Submission #621480

#	Time	Username	Problem	Language	Result	Execution time	Memory
621480		elkernos	Stove (JOI18_stove)	C++17	100 / 100	25 ms	3232 KiB

stove

#include <bits/stdc++.h>

using namespace std;

#define int long long

int32_t main()
{
    cin.tie(0)->sync_with_stdio(0);
    int n, k;
    cin >> n >> k;
    vector<int> t(n + 1);
    for(int i = 1; i <= n; i++) {
        cin >> t[i];
    }
    vector<int> gr;
    for(int i = 1; i + 1 <= n; i++) {
        gr.emplace_back(t[i + 1] - t[i]);
    }
    sort(gr.rbegin(), gr.rend());
    int ans = t[n] - t[1] + k;
    for(int i = 0; i < k - 1; i++) {
        ans -= gr[i];
    }
    cout << ans << '\n';
}

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