Submission #1279375

#	Time	Username	Problem	Language	Result	Execution time	Memory
1279375		peanut	Stove (JOI18_stove)	C++20	100 / 100	16 ms	1024 KiB

stove

#include <bits/stdc++.h>

using namespace std;

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

    int n, k; cin >> n >> k;
    int prev; cin >> prev;
    int ans = -prev;
    vector<int> gaps;
    for (int i = 1; i < n; ++i)
    {
        int cur; cin >> cur;
        gaps.push_back(cur - (prev + 1));
        prev = cur;
    }
    sort(gaps.rbegin(), gaps.rend());
    ans += prev + 1;
    for (int i = 0; i < k-1; ++i) ans -= gaps[i];
    cout << ans;

    return 0;
}

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