Submission #897359

#	Time	Username	Problem	Language	Result	Execution time	Memory
897359		box	Stove (JOI18_stove)	C++17	100 / 100	19 ms	1732 KiB

stove

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    ios::sync_with_stdio(0), cin.tie(0);
    int n, k; cin >> n >> k;
    vector<int> a(n);
    for (int& x : a) cin >> x;
    int ans = a.back() - a[0] + 1;
    for (int i = 0; i < n - 1; i++)
    a[i] = a[i + 1] - a[i];
    a.pop_back();
    sort(a.rbegin(), a.rend());
    for (int i = 0; i < k - 1; i++) ans -= a[i] - 1;
    cout << ans << '\n';
    return 0;
}

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