Submission #206637

#	Time	Username	Problem	Language	Result	Execution time	Memory
206637		lucky_c25	Stove (JOI18_stove)	C++14	100 / 100	80 ms	2676 KiB

stove

#include<bits/stdc++.h>

using namespace std;

int main()
{
    int n,k; cin>>n>>k;
    pair<int,int> a[n];
    for(int i = 0;i<n;i++){
        cin>>a[i].first;
        a[i].second = a[i].first+1;
    }
    vector<int> raz;
    for(int i = 0;i<n-1;i++){
        raz.push_back(a[i+1].first - a[i].second);
    }
    sort(raz.begin(),raz.end());

    int res = a[n-1].second - a[0].first,tmp = raz.size();
    while(k != 1){
        res-=raz[tmp-1]; tmp--;
        k--;
    }
    cout<<res;

    return 0;
}

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