Submission #1241924

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241924		hello10	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1480 KiB

stove

#include <bits/stdc++.h>

using namespace std;
int n, k;
int a[100005];
vector<int> v;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> k;
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    for(int i = 2; i <= n; i++) {
        v.push_back(a[i] - a[i - 1]);
    }
    sort(v.begin(), v.end());
    int res = 0;
    for(int i = 0; i < n - k; i++) {
        res += v[i];
        //cout << v[i] << '\n';
    }
    cout << res + k;
    return 0;
}

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