Submission #978251

#	Time	Username	Problem	Language	Result	Execution time	Memory
978251		IPZ	Stove (JOI18_stove)	C++17	0 / 100	1 ms	348 KiB

stove

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b;
    cin >> a >> b;
    vector<int>in,out;
    priority_queue<int>pq;
    for(int i=0;i<a;i++)
    {
        int c;
        cin >> c;
        in.push_back(c);
        out.push_back(c+1);
        pq.push(in[i]-out[i-1]);
    }
    //out->in(out+1) to minus
    int now=out[a-1]-in[0];
    b--;
    while(b--)
    {
        now-=pq.top();
        pq.pop();
    }
    cout << now;
    

}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50