Submission #520631

#	Time	Username	Problem	Language	Result	Execution time	Memory
520631		emon_2007	Stove (JOI18_stove)	C++17	100 / 100	20 ms	3352 KiB

stove

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

int n, k, t[100010], cnt;
vector<int> temp;
 
signed main() 
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> k;
    for (int i = 1; i <= n; i++)
    {
        cin >> t[i];
    }
    sort(t + 1, t + n + 1);
    for (int i = 1; i <= n - 1; ++i) 
    {
        temp.push_back(t[i + 1] - t[i] - 1);
    }
    cnt = t[n] - t[1] + 1;
    sort(temp.begin(), temp.end(), greater<int>());
    for (int i = 0; i < k - 1; i++)
    {
        cnt = cnt - temp[i];
    }
    cout << cnt;
}

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