Submission #1166374

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166374		novemnotes	Stove (JOI18_stove)	C++20	100 / 100	14 ms	3772 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define int long long

int n,k,total;
vector<int> gap;
vector<pair<int,int>> v;

int32_t main(){
	cin.tie(nullptr)->sync_with_stdio(false);
	cin >> n >> k;
	for(int i=0;i<n;i++){
		int a;cin >> a;
		v.push_back({a,a+1});
	}
	total = v[n-1].first - v[0].first + 1;
	for(int i=1;i<n;i++){
		gap.push_back(v[i].first - v[i-1].second);
	}
	sort(gap.begin(),gap.end(),greater<int>());
	for(int i=0;i<k-1;i++){
		total -= gap[i];
	}
	cout << total << "\n";
	return 0;
}

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