Submission #365831

#	Time	Username	Problem	Language	Result	Execution time	Memory
365831		_zheksenov	Stove (JOI18_stove)	C++17	100 / 100	56 ms	1772 KiB

stove

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

signed main() {
    int n, k;
    cin >> n >> k;
    vector<int> a(n);
    for (int& x : a)
        cin >> x;
    for (int i = 0; i < n; i++) {
        if (i > 0) {
            a[i - 1] = a[i] - a[i - 1] - 1; 
        }
    }
    sort(a.begin(), a.end() - 1);
    ll ans = n;
    for (int i = 0; i < n - k; i++) {
        ans += a[i];
    }
    cout << ans << "\n";
    return 0;
}

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