Submission #1105055

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105055		haianhnguyen08102007	Stove (JOI18_stove)	C++17	100 / 100	19 ms	3448 KiB

stove

#include <bits/stdc++.h>
#define int long long

using namespace std;

const int N = 1e5+5;

int n, k, a[N];

int32_t main()
{
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    cin>>n>>k;
    for (int i=1; i<=n; i++) cin>>a[i];

    sort(a+1, a+1+n);

    int sum = a[n] - a[1] + 1;
    vector <int> v; v.clear();
    for (int i=2; i<=n; i++)
        v.push_back(a[i]-a[i-1]-1);

    sort(v.begin(), v.end());

    for (int i=1; i<k; i++) sum-=v[(v.size()-i)];

    cout<<sum;

    return 0;
}

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