Submission #655018

#	Time	Username	Problem	Language	Result	Execution time	Memory
655018		happypotato	Stove (JOI18_stove)	C++17	100 / 100	49 ms	2036 KiB

stove

#include <bits/stdc++.h>
using namespace std;
void solve() {
    int n, k;
    cin >> n >> k;
    int a[n];
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(a, a + n);
    int ans = a[n - 1] - a[0] + 1;
    int check[n - 1];
    for (int i = 1; i < n; i++) check[i - 1] = a[i] - a[i - 1];
    sort(check, check + n - 1, greater<int>());
    for (int i = 0; i < k - 1; i++) ans -= check[i] - 1;
    cout << ans << endl;
}
int main() {
    solve();
}

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