Submission #1179638

#	Time	Username	Problem	Language	Result	Execution time	Memory
1179638		rhm_gan	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1480 KiB

stove

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

#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 42
#endif

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, k;
    cin >> n >> k;

    vector<int> a(n);
    for (int i = 0; i < n; i++) {
    	cin >> a[i];
    }

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

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

    cout << ans << endl;


    return 0;
}

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