Submission #818777

#	Time	Username	Problem	Language	Result	Execution time	Memory
818777		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	15 ms	1492 KiB

stove

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

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

    ll n, k;
    cin >> n >> k;
    vector<ll> diff;
    ll x, prev;
    ll ans = n;
    for (int i = 0; i < n; i++)
    {
        if (i == 0)
        {
            cin >> prev;
        }
        else
        {
            cin >> x;
            diff.push_back(x - (prev + 1));
            prev = x;
        }
    }
    sort(diff.begin(), diff.end());
    for (int i = 0; i < n - k; i++)
    {
        ans += diff[i];
        // cout << diff[i];
    }
    cout << ans;

    return 0;
}

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