Submission #625246

#	Time	Username	Problem	Language	Result	Execution time	Memory
625246		Genius3435	Stove (JOI18_stove)	C++17	100 / 100	63 ms	2072 KiB

stove

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

int main() {
    int n, k; cin >> n >> k;
    vector<int> a (n);
    for (int &x : a) cin >> x;

    vector<int> diff (n-1);
    for (int i = 0; i < n-1; ++i) {
        if (a[i+1] == a[i]+1) continue;
        diff[i] = a[i+1] - a[i] - 1;
    }
    sort(diff.begin(), diff.end());

    int ans = 0;
    for (int i = 0; i < n-k; ++i) {
        ans += diff[i];
    }

    cout << ans+n << '\n';
}

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