Submission #1023409

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023409		vanea	Stove (JOI18_stove)	C++14	100 / 100	16 ms	3368 KiB

stove

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

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector<ll> v(n);
    for(int i = 0; i < n; i++) {
        cin >> v[i];
    }
    sort(v.begin(), v.end());
    ll ans = 0;
    vector<ll> diffs;
    for(int i = 0; i + 1 < n; i++) {
        diffs.push_back(v[i+1]-v[i]);
    }
    sort(diffs.begin(), diffs.end());
    for(int i = 0; i < n-k; i++) {
        ans += diffs[i];
    }
    ans += k;
    cout << ans;
    return 0;
}

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