Submission #1171625

#	Time	Username	Problem	Language	Result	Execution time	Memory
1171625		nguyenkhangninh99	Stove (JOI18_stove)	C++17	100 / 100	13 ms	1864 KiB

stove

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

void solve(){
    int n, k; cin >> n >> k;

    int a[n], b[n];

    for (int i = 0; i < n; i++) cin >> a[i];
    
    sort(a, a + n);

    for (int i = 0; i < n - 1; i++) b[i] = a[i + 1] - a[i] - 1;
    sort(b, b + n - 1, greater<int>());
    
    cout << a[n - 1] - a[0] + 1 - accumulate(b, b + k - 1, 0LL);
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
 
    solve();
}

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