Submission #570652

#	Time	Username	Problem	Language	Result	Execution time	Memory
570652		kkkkkkkk	Stove (JOI18_stove)	C++17	100 / 100	53 ms	1360 KiB

stove

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n,k;
    cin >> n >> k;
    int a[n];
    vector<int> v;
    for (int i=0;i<n;i++)
    {
        cin >> a[i];
        if (i>0)
            v.push_back(a[i]-a[i-1]-1);
    }
    sort(v.begin(),v.end());
    long long vk=a[n-1]-a[0]+1;
    k--;
    while (k>0&&v.size()>0)
    {
        vk-=v.back();
        v.pop_back();
        k--;
    }
    cout << vk;

    return 0;
}

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