Submission #303374

#	Time	Username	Problem	Language	Result	Execution time	Memory
303374		vipghn2003	Stove (JOI18_stove)	C++14	100 / 100	28 ms	2320 KiB

stove

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

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,k;
    cin>>n>>k;
    k--;
    vector<int>a(n);
    priority_queue<int>pq;
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
        if(i) pq.push(a[i]-a[i-1]-1);
    }
    int res=a[n-1]+1-a[0];
    while(k--)
    {
        res-=pq.top();
        pq.pop();
    }
    cout<<res;
}

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