Submission #849565

#	Time	Username	Problem	Language	Result	Execution time	Memory
849565		Bach21	Stove (JOI18_stove)	C++14	100 / 100	35 ms	2512 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
int n,k;
vector<int> v;
int mn,mx;
signed main()
{
    cin >> n >> k;
    int prev=0;
    for (int i=0;i<n;i++)
    {
        int x;
        cin >> x;
        if (i==0) mn=x;
        if (i==n-1) mx=x+1;
        if (i>0) v.push_back(x-prev-1);
        prev=x;
    }
    sort(v.begin(),v.end(),greater<int>());
    int res=mx-mn;
    for (int i=0;i<k-1;i++)
    {
        res-=v[i];
    }
    cout << res;
}

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