Submission #1290490

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290490		bilgetux38	Stove (JOI18_stove)	C++20	100 / 100	14 ms	2012 KiB

stove

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

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int n, k;
    cin>>n>>k;
    vector<int> vec(n);
    vector<int> arl(n-1);
    for (int i = 0; i < n; ++i)
    {
        cin>>vec[i];
    }
    for (int i = 0; i < n-1; ++i)
    {
        arl[i] = vec[i+1] - (vec[i] + 1) ;
    }
    sort(arl.begin(),arl.end());
    int ans = vec[n-1] +1 - vec[0];
    for (int i = n-1; i > n-k; --i)
    {
        ans -= arl[i-1];
    }
    cout<<ans<<endl;
    
    return 0;
}

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