Submission #1241921

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241921		truongnhattung	Stove (JOI18_stove)	C++20	100 / 100	31 ms	1220 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int a[100005];
int main()
{
    int n,k;
    cin>>n>>k;
    for (int i=1;i<=n;i++) {
        cin>>a[i];
    }
    vector <int> p;
    for (int i=2;i<=n;i++) {
        p.push_back(a[i]-a[i-1]-1);
    }
    sort(p.rbegin(),p.rend());
    int sum=a[n]-a[1]+1;
    for (int i=0;i<k-1;i++) {
        sum-=p[i];
    }
    cout<<sum;
    return 0;
}

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