Submission #648718

#	Time	Username	Problem	Language	Result	Execution time	Memory
648718		matissh	Stove (JOI18_stove)	C++14	100 / 100	63 ms	3168 KiB

stove

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

int main()
{
    ll n,k;
    cin >> n >> k;
    ll a[n+1];
    a[0]=0;
    for(ll i = 0;i < n;i++)
    {
        cin >> a[i];
    }
    sort(a,a+n+1);
    ll ans=a[n-1]-a[0]+1;
    vector<ll> v;
    for(ll i = 1;i < n;i++)
    {
        v.push_back(a[i]-a[i-1]-1);
    }
    sort(v.rbegin(),v.rend());
    k--;
    for(ll i = 0;i < k;i++)
    {
        ans-=v[i];
    }
    cout << ans;
    return 0;
}

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