Submission #715639

#	Time	Username	Problem	Language	Result	Execution time	Memory
715639		adrilen	Stove (JOI18_stove)	C++17	100 / 100	20 ms	1368 KiB

stove

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> pii;


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    int n, k;
    cin >> n >> k;

    vector <int> v(n);
    for (int & i : v) cin >> i;
    sort(v.begin(), v.end());
    ll output = n;
    
    vector <int> differences;
    for (int i = 0; i < n - 1; i++)
    {
        differences.emplace_back(v[i + 1] - v[i]);
    }
    sort(differences.begin(), differences.end());

    for (int i = 0; i < n - k; i++)
    {
        output += differences[i] - 1;
    }

    cout << output << "\n";
}

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