Submission #1276901

#	Time	Username	Problem	Language	Result	Execution time	Memory
1276901		kolpo0210	Stove (JOI18_stove)	C++20	100 / 100	39 ms	1444 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n, k;
	cin >> n >> k;
	vector<int>v(n);
	for(int i=0; i<n; i++) cin >> v[i];
	if(k>=n)
	{
		cout << n;
		return 0;
	}
	sort(v.begin(), v.end());
	vector<int>g;
	for(int i=0; i<n-1; i++)
	{
		int tmp = v[i+1]-(v[i]+1);
		g.push_back(tmp);
	}
	sort(g.begin(), g.end(), greater<>());
	int sum=0;
	for(int i=0; i<k-1; i++)
	{
		sum+=g[i];
	}
	cout << (v[n-1]+1-v[0])-sum;
	
}

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