Submission #1121385

#	Time	Username	Problem	Language	Result	Execution time	Memory
1121385		kasdo	Stove (JOI18_stove)	C++14	100 / 100	43 ms	3184 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main()
{
    int n, k;
    cin>>n>>k;
    int a[n + 5];
    
    priority_queue<int> q;
    for(int i=0; i<n; i++)
    {
        cin>>a[i];
        
        if (i) q.push(a[i] - a[i - 1] - 1);
    }
    
    int ans = a[n - 1] - a[0] + 1;
    for(int i=0; i<k-1; i++)
    {
        // cout<<q.top()<<endl;
        ans -= q.top();
        q.pop();
    }
    cout<<ans<<endl;
    
    return 0;
}

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