Submission #936600

#	Time	Username	Problem	Language	Result	Execution time	Memory
936600		kitlix	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2996 KiB

stove

#include <bits/stdc++.h>
#define int long long

using namespace std;

signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n, k;
    cin >> n >> k;
    k -= 1;
    vector<int> t(n);
    for (auto& el : t)
        cin >> el;
    sort(t.begin(), t.end());
    vector<int> diffs;
    diffs.reserve(n);
    for (int i = 0; i + 1 < n; ++i)
        diffs.push_back(t[i + 1] - t[i] - 1);
    sort(diffs.begin(), diffs.end(), greater<>());
    int rem = 0;
    for (int i = 0; i < k; ++i)
        rem += diffs[i];
    cout << t.back() + 1 - t[0] - rem;
}

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