Submission #1342700

#	Time	Username	Problem	Language	Result	Execution time	Memory
1342700		curious_tiger	Stove (JOI18_stove)	C++20	100 / 100	13 ms	1996 KiB

stove

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

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    ll n, k; cin >> n >> k;
    ll t[n], d[n-1];
    for (ll i=0; i<n; i++) {
        cin >> t[i];
        if (i>0)
            d[i-1] = t[i] - t[i-1];
    }
    sort(d, d+n-1);
    ll ans = n;
    for (ll i=0; i<n-k; i++) {
        ans += d[i] - 1;
    }
    cout << ans << "\n";

    return 0;
}

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