Submission #835022

#	Time	Username	Problem	Language	Result	Execution time	Memory
835022		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	15 ms	2668 KiB

stove

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

const int MAXN = 1e6;
ll n, k;
ll t[MAXN];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    cin >> n >> k;
    for (int i = 0; i < n; i++)
        cin >> t[i];
    vector<int> mmb;
    for (int i = 0; i < n; i++)
        if (i > 0)
            mmb.push_back(t[i] - t[i - 1] - 1);
    sort(mmb.rbegin(), mmb.rend());
    cout << (t[n - 1] + 1) - t[0] - accumulate(mmb.begin(), mmb.begin() + k - 1, 0);
}

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