Submission #995668

#	Time	Username	Problem	Language	Result	Execution time	Memory
995668		kokoue	Stove (JOI18_stove)	C++14	100 / 100	16 ms	3316 KiB

stove

#include<bits/stdc++.h>
#define maxn 100100
using namespace std;
int n,k;
vector<long long> t;
long long a[maxn];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
        if(i!=0) {t.push_back(a[i]-a[i-1]-1);continue;}
       // t.push_back(a[i]-1);
    }
    sort(t.begin(),t.end());
    long long ans=a[n-1]-a[0]+1;
    for(int i=0;i<k-1;i++)
    {
        ans-=t[t.size()-i-1];
    }
    cout<<ans<<"\n";
}

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