Submission #1254535

#	Time	Username	Problem	Language	Result	Execution time	Memory
1254535		hhoang15	Stove (JOI18_stove)	C++20	100 / 100	33 ms	1968 KiB

stove

//hhoang15
#include <bits/stdc++.h>
using namespace std;
#define ll long long

int main()
{
    int n, k;
    cin >> n >> k;
    vector<ll> a(n);
    for (int i = 0 ; i < n ; ++i) cin >> a[i];
    vector<ll> v(n - 1);
    for (int i = 1 ; i < n ; ++i) {
        v[i - 1] = a[i] - a[i - 1] - 1;

    }
    int ans = n;
    sort(v.begin(), v.end());
    for (int i = 0 ; i < n - k ; ++i) {
        ans += v[i];
    }
    cout << ans << '\n';
    return 0;
}

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