Submission #1228772

#	Time	Username	Problem	Language	Result	Execution time	Memory
1228772		shio_vn	Stove (JOI18_stove)	C++20	100 / 100	12 ms	1480 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pi pair

const int N=1e5+10;
int a[N];
pair<int,int> q[N];
bool vis[N]={0};

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n,k;
    cin>>n>>k;

    for(int i=0;i<n;i++)
    {
        cin>>a[i];
    }

    int t=a[n-1]-a[0]+1;

    vector<int> vec;

    for(int i=1;i<n;i++)
    {
        vec.push_back(a[i]-a[i-1]-1);
    }

    sort(vec.rbegin(),vec.rend());

    for(int i=0;i < k - 1 && i < vec.size();i++)
    {
        t-=vec[i];
    }
    cout<<t;
}

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