Submission #668766

#	Time	Username	Problem	Language	Result	Execution time	Memory
668766		Darren0724	Stove (JOI18_stove)	C++17	100 / 100	22 ms	3224 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(),x.end()
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,k;
    cin>>n>>k;
    vector<int> v(n);
    for(int i=0;i<n;i++){
        cin>>v[i];
    }
    int ans=v[n-1]-v[0]+1;
    sort(all(v));
    vector<int> a;
    for(int i=1;i<n;i++){
        a.push_back(v[i]-v[i-1]-1);
    }
    sort(all(a),greater<int>());
    for(int i=0;i<k-1;i++){
        ans-=a[i];
    }
    cout<<ans<<endl;

    return 0;
}

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