Submission #476337

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
476337	2021-09-26 05:11:55	palilo	Stove (JOI18_stove)	C++17	100 / 100	26 ms	1612 KiB

stove

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#include <bits/stdc++.h>
using namespace std;
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
#ifdef palilo
    freopen("in", "r", stdin);
    freopen("out", "w", stdout);
#endif
    int n, k;
    cin >> n >> k;
    vector<int> a(n - 1);
    {
        int prv, cur;
        cin >> prv;
        for (auto& x : a) {
            cin >> cur;
            x = cur - prv;
            prv = cur;
        }
    }
    sort(a.begin(), a.end());
    const auto res = accumulate(a.begin(), a.end() - (k - 1), 0);
    cout << res + k;
}
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50