Submission #1228757

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228757		nguyentuankhangtp	Stove (JOI18_stove)	C++20	100 / 100	13 ms	2244 KiB

stove

#include <bits/stdc++.h>
#define int long long
using namespace std;

int32_t main() {
    cin.tie(0)->sync_with_stdio(false);
    int n, k;
    cin >> n >> k;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    int t = a[n - 1] + 1 - a[0];
    vector<int> gap;
    for (int i = 1; i < n; i++) {
        gap.push_back(a[i] - (a[i - 1] + 1));
    }
    sort(gap.rbegin(), gap.rend());

    for (int i = 0; i < k - 1 && i < gap.size(); i++) {
        t -= gap[i];
    }

    cout << t << '\n';
}

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