Submission #162216

#	Time	Username	Problem	Language	Result	Execution time	Memory
162216		joylintp	Stove (JOI18_stove)	C++17	100 / 100	26 ms	2420 KiB

stove

#include<bits/stdc++.h>
#define int long long

using namespace std;

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n, k, t, tt;
    vector<int> v;
    cin >> n >> k >> t;
    for (int i = 1; i < n; i++)
        tt = t, cin >> t, v.push_back(t - tt - 1);
    sort(v.begin(), v.end());

    int ans = 0;
    for (int i = 0; i < n - k; i++)
        ans += v[i];
    cout << ans + n << '\n';

    return 0;
}

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