Submission #752124

#	Time	Username	Problem	Language	Result	Execution time	Memory
752124		vjudge1	Stove (JOI18_stove)	C++17	100 / 100	18 ms	2132 KiB

stove

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

long long a[100002];
long long b[100002];

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    int n,k;
    cin >> n >> k;
    for (int i=1;i<=n;i++)
    {
        cin >> a[i];
    }
    for (int i=1;i<n;i++)
    {
        b[i]=a[i+1]-a[i]-1;
    }
    sort (b+1,b+n);
    long long kq=n;
    for (int i=1;i<=n-k;i++) kq=kq+b[i];
    cout << kq;
}

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