Submission #678769

#	Time	Username	Problem	Language	Result	Execution time	Memory
678769		speedyArda	Stove (JOI18_stove)	C++14	100 / 100	89 ms	6724 KiB

stove

#include "bits/stdc++.h"

using namespace std;
using ll = long long;
int main() 
{
    ll n, k;
    cin >> n >> k;
    ll ans = n;
    multiset<ll> diff;
    ll in[n];
    for(int i = 0; i < n; i++)
    {
        cin >> in[i];
        if(i > 0)
            diff.insert(in[i] - in[i - 1] - 1);
    }
    int curr = n;
    while(curr > k)
    {
        ll add = *(diff.begin());
        ans += add;
        diff.erase(diff.begin());
        curr--;
    }
    cout << ans << "\n";
}

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