr[i];
	}
	sort(arr,arr + N);
	vector<ll> gap;
	ll sum = N;
	for(ll i = 1;i < N;i++){
		gap.push_back(arr[i] - (arr[i - 1] + 1));
	}
	sort(gap.begin(),gap.end());
	for(ll i = 0;i < N - K;i++){
		sum += gap[i];
	}
	cout<<sum<<'\n';
}

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