Submission #75195

#	Time	Username	Problem	Language	Result	Execution time	Memory
75195		vex	Stove (JOI18_stove)	C++14	100 / 100	33 ms	8820 KiB

stove

#include <bits/stdc++.h>
#define maxn 100005
using namespace std;

int n,k;
long long t[maxn];
vector<long long>v;

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

    cin>>n>>k;
    k--;
    for(int i=0;i<n;i++)cin>>t[i];
    for(int i=1;i<n;i++)v.push_back(t[i]-t[i-1]-1);
    sort(v.begin(),v.end());

    long long sol=t[n-1]+1-t[0];
    int sz=v.size();
    for(int i=sz-1;k>0;i--)
    {
        sol-=v[i];
        k--;
    }
    cout<<sol<<endl;
    return 0;
}

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