Submission #1093243

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093243		emptypringlescan	Stove (JOI18_stove)	C++17	100 / 100	17 ms	2980 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,k;
    cin >> n >> k;
    long long arr[n];
    for(int i=0; i<n; i++) cin >> arr[i];
    sort(arr,arr+n);
    long long ans=arr[n-1]+1-arr[0];
    long long dif[n-1];
    for(int i=0; i<n; i++) dif[i]=arr[i+1]-arr[i]-1;
    sort(dif,dif+n-1,greater<long long>());
    for(int i=0; i<k-1; i++) if(dif[i]>0) ans-=dif[i];
    cout << ans;
}

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