Submission #1115200

#	Time	Username	Problem	Language	Result	Execution time	Memory
1115200		staszic_ojuz	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2040 KiB

stove

#include<bits/stdc++.h>
using namespace std;
using i64 = int64_t;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    i64 N, K;
    cin >> N >> K;

    vector<i64> bet(N - 1);
    vector<i64> guests(N);
    for (i64 i = 0; i < N; i++)
    {
        cin >> guests[i];
        if (i > 0)
        {
            bet[i - 1] = guests[i] - guests[i - 1] - 1;
        }
    }
    sort(bet.rbegin(), bet.rend());

    i64 wynik = guests[N - 1] - guests[0] + 1;
    for (i64 i = 1; i < K; i++)
    {
        wynik -= bet[i - 1];
    }
    cout << wynik << "\n";

    return 0;
}

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